Manual - Via
Contents
1. 2 ei CS Figure 3 7 Setting the colors for different activity types 3els z M Facilities Size Show only when open M Filter shop M Network Width Offset Nodes Background e D U Facilities are an optional dataset in MATSim which are often used to model location choice or are also used during the initial demand modeling Displayed facilities can be filtered by activity type so only facilities that offer a specific activity type are shown In addition facilities can be displayed only when the facility is 10 3 2 Layers opened according to the opening times defined in facilities If the facilities are filtered the opening time of the filtered activity type is used otherwise a facility is displayed if at least one of its activity options is open 3 2 5 Dynamic Link Attributes Displays traffic volumes or average link speeds by coloring the links in the network Requires a loaded network file and an events file This layer calculates two time dynamic values for each link a traffic volume number of vehicles passing a link b average speed on a linkk This information is then provided as additional attributes to the Net work such that link volumes and link speeds can be selected as an attribute to display the network Both attributes can be aggregated to different time windows link volumes provided to the network are always scaled to hourly values This has the advanta2. relative to the selected zone the one with the yellow border The colors of the visible zones represent the amount of trips that originate in those zones and that are incoming at the selected zone 30 8 3 Aggregating OD Data 4609252 40518 5343931 96798 3 us EIS OD Aggregation Zone Details Main Zone M Border Width 6 A Q Relations Curved Gel M Incoming CH Outgoing CH Width M Scaled Related Zones Incoming W wl Recent Favorites OD Aggregation Zone 4608750 0 5 Incoming value 1384 0 Incoming 1384 Outgoing value 1585 0 Outgoing 1585 Relations 30 Figure 8 2 Aggregation of trips into relations between hexagonal zones 31 Recording Movies The functionality described in this chapter is provided by the optional Movie Recorder plugin 9 1 Overview Via includes many functionality to visualize MATSim simulation results in a time dependent manner In stead of presenting a multitude of screenshots from different times why not just show the evolving traffic patterns in an animation as a movie The Movie Recorder plugin allows to record movies of Via s visualiza tions 9 2 Creating Movies Via offers two ways to create movies from its visualizations Directly record what is shown by Via into a movie file or first create a series of screenshots and encode those images afterwards into a movie file The recording of a movie will slow down Via notably
3. and then clicking in the visualization area e g clicking on a link or a vehicle Query Buttons typically look like amp e By activating the query clicking on the query button and then entering an argument e g the link or agent id into a search field in the query controls part e By following one of the query option in a query result For this click on the little triangles shown next to query results e By aright click in the visualization area to follow up on an existing query result 3534 94135 2554 40595 Find Network Element Y M Network v Width _ 1 R Favorites Offset ip Ce Link 4243 3 Link Id 4243 Co Nodes F From Node EIA To Node I Copv Id 7 eg py DER x From Node pets T Transit Lines on Link Color 7 To Node Capacity 2000 0 e z Free Speed 12 0 a wd a ind iti Number of La 1 0 Copy Id Transit Lines on Link inverse Direction M ShowDirection wd Figure 4 1 Activation of the network query and a sample query result Fig 4 1 shows the several ways queries can be started By activating the query tool and clicking on a link By activating the query tool and enter the link id By clicking on a query result button and selecting a follow up query By right clicking in the visualization area and selecting a follow up query PWN gt 15 Chapter 4 Analyses and Interactive Queries In the following the queries provided by the layers available in the standard version of
4. faster than MP4 e MOV or AVI with JPEG encoding allows one to specify the quality of the images and has the fastest encoding Depending on the chosen quality the size of video files varies Note that video files encoded with high quality JPEG produces videos with a visual quality similar to MP4 or PNG encoded MOV AVI but with a much bigger file size If you work regularly with video files it might be useful to look into dedicated video software to re encode the generated video files with improved video codecs They can often generate much smaller video files with the same perceivable quality Also you might want to cut multiple videos using some video editing software to combine multiple recordings into one movie add titles and transitions to provide a full fledged video for your audience 34 Scripting Via 10 1 Overview The Scripting plugin provides functionality to automate certain steps in Via This could be loading data creating layers setting layer options changing views etc In addition the plugin provides an editor to edit and run scripts Scripts can be written either in Javascript the preferred scripting language or in Jython a variant of python that runs within Java 10 1 1 Script Editor The Script Editor can be opened using the entry in the Tools menu A window similar to the one shown in Fig 10 1 is opened It provides a list of scripts on the left side by default there is only one and the actual edito
5. File y xY Plotter Ixy Data E Ee Raster Image Raster Image Cancel ok fir Remove Multiple Data Sources Automatically Create Layers Figure 3 3 Automatically create new layers when adding data Please note that when you are adding multiple data files of the same type e g multiple networks and multiple event files Via might not create certain layers due to the ambiguity of which files to combine e g which network and which events to create a Vehicles layer 3 1 3 Layer Styles Most layers include options to change the visual appearance of the shown data This is great as depending on the zoom level different settings might be helpful Looking at a small detail of a road network it might be desireable to have the links shown with a heavy stroke and some offset but looking at the full network a thin stroke and no offset often looks better If you often change between two or more zoom levels keeping track of all the right settings is very cumbersome Styles help to store the state of the visualization options so it is easy to switch between two or more visual setups with ease Styles are saved in via files so they can also be used to define presets to be used during a presentation e g along with Views see Sec 3 3 To access the styles option of a layer open its option menu If the layer supports styles youll see the entries Save Style Use Style Manage Styles 7 Ven Set As Default Style T
6. Type Start End M home 08 00 00 M Trip 08 00 00 08 50 08 M work 08 50 08 16 50 08 M Trip 16 50 08 17 17 39 M home 17 17 39 Figure 4 3 The complete dav plan of one agent visualized 16 4 3 Find Network Element 4 3 Find Network Element Requires Network Laver This query can be used to identify links or nodes in a network It supports a direct search as well as a reverse search approach Either you want to know where a specific link or node is located then you enter the objects id into the search field Or you want to know which link or node it is you see on the viewing area then you can just click on the link or node in the viewer To activate the query click on the query icon amp provided in the network layer settings Once a link or node is selected a number of additional queries are available upon right clicking into the visualization area Examples of such further queries are Link Volumes and Intersection Flows as presented in the next sections 4 4 Link Volumes The Link Volumes query shows the detailed link volumes of the selected link It allows to aggregate the vol umes into different time bins and settings a scaling factor to represent correct volumes if only a population sample was simulated 000 Link Volumes 106470 Aggregate to 15 minutes Scale Factor 10 00 Export 800 x 600 px PNG PDF Link Volumes 106470 850 800 750 700 650 600 550 Y 500 450 4004 350 300
7. chapters about the different plugins e g Chpt 5 for the Public Transport plugin also refer to the queries provided by the respective plugin Visualizing Data Data visualized in Via is organized by layers Each layer is responsible for visualizing one data set Thus Via provides layers for visalizing networks facilities agents activities and trips public transport stops or just generic points in space 3 1 Working with Layers 3 1 1 Creating Layers To create a new layer make sure that the needed data is available and loaded into the application Then switch to the Layers Control and click the green plus button at the bottom of the panel or choose File gt Add Layer from the menu F S New Layer 3 E Network Displays vehicles moving around on links based on Network information from Events El Agents Required Data Activities from Events Network network xml y Activities from Population Events 10 events xml gz Car Counts Link Volumes Link Volume Differences GIS Shape File Other XY Plotter Name the new layer Leave empty to use default name for layer Figure 3 1 Creating a new layer for visualizing data Once a layer is created it will appear in the list of layers along with settings offered by the layer Layers can by hidden by unticking the checkbox in vus ere front of the layer name The order of the layers can be changed by clicking x x Remove in the are
8. especially if a high quality encoding was chosen It is thus recommended to first only record a series of screenshots and convert the images to a movie afterwards This allows to run the movie encoding on its own while not interacting with Via and especially allows to re encode the same image sequence into movies with different settings 9 2 1 Recording a Movie To record everything Via displays as a movie press the Record Movie button in the toolbar or select Record Movie from the Tools menu The movie recording process is started and a movie with pre set settings is created While Via is recording the button in the toolbar changes to red In ad dition the play length of the resulting movie is shown in thettitle bar ofthe viewer area 00 01 32 17 4700 2530 To stop the recording just press the button in the toolbar again or select Stop Recording Movie from the Tools menu The final movie file will by default be stored in the directory of the Via ex ecutable although this location can be changed in the programs op tions 32 9 2 Creating Movies 9 2 2 Movie Settings The format of the movie the default location to store it and other options can be specified in the programs options Open Via s Options menu File gt Options on Windows and Linux Via gt Preferences on Mac OS X and switch to the Movies tab 60060 Preferences General Movies Movie Format e MOV QuickTime E
9. file The vehicles layer displays the position of vehicles inthe AgentGroups network The vehicles can be colored based on a number Show name Display Agents with Ids of attributes including absolute or relative speed relative maeng al to the links free speed To change the display style of ve too E ere hicles click on the color wheel icon dialog as in Fig 3 6 SE DS will show where the color and the style of the vehicles can Zem be set It is even possible to have different styles for dif ferent groups of vehicles Sec 11 2 explains in detail how this can be done If you have the FancyVehicles plugin you can define cancel MD your own display styles given the options avallable in the FancyVehicles settings available in the Tools menu Figure 3 6 Setting the styles for vehicles Other layers e g TransitStats or data sources can provide additional attributes that can be used to color agents for example the number of passengers or agent attributes from a population file Chapter 3 Visualizing Data 3 2 3 Activities Displays the locations where agents are currently performing an activity Requires a loaded network file and an events or population file The activity layer displays a colored dot at each location where an agent is currently located performing an activity Different types of activities can be visualized with different colors To create an activity layer you have two possib
10. file system onto the dialog Via analyzes the images and calculate the expected length of the resulting movie with the current settings 9 3 Movie Formats Via currently supports the following movie file formats MOV A format traditionally used by Apple for its QuickTime software Can nowadays also be played be Windows Media Player or other video player software AVI A generic video file format which can be played by most software MP4 Also known as H 264 or AVC Advanced Video Codec this is a relatively new video file format but well supported by many software video players GIF Animated GIFs are image files that contain more than one image and which are typically on top of each other showing a new image every second or so Being a rather old file format it is well supported by Web browsers and presentation software but produces rather large files and only support a limited number of colors MOV and AVI both support different encoding of the actual video frames either as JPEG or as PNG Which format should you use Not all video players play all formats not all presentation software supports embedding of all formats So you have to try out which formats works best in your environment The following findings might help you decide upon a format e MP4 produces high quality videos with acceptable file sizes but the encoding is very slow e MOV or AVI with PNG encoding produces high quality videos with acceptable file sizes Encoding is
11. id on a separate line Next switch to the Agent Groups panel in the Controls section and read in that file by choosing Read from File in the Select Source menu Switch to the Layers panel Gel and add a Vehi L t cles layer if not already added Click on the color wheel to change the colors for the vehicles Add a new Agent Group in the dialog by clicking in the green plus button and give ita name Then select the previously read in Id Set for Display Agents with Ids and set the colors to your likings After clicking okay those vehicles whose ids match the ones in the given file are colored according to their own rules 37 Chapter 11 Common Steps Transport Simulation 1111674012 Figure 11 1 Some vehicles are colored differently based on their association to a list of ids 11 3 Distribute activity locations to actual coordinates Bugs va D output_network xml gz v 100 events sample8m x vG output_plans xml gz vt Attribute Status Age Gender Employed Activity Locations Load Attributes Litt _ Add missing agents When activities are loaded from an events file its only known on which link an activity takes place But the events do not contain any more detailed information especially no coordinate This way all activities are displayed at the end of links often multiple activities on top of each other making them hard to distinguish If you have a matching population file avai
12. in opposing directions ww SE are not drawn on top of each other The colors and width of links can be modified by click ing on the gearwheel options icon It is possible to assign an different colors to links with different allowed modes dif ferent number of lanes different capcacity and other at tributes Also one can display links with different width depending on links attributes allowed modes number of lanes and others When setting the values based on al lowed modes and a link should match multiple modes separate the various modes with a comma If a link Figure 3 5 Setting the colors and width of links should match having at least one specific mode enclose jh a network the mode with asterisks The color of a link is de termined by the first top most mode description that matches the links transport modes The list of attributes available to set the appearance of links in the network can be extended with ad ditional attributes loaded from a variaty of files Supported files are MATSim s Object Attributes saved as XML file tab separated text files or CSV files To load additional attributes click on the small triangle in the layer settings see Fig 3 2 and select Attributes Manager Attribute Allowed Transport Mode Q el o Cancel KEN 3 2 2 Vehicles Displays vehicles at their current position in the network Requires a loaded network file and an events or population
13. the different extents by just a few mouse clicks or animate the transition from the current view point to another To define a view select menu Views gt Save Current View To change to saved view select menu Views gt Jump to gt View To incrementally move to a view select menu Views gt Fly to gt View To delete a view select menu Views gt Manage Views In the Views Manager it is also possible to specify options how fast the Fly to operation works 3 4 Presets Presets allow vou to restore the visibility and styles of multiple layers at once Optionally Presets also support switching to a specific View and time as well as changing the animation speed This allows Presets to be used to quickly demonstrate several aspects of a scenario e g Zooming in to an intersection showing single vehicles driving slowly past the node or switching to a view showing a larger region and only transit vehicles during the evening rush hour Presets can be created and selected using the menu at the bottom of the Layer list 14 Analyses and Interactive Queries Many layers provide some functionality to query and analyze the loaded and visualized data The results of such queries are typically displayed in the query section right to the visualization area There additional options are often available depending on the active query Queries can be issued in multiple ways e By activating the query clicking on the query button
14. 10 50 11 00 11 10 11 20 11 30 11 40 11 50 12 00 12 10 12 20 12 30 12 40 12 50 13 00 13 10 13 20 13 30 13 40 13 50 14 00 14 10 14 20 14 30 14 40 14 50 15 00 15 10 15 20 15 30 15 40 15 50 16 00 16 10 16 20 16 30 16 40 16 50 17 00 17 10 17 20 17 30 17 40 17 50 18 00 18 10 18 20 18 30 18 40 18 50 19 00 19 10 19 20 19 30 19 40 19 50 Capacity O Single Muttiple lt 1 04 00 00 D 00 00 00 06 00 00 20 00 00 30 00 00 Chart Show Color Scheme ME Y Show Legend Export 800 x 600 px R1 RIA 84 departures between 06 00 00 and 20 00 00 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Figure 5 3 Route Grid 5 4 3 Route Grid Analysis Aggregated Vehicle Load H Single lt 1 04 00 00 gt gt Multiple 00 00 00 06 00 00 20 00 00 30 00 00 SEN Data Export 800 x 600 px Vehicle loads en LOL A se e rs Stop The Route Grid analysis shows for each served transit stop and hour the number of passengers entering or leaving a transit vehicle of the selected transit line 5 4 4 Route Flows This analysis shows the flows of passengers along the transit route It shows which parts of the route passengers trav
15. 20 A N 36 Common Steps 11 1 Optimizing Events loading Loading huge event files can take up large amounts of memory besides that it may take several minutes to perform If you already know that you re only interested in the morning hours or you just want to quickly test something out it might be useful to shorten the events file in order to reduce the amount of data that needs to be processed Even for large scenarios it s often enough to just start with loading 4 8 million events to get a first impression and to observe how much RAM is used before loading larger events files To create shortened event files you can use the following command on Linux gzcat events txt gz head n 4000000 gzip gt events sample4m txt gz This command also works with xml events as Via will gracefully handle the misisng end tag in the XML structure 11 2 Color some vehicles differently Sometimes one is interested in a few special vehicles or agents and wants to display them in another color than the rest This could be used the highlight the vehicles of acent roups a certain bus line show cabs in a different color or just I u show the vehicles belonging to drivers with specific demo hide mens graphic attributes differently Such functionality is possi en ble with the help of Id Sets in Via First prepare a simple text file containing the ids of agents that should be shown differently each
16. 250 200 150 100 Be Ben 00 00 02 00 04 00 06 00 08 00 10 00 12 00 14 00 16 00 18 00 20 00 22 00 00 00 02 00 04 00 06 00 Time Figure 4 4 Time dependent volumes on a selected link 4 5 Intersection Flows The Intersection Flows query shows the number of vehicles that cross the selected node showing the different routes the vehicles take The query supports filtering by time such that only the flows of a specific time frame or rush hour can be analyzed When moving the mouse pointer over one of the flows the volumes of only that flow will be shown on the histogram The lines thickness is typically scaled such that the highest shown volume has a fixed width This may lead to interpretation difficulties when comparing two times frames one with a large number of vehicles crossing the node and one with a small number of vehicles crossing the node as both might look similar To overcome this problem it is possible to specify a custom value as largest volume to be used for determining the scale factor of the lines 17 Chapter 4 Analyses and Interactive Queries The chart can be exported into the usual formats PNG PDF but also as animated GIF In this case a GIF image showing the flows hour by hour is created 000 Intersection Flows A A A ee AAA AA PNA DA A IO A Pay Dee pe A ey tet pe een ee Waa 00 00 00 06 00 00 09 00 00 24 00 00 Max Width at vehicles Show Histogram Scale Factor 10 00 Leave empty for
17. 64 bit version in a text editor and change the corresponding values e On Mac OS X right click on the Via application and choose Show Package Contents A new window should open Open the file Contents Info plist by double clicking on it Change the VMOptions in the Java section to reflect other memory settings On Linux open the via shell script in your favorite text editor Search for the line that starts with JOPTS and change the settings to your requirements A 2 Switch between 32 bit and 64 bit versions On Windows via exe is a 32 bit application while via64 exe is 64 bit Start whichever is more appropriate for your system On Mac OS X Via 1 5 is only available as a 64 bit application On Linux the starter shell script will use whatever JVM is installed on your default path or where JAVA_HOME points to Change your path or JAVA_HOME to either point to a 32 bit or 64 bit JVM depending on your needs 41 Appendix A Configuration A 3 Setting Colors based on Attribute Values Via allows in many places to set colors based on attribute values e g for vehicles or transit stops The way the colors can be set depends on the type of attribute values whether they are numerical values or not For non numerical values a pattern matching approach is available where the asterisk acts as wild card character matching any number of any other characters This can be used for example to match any link i
18. A da de dene 12 22 F AN Ee O E Re en ne ba 13 3A lOM un ER REV a ee Do EUR NAN ENS URI AE 13 AE ee dise da Oe eee ae Eee ee de de OR oe Ete oe e 14 Ses Bees ss een net de sede FA tes tn Se nlc a Sade ah as Ge ads Gk SPORES eb es a ae aA oh 14 Analyses and Interactive Queries 15 Show Coordinate oaoa a a a a a a 16 MOMIA ac ae EE 16 Find Network TE an GEES 17 a a ES seo EE en dt ge aae Fal aT EE 17 IMtersecton FIOWS lt semi a a AIR 17 SBIEELILINK Analysis zes dad Bu AA AENA AA 18 EIERE ura EA A A ES a dd e Rire da des 18 RACE rondas mck di A dE aa di a AA dra 19 Contents 5 Public Transport SL SO ee E a e in ee Re til ee Oe me AER SE ee Re e ddr id D Er Se OSE eee Se ee S2 MANS EB nl adas MI EA EIA e AA RE aro rasa iz PASSES ON ee aio ee ce o O ise O icht eege Bes deu tb ce he A RAN 53h Ee EOD e i wk ecw ut E oe e e r NI E E ed de ew EE et we ee Di EE CEET ae 593 Departures da ee e EE e e GS A Di VEH tere GE s AE KEE Ger Nadir hte S 5 4 1 Passengers Entering Leaving 4 de e ae owed A housse 5 4 2 Vehicle Load Aggregated Vehicle Load D RE e IGN dio Ee nds a ee OR da eh A ROUESIEIOWIS Sy in IS dt nr a US EE 6 Map Background Bl OL au a a a o Wh Se se A t Oe SP SE da a HS a AAA A SPARE E AAA ee ne E gern de A OH Se EENEG M ee 7 Car Counts ZU COUN US EANGE u a 2 sees oe as ay ak Ee Bins ere Hanae o a he ame 8 Aggregator Sl OVGIWIEW ade er Dee L a hot ei daw dien
19. Each analysis can either be applied to exactly one departure of the selected route of for all de partures within a specific time window If not stated otherwise the departure time at the first stop of the route determines if a departure falls within a time window or not 5 4 1 Passengers Entering Leaving This analysis shows the number of passengers entering or leaving at each stop lt also shows the number of passengers that are within a transit vehicle when it departs at a stop If multiple departures are selected values are accumulated 5 4 2 Vehicle Load Aggregated Vehicle Load The Vehicle Load analysis shows for each departure the number of passengers in a transit vehicle when it departs at a stop If multiple departures are selected values are not aggregated but shown for each single departure In contrast the Aggregated Vehicle Load analysis extracts aggregated statistical values from multiple departures 23 Chapter 5 Public Transport Analysis Vehicle Load H Single lt 1 04 00 00 INEA Multiple 00 00 00 06 00 00 20 00 00 30 00 00 bes 600 x 600 px Vehicle loads Passengers per Vehicle 06 00 06 10 06 20 06 30 06 40 06 50 07 00 07 10 07 20 07 30 07 40 07 50 08 00 08 10 08 20 08 30 08 40 08 50 09 00 09 10 09 20 09 30 09 40 09 50 10 00 10 10 10 20 10 30 10 40
20. User Manual Version 1 6 SENDZON understanding mobility User Documentation for Senozon Via 1 6 2011 2015 Senozon AG 2015 10 15 Contents 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4 2 5 2 6 32 3 3 4 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 Getting Started 1 SONES MENS ss eh Bit re EA ch re a Ae eA 1 Motala GOR ans ea Are aa ase a ec Ga a de e e ee a aa a A 1 Beie e EE EE 1 Bee EE tee Ree LS ee ee te Lie onde ech 2 Application Overview 4 Vieira ele s ee ie es e A cece Wes tg ie Mana de der ee a A Es dan 4 OCDE y eo Aa a E 5 Visualization Area 3 bom A e e oe ht eh A de e Law de haw de e de e de de e A 5 EENEG e i do De Te du br oo mr al a Ge AT 5 EIERE sv o re aio oo D See er ato o E Se D ad ee 6 CUBES e iia y a NG A a y o Ee oe e y is 6 Visualizing Data 7 Workne WrimMLayETS a ims daa p de pro e dr de hee ae eee eee dde ed de a 7 3 1 1 Creatine LIVETS LE ns e di PE e ale OE ee tS a ee Sor dard 7 3 1 2 Create Layers Automatically seo eh we a a eg HS a 8 Iko VET styles seen e A o EA ke ARA A ete 8 HONOR did A dd BS A de ad ie Ee os 8 SD Ne q a o dr A o eee dt Gee ee E o Ad daa Ge a ee den 9 ne ds o 8 Se oh ak dl AN a a e E AA a a 9 DL ACONI OS 2 oe A A A O A A A AA nt ae 10 SL RACIMOS oa a ora AA DALIA AAA As AA d 8 10 Se DM EIN EES A Ee d de eh lcd EE we ada dde 11 3 2 6 Difference Network 3 24 crm a a as a do Be 11 327 Link Volume Diferentes zo ra wad ea a O he dr A a Ab d 11 328 ADO US ba id an hk re da N
21. Via are presented Plugins may provide additional layers with queries 4 1 Show Coordinate This query is quite simple It allows you to enter a coordinate s x and y values and display the coordinates location in the visualization area This is useful if you want to highlight a specific location e g for screen shots but don t want to create and load a coordinates files see Sec 3 2 9 for this Make sure to have the Move View activated in the toolbar and switch to the Queries Control where you can enter the x and y values of the coordinate Ha r DD Denis 3 El s 2 M M Network Width O A3 Offset mmm A a Nodes Show Coordinate X 4592000 Y 5821000 OK Favorites 4592000 0 5821000 0 a ws Background h Figure 4 2 Locate a specific coordinate 4 2 Show Agent Plan Requires at least one of Vehicles Layer Activities Layer If this query is selected one can either click on an agent or enter the agents id and press Enter to show an agents day play Depending on what layers are loaded the agent s activities and or the agents legs are highlighted in the visualization area and listed as a query result In the query result section single legs or activities can be shown or hidden to customize the presentation of the agent s realized day plan Ha FR 2 i Pees 4593989 99648 5824126 54224 Controls 3 EI Show Agent Plan Recent Favorites Plan of Agent 470667
22. When querying car counts a small chart showing the comparison is shown directly in the query result instead of opening a large window allowing for quick and easy checking of the counting stations in a region or along a route Time input Time data formatted as HH MM SS sss is now supported in many places that accept numeric values Activity chain analysis The activity chain analysis shows you which activity chains are performed how often by the agents Improved Network export Network Export now supports many different options including exporting only the currently visible area of a network Zoom to Layer Each layer now has an option Zoom to Layer to automatically change the current view to fully show the selected layer only 44
23. a next to the layer name and dragging the layer Up or down iN mins WW the list of all lavers Me On the right end of the layer s title bar a triangle icon offers additional gt options to work with a layer in a popup By default options to rename or eene remove a layer are available Certain layers provide additional functionality RP in this place as well such as the network laver depicted Figure 3 2 laver with set tings and the layer options opened Chapter 3 Visualizing Data 3 1 2 Create Layers Automatically The typical process to visualize some data consists of at least two steps Add the necessary data file then create a layer using this data to show something This can be simplified by instructing Via to automatically cre ate certain layers when specific kinds of data is loaded Switch to the Data Sources control first button in the control section At the bottom you ll see a little gear icon Click on it and select Automatically Create Layers A dialog will open where you can select which layers should be automatically created Pi Automatically Create Layers EX Automatically create selected layers when adding data sources Layer Required data sources J Network Network d Vehides Events Network EE Activities from Events Events Network L Activities from Population INetwork Population F Link Volumes Events d Facilities Facilities J Shape File Shape
24. ataset path to network xml gz network via createLayer network networkData change default link width printin current link width network linkSize 5 network linkSize change link offset printlin current link offset network offset network offset 10 show nodes printin nodes currently shown network showNodes true network showNodes change node size vei LL a D L 1 en gt Figure 10 2 The Examples palette shows many different script examples The following is an example script loading some files creating layers and saving a few screenshots at different times of day networkData via createDataset sampleData network xml eventsData via createDataset sampleData 10 events xml gz network via createLayer network networkData vehicles via createLayer vehicles networkData eventsData activities via createlayer activities networkData eventsData vehicles loadEvents this also loads the events for activities Oo ON HD WH E W N gt via sleep 1000 give via a short amount of time to set up initial view D zz O via time 08 00 00 via view zoomTo 100 100 4800 4300 A A gt A W N via saveScreenshot eight_oclock png i a U for i i lt 10 i 18 via time 7 3600 i x 60x5 proceed in 5min steps 19 via saveScreenshot example_ i png
25. ate projection which will be different from the co ordinate system you use for your data In order to display the correct region on the Map given your datas coordinates you have to specify which coordinate system your visualized data is in Just select from the menu to do so Please note As mentioned Internet Maps use a special coordinte projection To exactly display your data on top of such a map computationally expensive coordinate conversions would need to be done slow ing down the visualization enormously To overcome this problem Via does not do any reprojection of co ordinates Instead it only ensures that the background map and your data are exactly positioned on top of each other in the center of the visualization area This will result in much faster visualizations but will typically show minor differences near the edges of the visualization area dependending on your zoom level 26 Car Counts The functionality described in this chapter is provided by the Car Counts plugin 7 1 Car Counts Layer Displays comparisons between simulated and real world traffic counts Requires a loaded traffic counts file to visualize counting station locations For comparisons to simulated traffic counts an events file is required as well This layer allows the visualization of traffic counting sta tion locations and perform extensive comparisons of real world traffic counts to simulated traffic volumes Once the layer is added one ca
26. automatic scaling Export 800 x 600 px PNG PDF GIF Node 3077 06 00 09 00 0 00 00 00 24 00 00 250 20 0 4 110918 106738 4 y 110917 106737 gt Figure 4 5 Time dependent Intersection Flows 4 6 Select Link Analysis Requires Network Layer and Vehicles Layer Selecting one link for this query it analyzes which vehicles are currently located on that link and then highlights all links where those vehicles will travel along during their current trip or even during the whole day Instead of all vehicles currently located on the link the analysis period can be extended to incude all vehicles on that link in the current quarter half or full hour or even on the whole day The query result is dynamic If the time changes and vehicles enter or leave the selected link the highlighted links will change accordingly depending on the actual vehicles being on the link To create a Select Link Analysis select the corresponding query tool in the network layers settings panel and click a link Alternatively you can first select a link with the regular network query see Sec 4 3 above and then right click and select Select Link Analysis 4 7 Select Facility Analysis Requires Facilities Layer Activities Layer Vehicles Layer The Select Facility Analysis is similar to the Select Link Analysis it shows the routes of vehicles going or coming from a selected facility The Select Facility Analysis is available from the settings pane
27. coordinates should be stored in aseparate column Vial supports CSV files which use comma or semicolon as field separator gpx GPS devices often record points in GPX files Via can load GPX files and extract the coordinates from recorded tracks and waypoints In the full version of Via the layer offers a lot more functionality and supports additional attributes for each data point When adding an xy data source a dialog containing import options can be shown by clicking the corresponding button in the data sources view In the dialog attributes can be selected that should be imported the name and data type can be specified for each attribute and it can be specified with columns contain the X and Y values 600 Import XY Data Use M M M M Name PersoniD CoordID X Y Z Date Type Number Number Number Number Number Text 1 1 0 684629 718 247013 736 423 5124785 29 10 2010 2 1 1 684631 3261 247013 2352 423 5182068 29 10 2010 3 1 2 684632 668 247012 7701 423 5242729 29 10 2010 4 1 3 684633 8654 247012 2999 423 5297995 29 10 2010 5 1 4 684635 0511 247011 8224 423 5350724 29 10 2010 E 1 g NA Ab 1771 247011 226 A4A97262QAR61 29 n FNIN M First data row contains attribute names E A A Y Figure 3 12 Settings for importing XY data The layer settings offer a lot of functionality to work with the additional attributes For example it is possible to color the points based on an attribute s value or change the symbol or the size of the dot acco
28. e it offers a time distance diagram to compare the scheduled travel times and the simulated travel times from stop to stop It is also possible to show the number of passangers entering and leaving a transit vehicle for each departure of a route A transit line can be queried in different ways The query can be activated using the button on the Transit layer settings panel then switching to the Queries Control panel and choose a transit line from the popup menu One can select a link using the network query see Sec 4 3 and then select an option on the query result to list all transit lines serving the selected link One can select a stop and give list all transit lines serving the selected stop Once a transit line and route is selected clicking on the chart button opens a new window with different available analyses for the selected transit route Sec 5 4 explains the available transit route analyses in detail 5 3 3 Departures Given a selected stop one can list the next few departures at that stop based on the current time Alterna tive having a list of transit lines serving a stop or a link one can list the departures of specific transit routes from the list of transit lines 5 4 Transit Route Analysis The transit route analyses are available for each transit route Both a TransitSchedule layer and a Tran sitStats layer must be loaded for the analyses to work Some analyses also requre the Vehicles layer to be loaded
29. eed slider next to it to animate the shown time Soon you should see green triangles representing vehicles move around the network Play around with the Size and Offset sliders in the layers settings area and see which effect they have on the visualization Fig 1 2 gives you an impression how the visualization could look like after modifying those settings 1 4 First visualization PAm Meena B Controls Layers D Fees se v Vehicles Senozon Via 316 01987 2781 60209 Show Coordinate Size v Q Favorites Offset ES amp v Network Width Offset i i GI A Nodes wv Background HO A 07 16 51 Ce 05 50 07 30 10 00 12 30 15 00 17 30 20 00 22 30 150 2 0 2 150 s CG Presets Figure 1 2 Network and Vehicles loaded and visualized Application Overview 2 1 Main Window Senozon Via i Ia Br e gagara bk E e y Y Background v A 41 0 436 0 Show Coordinate X Ye OK Favorites 1 150 2 0 2 150 hr Presets A EN Figure 2 1 The main window The main application window can be differentiated into the following areas Toolbar at the top of the window Visualization Area taking up most of the place in the middle of the window Time and Speed Controls below the visualization area Control Section to manage the visualized data on the left side of the window Query Section on the right side to wor
30. el This analysis gives an easy overview if demand is about equally distributed along a route if there are some hubs along the route e g for feeder lines where most people enter or leave at one specific stop or even if a long transit route could be split into two parts without having too many people needing to switch from one line to another 24 Analysis _ Route Flows O Single lt 1 04 00 00 Lei Multiple 00 00 00 06 00 00 20 00 00 Chart Data M Use Colors M Show Totals U Overlapping Label rotation Diagonal Up Export 800 x 600 px NG POF R1 RIA 84 departures between 06 00 00 and 20 00 00 Figure 5 4 Route Flows 5 4 Transit Route Analysis 30 00 00 A K 25 Map Background 6 1 Overview The Map Backgorund plugin provides several possibilities to display maps as background images 6 2 Layers 6 2 1 GeoTIFF Displays a raster image Requires a loaded GeoTIFF file This layer allows to display geo referenced raster images typically called GeoTIFF in Via These are pixel images where the image s edges have coordinates assigned so they can be displayed relative to other coordinates 6 2 2 WebMap Displays maps from internet services Requires a working internet connection The WebMap Layer allows to display maps as backgrounds from several online sources e g from Open StreetMap Bing or Google Maps Maps on the internet typically use a special coordin
31. ems In the newly opened dialog enter a name for the to be defined coordinate system and then enter the description of the coordinate system As description Via understands either an EPSG code in the form EPSG 4326 or a so called well known text WKT description of a CRS A good reference for coordinate reference systems is http spatialreference org where you can find the EPSG codes or WKT of a large number of coordinate reference systems worldwide Preferences File Name DHDN GK3 Enter WKT or Authority Code of a Coordinate Reference System General EP5G 31467 Courier Hey Identified CRS EPSG DHDN 3 degree Gauss Kruger zone 3 Screenshot Directory Name DHDN GK2 Chr deb afereme Systems ai EEN or Authority Code of a Coordinate Reference System PROJCS DHDN Gauss Kruger zone 2 GEOGCS DHDN DATUM Deutsches Hauptdreiecksnetz SPHEROID Bessel 1641 6377397 155 299 1526126 AUTHORITY EPSG 7004 Identified CRS EPSG DHDN Gauss Kruger zone 2 Figure 11 3 The application preferences lists the defined coordinate reference systems Additional ones can be defined either using an EPSG code or a well known text description 39 40 Configuration A 1 Change the RAM Limit Java applications need to have a limit set how much memory they can use To change this limit e g to load bigger scenarios proceed as follows e On Windows open the file via ini or via64 ini for the
32. fic Volumes 9 10 10000 u E E D gt gs g d 3 Kal 200 1000 Counting Station O Y Y O O Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Figure 7 2 Comparisons with counting stations as charts 28 Aggregator 8 1 Overview While one of MATSim s strength due to its agent based nature is its handling of disaggregated data for the understanding and presentation of results aggregated data has still some advantages The Aggregator plugin helps in such situations as it allows to aggregate arbitrary geographical data into arbitrary regions or zones Alternatively it also supports aggregating data into origin destination relations Data sources for the aggregation can vary The most flexible approach is using custom XY data see Sec 3 2 9 Alternatively some layers in Via serve as a data source as well e g activities or facilities 8 2 Aggregating Point Data To aggregate and analyze point data create a new layer of type Aggregation Analysis Click on Data to select the data source and configure the type of aggregation The configuration is split into 3 parts 1 Selection of the data source e g an XY data set activities facilities or some other available data 2 Optionally filtering the data 3 Type of aggregation e g count minimum maximum value etc Click on Zones to configure in what geographical space the points should be aggregated into Available ag
33. ge that the assigned color ramp does not have to be adapted if the aggregation level is changed Absolute and relative link volumes are provided Absolute link volumes are the actual number of vehicles counted per link Relative link volumes are values between 0 0 and 1 0 corresponding to the amount of vehicles compared to the available capacity of the link Note This layer was originally called Link Volumes 3 2 6 Difference Network Displays the absolute or relative difference between two link attributes from the same or different net works Requires one or two loaded networks This layer allows to calculate the absolute or relative difference of two attributes The attributes can be from the same or from two different networks and the attributes can be scaled e g to compare link volumes between two different sample scenarios 3 2 7 Link Volume Differences Displays absolute or relative difference between two link volume data sets Requires a loaded network file and two events files Note This layer is the predecessor of the Difference Net work Layer and will be remove in a later version 2 Network Settings This layer calculates the difference of two link volume data See sets useful to show differences in two scenarios This Peer rer erreur allows you to load two Link Volume layers based on two en different events files one e g being a base case and the irk heen Dane Cae fate Link Volumes Case Study ab
34. gregation spaces are 1 Square grid 2 Hexagonal grid 3 Arbitrary shapes Requires a loaded shape file Fig 8 1 shows an example of some GPS traces being aggregated into hexagonal zones resulting in a density map of the GPS observations 29 Chapter 8 Aggregator 687444 59156 246836 79732 JOLE M XY Plotter Size j Q M Background 692994 89932 249562 39488 Controls Ot sr M AggregationAnalysis Data Zones Q 9 M XY Plotter Y Size r a tt Background gt Figure 8 1 Aggregation of GPS data into hexagonal zones for a density map 8 3 Aggregating OD Data Sometimes one is interested in aggregated movements e g the number of trips from one region into another one Create a new layer of type 0D Aggregation Analysis to perform such aggregations The con figuration of the aggregation is very similar to the one of the point data aggregation except that you might have to specify a second pair of x y coordinates for the aggregation to work When visualizing the results this layer differentiates between incoming and outgoing data per zone In the case of trips this relates to trips ending or trips starting in a specific zone When quering a zone with the corresponding query zone the incoming outgoing values always relate to the selected zone In the example shown in Fig 8 2 trips are aggregation leading from one zone to another zone Only incoming relations are visualized incoming
35. having 33 less traffic in the study case than in the base case The second relative difference is calculated as 1000 2000 1500 2000 resulting in 0 25 or 25 less capacity of the link used 3 2 8 Shape File Displays arbitrary shape files e g for background maps Requires a loaded shape file This layer allows one to visualize shape files points line and areas are Controls Supported First load a shape file as data source then create a layer for bB cid gt S HPA it If the shape file is shown in the wrong place or even rotated change output_network xml gz the options in the data sources view First make sure the shape file is Dani har SS in the correct coordinate reference system CRS Next if the shape file natural shp Cl appears to be rotated and squeezed select the checkbox Use Long Lat Convert Coordinates instead of Lat Long This is due the fact that shape files or more exactly mam _WGS84 e coordinate systems do not specify if the first coordinate is the longitude to _DHDN o 1 or the latitude The list of available coordinate reference systems can be M Use Long Lat instead of Lat Long adapted in Via s options menu File gt Options on Windows and Linux Via gt Preferences on Mac OS X Figure 3 10 Options for Shape In the layer s option menu the triangle on the right side of the layer s Files title Shape layers offer the option to display a shape file only during a
36. he user is interested in the amount of passengers per station during a certain time of day only e g only morning or evening rush hour this can be achieved by setting a time limitation at the events data set settings It is possible to first load the events set to only the morning rush hour and afterwards generate a second Passenger Flows laver and load only the events for the evening rush hour Use the possibility to give distinctive names to your layers so you can remember which layer contains which data 5 3 Queries There exist several transit related queries which are to some part dependent on each other Starting point for most queries is the default transit query which can be activated by pressing the query button on a transit 22 5 4 Transit Route Analysis schedule s settings panel Once this is active transit stops can be clicked on in the visualization area or transit lines can be looked up in the Query Control section 5 3 1 Transit Stop This query allows to identify stop facilities by clicking on them or by searching for them given their id Ifa transit stats layer is loaded the query also offers statistics about the number of persons waiting at a stop location over the time of day in a chart 5 3 2 Transit Line This query allows one to highlight the routes of single transit lines see Fig 5 1 for an example For each transit route a number of statistics is available if a Transit Stats layer is loaded For exampl
37. ilities Load the activity data from events The location based on link ids and the start and end time of activities are retrieved from events Load the activity data from population The location link id or if given the exact coordinate as well as the start and end time of activities are extracted from a plans file Only one of the two sources events or population can be used to cre ate an activities layer If you want the actual activity times from events but want to use the exact location as given in a plans file follow the steps outline in Sec 11 3 Each activity type can be shown in adifferent color To setup the colors click on the color wheel icon Then assign colors to the different activity types To add a new activity type click the icon Note that you can use an asterisk as wildcard character to match multiple similar activity types and assign them one common color To learn what activity types actually occur in the data click on the little gearwheel icon and select Find attributs Alist of all activity types found in the loaded data will be shown along with the color in which they would currenctly be displayed Please note that the Activities Layer may slow down the visualization enormously if a large number of agents Is shown 3 2 4 Facilities Displays the locations of facilities Requires a loaded facilities file Figure 3 8 Home facilities displayed over a planning network
38. ility Load Time window Filter by Activity Tynes Export x px M leisure Facility Load M shop 14 leisure shop M Show separately Differentiate by Attributes _ leg mode time Figure 4 8 Facility Load one of the available Facility Charts 20 Public Transport The functionality described in this chapter is provided by the Public Transport plugin 5 1 Overview The public transport plugin provides many functionality for working with transit related data in MATSim Most of the functionality is for working with MATSim s transit schedule data and the outcome from a sim ulation including public transport 5 2 Layers 5 2 1 Transit Schedule Displays transit stop facilities and transit lines Requires a loaded transit schedule file This layer displays all stop facility locations and supports many of the transit related queries with schedule data fps 54 5 Figure 5 1 Locations of transit stop facilities and the route of a single transit line visualized 21 Chapter 5 Public Transport 5 2 2 Transit Stats Displays number of persons waiting at transit stop facilities Requires a loaded transit schedule transit vehicles and events Provides data for a number of transit related queries The Transit Stats layers is similar to the Transit Schedule layer but uses Events to extract simulated per formance measures instead of the fixed schedule Thus it also displays the stop facilities but can col
39. k with interactive queries All the parts can be freely re arranged by drag and drop on the title bars of the parts In case you want to restore the default arrangement of the components select menu Window gt Reset Window State In the following the main functionality of the different components will be described in more details 4 2 2 Toolbar 2 2 Toolbar Here 03123 9 Figure 2 2 The Toolbar The actual buttons on the toolbar depend on the available plugins The buttons shown in Fig 2 2 are stan dard buttons and available in all installations Save Save the currently loaded data to a file This stores all data required for displaying the loaded layers in a file together with the current display configuration colors sizes etc The filename of such files ends on via Note Storing big data sets can take several minutes Open Loads the data from a previously saved file Any already loaded layers will be removed Mouse for Moving If active the mouse pointer can be used to move the visualized region Agent Plan Query Activates the agent plan query see Sec 4 2 Zoom In Zoom Out Zoom to Full Extent Zooming functionality PDF Export Takes a single PDF Snapshot of the display area Note Taking a PDF snapshot can take some time on complex visualizations with many agents being shown Screenshot Recording If activated constantly saves screenshots of the visualization area The location where the screenshots are saved can be co
40. l of the layer After clicking on a facility the routes of arriving agents departing agents or both can be visualized Agents staying at the facility within the selected time frame can be put into an agent group This allows to visualize then only those vehicles or otherwise filter on those group 18 4 8 Facility Charts 4594544 73841 5819586 09121 Controls a z Find Network Element AA 23105 e gt 5 la Recent Favorites Find Network Element Selected Link Analysis 3105 FE Show all trips of agents 7 PAL Q3105 P 9 wd 30min e Favorites Create Agent Group Link 3105 Link Id 3105 5 Link 3105 From Node Id 2525 Selected Link Analysis To Node Id 6310 Transit Lines on Link Allowed Tran car Y Length 417 370638 mr Capacity 1866 66672 Free Speed 13 8888 Number of La 2 0 Inverse Direction M ShowDirection wd Figure 4 7 The highlighted links change as vehicles enter or leave the selected link 4 8 Facility Charts Requires Facilities Layer Activities Layer If your MATSim scenario uses facilities it is possible to analyze the number of agents arriving departing or being at a facility For this use the facility query and click on a facility Next right click and select Facility Charts A new window will open as shown in Fig 4 8 which allows you to select the different analyses and modify the charts 19 Chapter 4 Analyses and Interactive Queries Facilities Analysis Fac
41. lable you can enhance the activity data with the exact coordinates from the population file To do this switch to the Data Sources panel in the Controls section and add the population file A small table will appear giving you options to load several attributes from the population file among them the activity locations Check it and click on Load Attributes The loading may take some time but afterwards the activities are displayed ina likely more meaningful way Sea ZOon Figure 11 2 Activities before and after loading the detailed coordinates 38 11 4 Customizing the list of available Coordinate Reference Systems 11 4 Customizing the list of available Coordinate Reference Systems When loading Shape files known from GIS applications Sec 3 2 8 it may happen that the shapes are dis played distorted or at a wrong location This is often due to the fact that the shapes coordinates do not match those of the network or other coordinates used in MATSim data When loading Shape files it is thus possible to transform the coordinates in the Shape file to another coordinate reference system The list of available coordinate systems to transform from to can be customized in Via s preferences on Windows and Linux menu File gt Options on Mac OS X menu Via gt Preferences To add another coordinate reference system CRS open the Options dialog and click on Add next to the list of Known coordinate reference syst
42. ls and a more extensive description of available functionality Start Via and after the main window appears choose File gt Add Data Navigate to the sample data and select the file network xml Choose File gt Add Layer and click on Network The just previously loaded file is suggested to be used which is okay Click on Add to add the network layer The network should be shown in the visualization area and the network layer be listed next to It 0090 Senozon Via PAM sas e Controls Layers 361 07619 4105 13146 ni Ge BR Show Coordinate IE X v Network YE OK Width Favorites Offset Nodes Y Background l I I Y I l l l l hr Presets 150 2 0 2 150 ER Figure 1 1 The main window with the network laver added Now lets add some vehicles to it Again choose File gt Add Data and select the file 10 events xml gz Then add a Vehicles Layer File gt Add Layer select Agents gt Vehicles click Add The vehicles layer will also be listed on the side of the visualization area As event files can be rather large they are not automatically parsed Instead layers that depend on events show a button Load Data which must be clicked manually in order to parse the data from the events Click this button to start the parsing of the events Once this process is finished a timeline appears beneath the visualization area Move the slider to some point in time e g to 8 o clock or move the sp
43. n a network containing the mode walk by using the pattern xwalkx For numerical values different colors can be assigned to specific values Then for values inbetween the color can either be interpolated or not If the colors are not interpolated the specified values typically act as the lower boundary for the color specified only with the exception of the smallest value whose color is also used for values smaller than it color settings without interpolation attribute value with interpolation AgentGroups Display Agents with Ids a gt matching all Display Style gt gt A v vehicle speed Value Color 5 0 Sans 10 0 A 30 0 Dr ee Cancel Figure A 1 Colors used depending on values are interpolated or not 42 What s new in Via 1 62 Via 1 6 brings the following major new and improved functionality Link Labels Network layers can now display labels along the links showing any link attribute s value Intersection Flows Find out how many vehicles make a right or left turn at an intersection and at what time See Sec 4 4 Network Router Find the fastest route through the network Time Dependent OD Aggregator Easily create dynamic aggregations that update themselves over the time of day Transit Stop Areas Due to modelling reasons often multiple transit stop facilities are on top of each other Easily aggregate them now to visualize the values of the stop areas instead of a single tran
44. n see the locations of the count ing stations white circles and the links that are assigned to the counting stations The links can show how well the simulated counts match the real world counts with different colors As an alternative symbols a plus or a minus depending on amound of simulated traffic com pared to the counted traffic can be displayed in different colors To simplify the identification which link is mapped to which counting station connectors can be displayed as well If the events data is from a sampled simulation run only e g a 25 sample run the simulated counts ex Figure 7 1 Comparisons with counting sta tions displayed on the counted links tracted from the events file can be scaled by a corresponding factor in this case 4 0 in order to make the comparison between simulated counts and real counts meaningful In addition to the visualization in the viewing area the counts data can also be analyzed using a number of charts and tables by clicking on the Charts button In the window that opens comparisons for all selected counting stations or just for single counting stations can be done typically either per hour for for the whole day If counting stations are outside the study area or are known to contain outdated or wrong data they can be excluded from the analyses by unticking them in the list 27 Chapter 7 Car Counts Show Log Log Plot gege AER Export x px Traf
45. ncoding JPEG Quality Medium d WW AVI Encoding JPEG m Quality Medium C MP4 UE ES EEE A Movie Directory Choose Figure 9 1 Setting the defaults for recording movies The available settings include achoice of the movie file format for a detailed discussion of the different formats see Sec 9 3 the playback speed of the movie frames per seconds and the directory where the finished movie will be saved to If the movie directory is empty movie files will be stored in the directory of the Via executable 9 2 3 Converting Images to a Movie To convert a series of previously recorded screenshots into a movie select menu Tools gt Images to Movie A dialog as shown below appears DOC Create Movie Converts a series of images to a movie file Movie Format O MOV QuickTime Encoding JPEG za Quality ET O AM Encoding JPEG Quality Medium MP4 Frames per Second MA 25 Image Folder Fees Master evento bee emer ie ae m Mi Choose 347 files resulting movie length 14 seconds Convert Figure 9 2 Settings for converting a series of images to a movie file 33 Chapter 9 Recording Movies Select the desired encoding of the movie also see Sec 9 3 for more details about the formats and the number of frames per seconds Next choose a directory containing all the image files you want to convert into a movie Alternatively vou can drag and drop a directory from your
46. nfigured in the application s options Single Screenshot Saves the current display as a bitmap image 2 3 Visualization Area The visualization area covers the biggest part of the main window Here your network vehicles and other data will be visualized Which data is visualized is controlled by the Layers Control see Sec 2 5 You can navigate in the visualization area by clicking and dragging the area with your mouse while the corresponding functionality is activated in the toolbar When some other query tool is activated use the middle mouse button to drag the visualization area or switch back to the regular mouse functionality by clicking on in the toolbar To zoom in or out you can either use the corresponding buttons in the toolbar or use the scroll wheel on your mouse 2 4 Time and Speed Controls Below the visualization area you find two sliders The first controls the current time shown while the second controls how quick the time advances in the visualization Directly after starting Via the time slider does not show any indication of time Only after loading some time dependent data and visualizing it by adding corresponding layers will the slider display the range of time for which data is available You can customize the shown range of time by using the Menu Time gt Set Custom Time Range The Time menu also offers several commands to control which point in time is visualized Chapter 2 Application Overview 2 5 Con
47. o save the current visualization options of this x ja Remove layer as a style just select Save Style and enter a name The style will then Enos e es appear in the sub menu of Use Style where it can be selected If you have Manage sty a corporate appearance or prefer other defaults than Via s developers you oe can define your own default style for this layer by selecting Set As Default Export Network Style Then all new layers of this type will use your current settings on With Manage Styles you can delete styles restore the application de fault style and define styles as being global By default styles are related Figure 3 4 Access to the to the current visualization and are stored in via files But if you want Styles for a layer some styles available all the time no matter what data you are visualiz ing you can define those styles as global using the Manage Styles dialog A global style is stored locally with the applications options so every time you start Via on this machine the style will be available under Use Style 3 2 Layers In the following sections the layers available by a default installation of Via are described Plugins can add additional layers which are described in their own sections 8 3 2 Layers 3 2 1 Network Displays a network Requires a loaded network file Using the settings it is possible to offset links eithertothe se Network Settings left or the right such that the links
48. or them according to the number of passengers waiting at the stops In addition it provides data to a lot of transit related queries 5 2 3 Passenger Flows Displays number of persons entering or leaving a vehicle at a stop Requires a loaded transit schedule and events The Passenger Flows layer allows to visualize the number of passengers that enter or leave a transit vehicle at a stop location including people who change transit lines at a stop The layer requires the information to be extracted from the simulation events The values can be calculated either for all passengers at a stop or only concerning a subset of agents specified by an Agent Group see 11 2 The values are currently only available for the complete time frame covered by the events but are not disaggregated into hourly values Once the events are loaded the user can choose from 4 different settings One can either visualize the number of passengers entering boarding a transit vehicle or the number of passengers leaving alighting a transit vehi el Q cle For both entering and leaving either an absolute or ee ae relative value can be visualized If an absolute option is STEE chosen the visualization scales with the absolute number of passengers boarding or alighting at the stops Larger circles then represent more passengers The relative op d enter absolute tions are only useful if the events were restricted to a per enter relative at stop e
49. r area on the left side To add more scripts the Plus Button can be pressed By default it creates a new script using Javascript To create a Jython script click the little triangle next to the plus symbol and select New Jython Editor Scripts can be renamed by double clicking on the script name in the list on the left side or deleted by clicking on the close symbol x next to the script name 000 Script Editor Show Examples 2 Clear ouput before execution _ Execute Initializing Scripting engine Please wait JavaScript Oracle Nashorn 1 8 0_45 ECMAScript ECMA 262 Edition 5 1 Scripting engine is ready Use via to access the main application Type via help to get information about available commands Figure 10 1 The Script Editor Instead of lengthy API documentation Via provides short examples and code snippets that show vou how to automate certain tasks in Via To access the examples press the Show Examples button In the upper 35 Chapter 10 Scripting Via right corner of the Script Editor window A floating palette will appear providing examples on a variety of topics see Fig 10 2 O Script Examples JavaScript Y Datasets Load a Dataset Rename a Dataset Y Layers Create a Layer Y Views Working with Views Working with Layer Styles Writing to the Console Y Layers Background Layer Network Layer Vehicles Layer networkData via createD
50. r newer including Windows 7 and Windows 8 Linux Senozon Via requires an existing installation of Java 7 or newer Oracle s Java Runtime Environment JRE is recommended which can be downloaded from http java oracle com Please note that OpenJDK and GC are sadly known to cause problems when running Via on Linux Mac OS X Senozon Via runs on Mac OS X 10 7 3 Lion or later Memory To run Senozon Via make sure you have enough RAM Small scenarios can usually be visualized with less than 1 GB of RAM Typical scenarios with around 1 million agents can be run with around 3 GB of RAM 1 2 Installation The application does not require any special installation You can just unzip the downloaded file and move the directory to whatever place you like e g Program Files on Windows or Applications on Mac OS X In the Linux distribution a starter shell script is provided which can be used as the target of a symlink or for a custom launcher 1 3 License To run Senozon Via you need a license file When you start Via for the first time the application will ask you for the license file in order to fully setup and start the application You can manage your license later at any point by selecting the menu entry Help gt License Manager Chapter 1 Getting Started 1 4 First visualization This section gives just a quick overview how to do some basic visualization with the sample data provided See the following chapters for more detai
51. rding to an attribute s value In addition points can be displayed only during a specific time window also based on attributes If some of the points form a logical group e g points from a GPS track of a single person and group membership is available in an attribute it is even possible to interpolate the location of time dependent points along the time of day 3 2 10 Image Displays arbitrary images at custom defined locations Requires a loaded image file This layer allows to display custom images at fixed locations on the screen It can be used to show custom backgrounds images or logos 13 Chapter 3 Visualizing Data 0 0 XY Layer symbol Labels Symbol Transparency Size Options SES Attribute Mapping Attribute v Value 0 00 EE 236633 00 ME 668543 00 E 1537382 00 2979845 00 ME 58752364 00 SE eh Lidl tt Figure 3 13 Settings for displaying XY data 3 3 Views Do you prepare for a presentation or a movie recording or need to make multiple screenshots of the same region It happens very fast that one moves the viewport around in Via or one zooms in or out to have a quick look at some other region But how to get back to that fixed region you wanted to have the same screenshots Views store the the currently viewed extent of your scenario So you can define multiple views e g one for a birds eye perspective one for a specific intersection and another one for a certain corridor It is then easy to switch between
52. sit stop Presets Restore multiple layer styles along with a view and optionally time and speed Great for showing different aspects of a scenario during a presentation Voronoi cells for XY Layer Instead of just showing points in an XY Layer it is also possible to show all the area that is closest to a shown point the so called Voronoi cell Scripting A brand new plugin that allows you to automate some steps in Via Easily load data create layers set styles save screenshots and export analysis results fully automated In addition the following new and improved functionality also exists in the latest Via version Improved User Interface The user interface has been standardized and simplified while offering more op tions in many places Improved Network Display Besides link labels links can now be displayed using varying transparencies Link Volumes The link volumes for a single link can now be shown as a chart showing the volume over the time of day See Sec 4 4 Faster Display of Facilities and XY Layer Facilities Layer with many facilities and XY Layer with a high num ber of points should now be displayed faster Movies as animated GIF When converting a series of images to a movie Animated GIF is available as a new format Improved Transit Stop Query The Transit Stop Query now shows a lot of information that had to be queried separately before 43 Appendix B What s new in Via 1 6 Improved Car Counts Query
53. solute second one acase study The calculated difference is pro iones case study tro vided as additional attribute to the Network To display ik Volumes Differences relative the link volume differences one has thus to select the cor responding attribute in the Network display settings The difference can be computed in three different ways one named absolute difference and two variants Figure 3 9 Selecting the right attribute for dis for the relative difference Make sure to select your pre Playing a network ferred variant for the relative difference in the layer set tings The meaning of the three alternatives are Absolute the difference between the absolute link volumes of the two cases 11 Chapter 3 Visualizing Data Relative Relative diff of to A The difference between the two link volumes per link is set in relation to the link volume of the first one Relative abs diff of rel volumes The absolute difference between the two relative link volumes To clarify the matter consider the following example A link in the network has a defined capacity of 2000 veh h In the base case 1500 veh h were counted In the study case 1000 veh h are counted The absolute difference would be calculated as 1000 1500 resulting in an absolute difference of 500 ven h The first relative difference is calculated as 1000 1500 1500 resulting in 0 33 This can be inter preted as
54. specific time window This can be used e g to highlight areas in a time dependent manner 4592405 43441 5820013 22776 Controls 2 ba AS gt M Vehicles v w _ Offset U M railways shp y M natural shp M Network Size gt O ns Offset U Background a S O20203 Background Map and Railroad lines OpenStreetMap contributors CC BY SA Figure 3 11 Two Shape file layers added for visualizing nature and railroad tracks 12 3 2 Layers 3 2 9 XY Plotter Displays colored dots at coordinates specified in a file Requires a file containing coordinates and attributes see below The XY Plotter plots dots at specific locations given in a file This layer is mostly useful to quickly test some data before or after conversion from other formats Just dump some coordinate values into a file and have a look if their distribution makes visually sense and is what you expected A variety of file formats are supported xy txt Text files ending on xy were traditionally the only format supported by Via By now the files can also end on txt Such files must contain at least two columns of data separated with a tab The first column contains usually the x coordinate while the second contains the y coordinate Attributes can be included in additional columns csv CSV Comma separated values files can often be created by spreadsheet applications Each attribute including x and y
55. t Roe ib DUR et Ses 8 2 ASeregaline PONE Dela fc oe Boe oe SOS SEA 8 3 Aeeresatine OU gt dacs oe eee ae Bear eek Dh Ee eae a ee 9 Recording Movies Il TOUCH IN e 2 ee oe oe ee CU eb Oe Be Cee SE ee eA he ee EE Se eecht o A A Ms gs A fe a te eo ges eat en e 9AT RECOMANE A e E ONE SEDE p E e cece ie ws Ge Ce ee e de amp E e Be Ce ee te it e E 9 2 3 Converting Images to a Movie 44 22 04 E be dde e EE ab e er ee A D MOVIE FORMALS a gig a e E M A ANA EES 10 Scripting Via TONOS dun a a IN Be Mv gtk ee ey ie EE EE EE LS e a e een en 11 Common Steps 11 1 OBEimlzing Events ee Bauere zu a ER D ANT a NAS TMS MT OLIS ER Nes 11 2 Color some vehicles differently ou ema dd ILE MER er we ire RSI eue 11 3 Distribute activity locations to actual coordinates 2 Cm on a 11 4 Customizing the list of available Coordinate Reference Systems Appendices A Configuration AS CMa Se ee EE le urea te Seance abe SA ete eS Aide Bask wea ei mie A 2 Switch between 32 bit and 64 bit versions se eat eee eee ed rn A 3 Setting Colors based on Attribute Vall es saure a ew ae Bey ren ed wR A A B What s new in Via 1 6 21 21 21 21 22 22 22 23 23 23 23 23 23 24 24 26 26 26 26 26 27 2 29 29 29 30 32 32 32 32 33 33 34 35 35 39 37 34 57 38 39 40 41 41 41 42 43 Getting Started 1 1 System Requirements Operating System Windows Senozon Via runs on Windows XP SP 3 o
56. trol Section EST og Figure 2 3 Control Switches In the control sections various settings for controlling the visual appearance or the available data are pre sented The controls are organized into four groups which can be switched by clicking on the different ICONS Data Sources Add data files e g network xml events xml gz zones shp to the application to make them available for visualization Either click on the green plus button at the bottom of the area or Just drag and drop files into the area to add them Layers Add and manage layers visual representations of loaded data Each layer is typically responsible for displaying one aspect of the data e g the network vehicles activities one shape file Agent ID Groups Manage sets of agent ids which can be used by layers to customize the visualization For an example see Sec 11 2 Overlays Manage the appearance of overlays over the visualization area like the clock shown in the top right corner 2 6 Query Section One of Vias strength is its wide range of analyses it offers Most of the analyses start by querying one of the visualized objects e g a vehicle a transit stop a facility Based on such a selection additional queries are possible e g the lines serving a transit stop the number of persons in a facility All these queries and their results are available in the query section Chpt 4 looks at the available queries in more detail In addition the
57. xit absolute exit relative at stop son group during loading Is this the case and a relative option is chosen the visualization scales relative to the amount of the number of entering or leaving passengers in the person group compared to all passengers at that stop If no person group was specified when loading the data the relative values are all set to 100 resulting in all eme drawn circles having the same size To clarify the settings consider the following example In your region you have a few stops which are close to schools universities or other educational institutes If you just compare the absolute values without restriction to a person group you can visually recognize which stops have the largest amount of passenger traffic If you restrict the analysis to a person group e g people aged between 15 and 20 you can recognize which stops have the highest number of student passengers If you have restricted the analysis to the student person group and visualize the values with a relative option you can recognize at what stop you have a high share of students Consider you want to perform a passenger survey specific to students It might be easier to find participants at a stop with a high share of student passengers but not necessarily at a stop with a high absolute number of students as at such a stop there could be even more non student passengers making most of the passengers irrelevant for the survey Tip If t
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