Issue 1.0 - Road Traffic Equipment Manufacturers Ltd
Contents
1.2. number e Click Next to run the setup wizard e Set the loop length distance from leading edge to trailing edge of loop in cm for each lane For dual loop arrays set the loop separation distance from trailing edge of primary loop to leading edge of secondary loop i e the gap between the loops in cm for each lane Set Classification Scheme to Euro6 default and speed units to your choice of metric or imperial units 17 Click Next NY TSE 1 LONNECIEG ht Please ensure the physical parameters Loop Length Lanes 1 2 200 200 forthe loop are correct Ensure the appropriate classification scheme and 200 200 speed measurement in km or miles per LOOP Length Lanes 3 4 hour is selected 100 100 Lane Adjust Ch1 Ch2 _Vehicle Classification Scheme yoy C Kph Euro 6 Cancel Upload File lt lt lt Back 1 Enter an appropriate site name and site number site number is max 4 digits Click Next 5 IWUI_DEI 2 CUNNCCICU gr es Please set site name Maximum 31 Site Name poneer chars Avoid 1 lt And Site number SiteName SiteNo combination 1 must be unique You should check to Site No Unique ensure itis unique before proceeding IV Update time with this PC M Update date with this PC Cancel Upload File lt lt lt Back i Chose a format for data storage The log option will store data in a text file format which can easily be viewed on
3. the BUS_LANE command from the drop down list and amend it in the command string box as follows BUS_LANE lt lane gt lt state gt Where lt lane gt 1 2 3 or 4 and lt state gt 1 for ON or 2 for OFF Thus BUS_LANE 31 turns on bus detection for lane 3 BUS_LANE 10 turns off bus detection for lane 1 Turning bus detection on will create a positive switch output for 500 milliseconds when a bus is detected regardless of direction of travel Any of these elements can be amended using the appropriate SELECT_ commands Full details can be found in the User Manual section 9 3 9 page 51 Entering HELP_SELECT provides on screen information about all SVDS commands while SELECT gives current settings and is a useful check to confirm your changes have been retained correctly 24 Date Time Count Lane Lenath Speed Class Gap Headway Axles Heiaht PW Dir Suspectcodes Eure PU Y ese Cog mune vor mere SITE NOT_SET SITE_Number 1 CLASSIFICATION EURO 6 SPEED Mph Loop Signature An Terminal gt z elect commands are only for SWOUT and CAMERA device These commands are used to trigger an external switch When a specific event is detected An event is one or combination of a vehicle type and speed occuring on one or both lanes If Speed and Class is selected then Switch outputs when both conditions are met SELECT Prints all the current select values SELECT_DEVICE lt s gt lt tpulse gt where s NONE MODEM CAMERA SWOU
4. COOT output 1 for each loop 4 x SVDS output 1 for each loop Firmware Apps Single Loop Classification The sip firmware App is designed for the collection of fully classified vehicle data length speed class gap from a single inductive loop in each traffic lane This allows much more useful data to be obtained from legacy volumetric count sites or traffic signal loops without the cost of upgrading the loop arrays Each SP4 can connect to up to 4 traffic lanes Compatible with networking SVDS SCOOT all alerting amp communications options Traditional Dual Loop Classification The modsig firmware App is intended as a direct replacement for legacy speed classification loop detectors Each SP4 can monitor 2 traffic lanes expandable to 14 lanes by networking multiple units Offers automatic switching to single loop classification mode in the event of a loop failure providing continuity of operation and flexibility in scheduling repairs Compatible with SVDS SCOOT incident detection and all communications options Cycle Detection The cycledet firmware App allows the detection counting and classification of pedal cycles in dedicated cycle lanes Up to 4 cycle loops can be monitored by each SP4 Compatible with SVDS alerting and all communications options Networking Up to 7 SP4 units can be networked together either at the same site or within a 4km distance Each SP4 can be configured separately an
5. Help Exit COMMISSIONING OF SP4 C BASIC SET UP UNIVERSAL e With USB cable connected to the SP4 C from the main screen on MicroDial click on the Direct button to make a connection If the SP4 C hasn t previously been configured a dialogue will open giving you the option of uploading an existing configuration file or running the setup wizard Site data ons w Site report status fa Fa Site Report OFF a Vehicles in Site ff gt 3 aman Battery Upload 0 0 v 0000000 a 2 E e AE R C More details The connected module hasnt been setup Strongly recommended that you Single Loop Classifier setup before proceeding Do you want run the wizard to set it up If so press next NOT_SET 1 1 1 2009 00 00 37 Next gt gt gt Upload Fite 10 14 14 03 2013 0t Note This dialogue also tells you whether the unit is running single loop classification firmware unit is described as Single Loop Classifier or dual loop classification unit is described as 4 Loop Classifier If this does not suit your requirements the firmware can be changed in less than 3 minutes by following the instructions on pages 36 38 of the RTEM User Manual supplied with these course notes Versions of modsig and sip firmware for use with the SP4 C have the suffix ev after the version
6. MOURED CABLE MAX FEEDER CABLE RUN LENGTH 250M WHERE A WIRELESS LINK IS TO BE USED BETWEEN THE LOOP AND CONTROL CABINET DETECTION EQUIPMENT MUST BE LOCATED BETWEEN THE LOOP ARRAY AND WIRELESS LINK LOOP FEEDER CABLE SHOULD BE TERMINATED TO THIS POINT AND PROVISION MADE FOR HOUSING 8 POWERING THE DETECTION EQUIPMENT IF LOOPS ARE TO BE USED FOR BUS PRIORITY OR SIGN ACTIVATION RECOMMENDED LOCATION OF LOOP ARRAY IS BETWEEN 50M AND 130M UPSTREAM OF SIGNALS SIGNS BUT IN ANY CASE SHOULD BE UPSTREAM OF MAXIMUM QUEUE EXTENT IF THESE CRITERIA CAN T BE MET REFER TO RTEM FOR ADVICE SITE INSPECTION SETTING LOOP LENGTH amp LOOP SEPARATION EXAMPLE 1 FREE FLOWING TRAFFIC ALL SPEEDS CABINET 2M 2M 2M EXAMPLE 2 SITES WITH CONGESTION amp AVERAGE SPEED lt 50MPH CABINET ee ee ee eee 4 INSTALLATION OF SP4 C IN A SIGNAL CONTROL CABINET Insert the card in an empty slot without a back plane At present we have to maintain compatibility with all controller types and therefore have screw connectors on the back of the detector card rather than connectors for controller back planes e Plug the Loop Cable supplied with the SP4 C into the 8 way orange connector in the back of the SP4 C Connect the other ends of the cable directly to the loop feeder cables where they are terminated into the cabinet Co
7. T tpulse 1 65535 millisecs SELECT_ONSTATE lt s gt where s ON OFF 1 0 If s ON 1 when condition met switch is closed for tpulse milliseconds If s OFF 0 when condition met switch is OPEN for tpulse milliseconds SELECT_SPEED lt lane gt lt speed gt where lane 1 2 and Speed 1 255 Switches when speed exceeds SELECT_CLASS lt lane gt lt class gt Switches when class is detected Where HIOCC DIR plus Euro6 classes MOTOR_CYCLE CAR CAR_TRAILER RIGID HGV BUS For Other classifications class n where n 1 255 SELECT_VEHONLY lt s gt s ON or OFF Vehicle print and log filter By setting this filter only the vehicle s that meetthe condition is detected L gt Rash ce il gt Enter commands gt gt HELP SELECT Save it to a logfile OFF System Signatures Straddle setup Manual fit Double click to send Y Enlarge terminal wind SELECT_CLASS v Select Loop Setup commands Advance setup commands Show signature gr v Select commands Replay Modem commands Other Help Version 2 6 Rel 8 7 a WJ 16 35 i EE gt 4 fee c a ES 2 Fl 35 2012 To create an artificial output trigger for testing purposes enter the following command TEST_6 lt n gt Where lt n gt is the output number from the tab
8. TRAINING COURSE SP4 C Bus amp SCOOT Detector Card Basic Contact Details R T E M Limited Unit 3 Leaches Farm Business Centre Bicester Road Kingswoood Aylesbury Bucks United Kingdom HP18 ORF Telephone 44 0 1296 770765 Facsimile 44 0 1865 451477 Web www rtem co uk Email sales rtem co uk SP4 C Basic Training Course R T E M Copyright 2013 This document may not be reproduced without the permission of R T E M Ltd Document Control Document Number TCSP4 C001 Issue Number 1 00 Authors Paul Stroud Document History Issue Date Description Release Notes Initial release Basic course covering 1 00 01 03 2013 Issue 1 00 installation commissioning and maintenance Advanced course to follow COURSE CONTENTS Introduction to RTEM amp background to development of SP4 C Page 5 Overview of SP4 C capability amp applications Page 6 Suitable detector loop arrays Page 10 Installation of SP4 C in a signal controller cabinet Page 12 Establishing PC connection to SP4 C Page 15 Commissioning of SP4 C Page 17 Routine Maintenance amp Fault Investigation Page 26 Support Page 27 Q amp A Page 28 1 INTRODUCTION TO RTEM The company was formed in 2006 with the aim of bringing the next generation of traffic data collection technology to the marketplace By combining expertise in loop detection wi
9. able levels of classification or for advice on any other suspected fault please see the support notes in the following section 26 8 SUPPORT RTEM provides 1 and 2 line support for the SP4 C 1 Line Support Available Monday Friday between 09 00 amp 17 00hrs excluding Bank Holidays Tel 01296 770765 Office Mobile 07918 704643 Anup Mobile 07780 333244 Paul Email support rtem co uk 2 Line Support If we are unable to diagnose or resolve a problem through telephone or email support we will agree an appropriate course of action with you which could involve monitoring the site remotely if possible sending an RTEM engineer to site e requesting the return of the SP4 C for testing e dispatching a temporary replacement SP4 C unit or component All SP4 units benefit from an initial 2 year warranty extendable at the client s discretion Whilst under warranty any site visits and or work necessary to resolve suspected faults will be carried out free of charge Outside of the warranty period charges for site attendance may apply You will be informed in advance of incurring any charge if this is the case Typical charges are 250 for 72 day site attendance and 450 for a full day Bespoke support arrangements are in place for some customers Please enquire when requesting support to ascertain what arrangements are in place for the equipment concerned 27 Notes 28 Notes 29
10. d appropriately for the site using any of the Apps but is then subsequently controlled through the master unit which stores all data and handles communications This allows the flexibility to cover multi lane sites without the need for specialist high cost equipment or to manage all the units along a road through a single communication channel The RS485 connection can alternatively be used as a means of retrieving data from a single SP4 3 SUITABLE DETECTOR LOOP ARRAYS SP4 C detectors can be used with existing SCOOT Stop Line or Speed Detection loops providing they are in reasonable condition and do not span more than a single traffic lane MOVA loop compatibility is anticipated in the next 6 months tests are ongoing to fine tune classification accuracy with these diamond shaped loops If new loop arrays are to be installed it is recommended to install 2 loops per lane to benefit from built in redundancy to the following specification Sites should all be installed in accordance with the specifications for Speed Measuring Loops for All Purpose Roads laid out in MCH1540 and MCHW Vol 3 G Series drawings copies of these docs available in pdf format from RTEM on request Exceptions to this specification are as follows ALL LOOPS SHOULD HAVE 4 TURNS OF CABLE LOOP LENGTHS AND SEPARATION AS BELOW FEEDER CABLE SHOULD BE TWISTED LOOP CABLE WITHOUT JOINTS EACH PAIR HAVING 20 TWISTS M APPLIED THIS IS PREFERABLE TO AR
11. d click Modify e If you were able to monitor motorbike height readings adjust the BikeRatio settings in the same way If not see below then as a rule of thumb the BikeRatio should be set to approximately 7 x the Car Ratio or 3 x the average HGV height reading e Adjust the Speed Limit setting to reflect the posted speed limit or the average speed if significantly different 4 Advanced screen Inthe Enter Commands box type in the new settings as follows e modsig or scoot firmware e CAR RATIO lt L1 gt lt L2 gt BIKE_RATIO lt L1 gt lt L2 gt SPEED LIMIT XX e slp firmware e CAR_RATIO lt L1 gt lt L2 gt lt L3 gt lt L4 gt BIKE_RATIO12 lt L1 gt lt L2 gt e BIKE _RATIO34 lt L3 gt lt L4 gt SPEED LIMIT XX Where lt L1 gt is the desired value for lane 1 and XX is the new speed limit setting If you were unable to monitor motorbike height readings see HELP below If the site has insufficient flow of motorbikes to allow you to monitor their height readings in a reasonable time scale as is commonly the case apply the following rule of thumb BIKE_RATIO 7 x CAR RATIO or 3 x HGV height reading INFORMATION The Speed Limit setting is used as a further check on vehicle classification For example a bus or HGV is unlikely to be travelling well in excess of the posted limit This setting is not used for reporting on the number of vehicles exceeding th
12. d tablet Low power battery only solar and mains operation GSM GPRS telemetry options Compatible with ADSL Ethernet RS485 communications Data formats compatible with industry standard analysis packages and UTMC databases Technical Specification Weight 160g Dimensions Eurocard size to fit in 3U rack mounting File Storage FAT 16 Windows compatible Memory card type Compact Flash CF Size 512MB 8GB Voltage 4 24v DC Power Consumption 100mW Operating Temperature Range 20 C to 70 C Environmental Protection IP64 Firmware Flash upgradeable by user Ports USB comms RS232 comms modem RS485 network Data Retrieval Methods Direct USB connection with PC Tablet Removal of CF card GSM dial up telemetry GPRS telemetry ADSL connection Ethernet connection RS485 network connection Length Classification Accuracy 3 with 95 confidence Speed Classification Accuracy 3 typically 1mph Vehicle Type Classification Accuracy Euro6 Pedal cycles gt 95 Motorbikes gt 95 Cars Light Goods Vehicles gt 98 Cars LGVs with trailer gt 90 Lorries gt 95 HGVs gt 95 Buses Coaches gt 95 With 95 confidence based on typical loop array Supported Vehicle DoENI5 Classification Schemes Euro6 User Definable Class Schemes up to 24 vehicle types Switched outputs 4 x S
13. e speed limit or for triggering external devices such as speed activated signs It is therefore sensible to adjust this setting to the average speed of vehicles at the site if this is significantly different to the posted speed limit Doing so will have no detrimental effect on any other aspect of the SP4 s operation or its data 21 ADVANCED SET UP CONFIGURING SCOOT OUTPUT S The SCOOT output for each loop is configured automatically within the firmware and will start working immediately the SP4 C is powered up For the majority of sites no configuration is necessary If when monitoring the input to the controller you see the SCOOT loop polarity is reversed i e loop shows 7 when no vehicle is present and 0 when a vehicle is over the loop this can be remedied through the MicroDial Advanced screen using the SELECT_ONSTATE command see User Manual section 9 3 97 page 90 for full details 22 ADVANCED SET UP CONFIGURING SELECTIVE VEHICLE DETECTION OUTPUT S FOR BUS DETECTION to the Advanced section in MicroDial File Setup Device setup S Survey setup Remote Setup Reports Graphical Analysis Read to Database Help Exit 3 8 E te Jee Direct Dial sites E Site report status 4A Site Report OFF Vehicles in Site Report Vehicle Count Seant 0000000 0 Wizard Ramie device s d 23i5i2012 jes More details Retrieve remote unit data continue from last session Desc
14. f its potential Recommended for All sites with a single loop in each traffic lane e Sites with 2 loops in each lane where the user has concerns that one or more loops may fail Firmwares this applies to e Standard factory installed modsig firmware which will classify from a single loop in 1 or 2 lanes slp firmware which will classify from a single loop in up to 4 lanes e scoot firmware used for classifying from a single traffic signal loop Best time to carry out this operation As part of initial commissioning of equipment only adds approx 5 mins to the procedure e Parameters can be changed at any time via remote telemetry connection but best carried out with direct connection on site and with live traffic passing over the loops 1 Whilst connected to the SP4 from MicroDial main screen click on Live button from toolbar at top of window 2 The Live screen will display and records will appear for all traffic passing over the loops Pay particular attention to the Height column and make a note of the average reading in this column for standard cars i e not 4x4 in each traffic lane If the site is busy you may find the lane filter tick boxes on the right hand side of the screen useful to monitor 1 lane at a time 3 Also make a note of the average Height readings for motorbikes passing over the loop not clipping the edge and HGVs in each lane if the mix of traffic on site permi
15. le on page 14 This will create a permanent output not 500 milliseconds until cancelled with the command TEST_5 lt n gt 25 T ROUTINE MAINTENANCE amp FAULT INVESTIGATION The SP4 C requires no more routine maintenance than any other detector card During routine checks on the controller the following is recommended e Press the CF CTRL button to illuminate the LEDs on the SP4 C front panel e Monitor the LED activation to check vehicle presence detection Loop O P LEDs and bus detection Class O P LEDs e Connect PC to SP4 C to monitor LIVE view if any concerns Retrieve traffic data from CF card if required The SP4 C has no user serviceable parts In the event of a loop fault the SCOOT output s will default to ON and the bus detection outputs will default to OFF In rare circumstances underground services or other causes of electromagnetic disturbance can cause interference to the signals from detector loops If this is sufficiently severe it may impact on the quality of vehicle classification which can be achieved It is very difficult to anticipate which sites may be affected by this phenomenon It is possible to vary the frequencies at which each loop is monitored and filter out interference to a degree Ultimately if interference cannot be overcome it may be necessary to re site detector loops or consider using alternative bus detection methods at affected locations If you are not achieving accept
16. lour coding for Loop Cable Loop 1 Orange Loop 2 Yellow Loop 3 Brown Loop 4 Red 12 Power the SP4 C using the mains power adapter provided or by connecting to a 12 24v DC power supply within the cabinet Note the top connector is ve the bottom ve Getting these the wrong way round will not cause any damage but will not power the SP4 If the LEDs do not illuminate on pressing the CF CTRL button check polarity is correct Connect required outputs and a common ground from SP4 C using 10 way green screw terminal connector 13 Terminal Output for Type of Output Output No 1 Top Lane 2 Selective vehicle detection SVD eg bus detection 2 Lane 1 Selective vehicle detection SVD eg bus detection 3 Lane 4 Selective vehicle detection SVD eg bus detection 4 Lane 3 Selective vehicle detection SVD eg bus detection 5 Loop 2 SCOOT 6 Loop 1 SCOOT 7 Loop 4 SCOOT 8 Loop 3 SCOOT 9 All outputs at Ground must be connected for outputs 1 8 to 10 Bottom Positive Not used 14 5 ESTABLISHING PC CONNECTION TO SP4 C The PC should have RTEM s MicroDial software installed along with Java if necessary and the CP210x driver for USB communications License files are required to run MicroDial a dialogue will appear on first trying to run the software with instructions to obtain these licenses There is no up front or ongoi
17. n Baud Rate to 57600 15 Set the Direct Connection Com Port to Com1 10 based on the USB port you will usually connect with Note that if you connect a powered SP4 you should be able to identify the COM port number from the Windows Device Manager anager a ha File Action View Help a gt Bm w 4 aij PaulStroud HP b Batteries b 8 Bluetooth Devices p gli Computer p EF DeviceVM IO Drivers b ey Disk drives p MM Display adapters b QA Human Interface Devices gt g IDE ATA ATAPI controllers b Imaging devices p lt 2 Keyboards b M Mice and other pointing devices EJ Modems b amp Monitors p gt Network adapters 4 77 Ports COM amp LPT Pot z Bluetooth Serial Port COM9 i i e CP210x USB to UART Bridge Controller COM3 gt Bi Processors b a Sound video and game controllers p JE System devices gt Universal Serial Bus controllers Set the database path to a convenient location you can have multiple databases Save amp Close Click on Direct button to communicate with the SP4 C Note If you vary the USB port used MicroDial will report a failure to connect and will offer the option of running auto setup to scan through ports 1 10 to try to find an SP4 If this is unsuccessful you will either need to revert to the normal USB port or change the settings as described above 16 6 File Setup Device setup Survey setup Remote Setup Reports Graphical Analysis ReadtoDatabase
18. ng cost relating to licensing the software e Run MicroDial and enter login root and password 1234 other user accounts can be created by ticking the box on the login screen before logging in From the Setup menu select PC Communication Setup E MicroDial Paul Stroud File Setup Device setup Survey setup Remote Setup Reports Graphical Analysis Read to Database Help Exit oe PE bE ee Remote Connection Setup Direct Connection Setup PC Setup This only needs to be done once The Modem Baud Rate database path where all the site information are stored 9600 57600 ame en R plus the communication setup for direct and the remote 9600 57600 will be saved The remote is only for manual remote Modem Com port connection auto schedule group dialers have separate Ber m Direct Connection Com port customised setups Select Modem cou Knowsley MBC Database Path New or Selected Modem Root path a Knowsley MBC C Customer Databases Gloucestershire Add to Modem List Delete from List E mail settings for outgoing reports and fault reports R No Email setup found JAT SP E000v18C18D280 0 ATS30 0L1M1 amp M48 amp K1 amp H1B0B15N1X4 JATDT Run Email setup wizard J Modem Script Save Script 17 01 R a Warr ww GM 2 Ei D Ry vw PM wm 9 6 IE Onia Set the Direct Connectio
19. ription Connected Device s Site Data Nevalue O r 2 5 Site No 1 Retieve P Site Name NOT_SET DeviceType Classifier 4 loop Site Review Firmware Version 360v Compact Flash card size 2048 Power Lane 1 loop_length Lane 2 loop_length Lane 1 loop_sep Lane 2 loop_sep Classification Speed ET 617718 Reset to Factory setting eset Preserve settings Read 7 a ar WODE 23 Date Select the Manual tab then tick the check box Select commands which populates the drop down box with all the relevant commands 2 Advanced Diagr osis Select Loop 7 i Select Loop GQ O 5 bits Loop Signature Loop Signature Time Count Lane Length Speed Class Gap Headway Axles Height PW Dir Suspect codes HELP SELECT Time Broadcast Size 12 I Iil gt Enter commands gt gt SELECT_CLASS T Save it to a logfile System Signatures Straddle setup Manual OFF SELECT_CLASS C Setup commands C Advance setup commands w Select commands C Modem commands C Other Version 2 6 Rel 8 fit Double click to send C Enlarge terminal wind Select Loop C Show signature gr Help 16 27 23 05 2012 a ul Select
20. site or in the office using Notepad or similar The binary option will create a more compressed data file which cannot be read before processing into the MicroDial database but allows quicker transmission over GSM telemetry links 18 WWI_2EI 1 LONNECIEg j Format amp Open a log file C Format amp Open Binary file Don t open do nothing will do it latter Cancel Upload File lt lt lt Back i Click Next Select the type of modem connected if appropriate y NWI LECI 2 CUNRNCCECU me aR GSM 9600 Modem Wavecom modem Please selectthe Modem Ifyou select GSM setthe GSM roaming in hours GPRS Modem which will force the GSM modem toroam C None and register with a network GSM Modem Roaming hours 1 C Power up daily On Hour 0 23 C Power up hourly 5 Stay on mins Always ON Cancel Upload File lt lt lt Back i i Click Next Press Do It to save the configuration to the SP4 C and your PC You will then be prompted to run a Report Wizard to define how raw data is processed when downloaded from the site in future This can be run at any time from the Reports menu 19 ADVANCED SET UP OPTIMIZING SINGLE LOOP CLASSIFICATION ACCURACY On most roads the SP4 will classify accurately from a single loop in each lane using the default settings There are however a few quick adjustments you can make which will ensure the system is working to the best o
21. th design skills from the mobile phone industry we have developed a product based on the technology of today without the encumbrances of any legacy product RTEM launched the SP4 loop profiling classifier with a range of software applications that introduce a wealth of innovative enhancements to the Traffic Data Collection Industry These pioneering enhancements include the first product in the world to provide classification data from a single loop In addition we offer classification based on the number of axles and axle spacing from a site using a standard 2 loop classification array e Established in 2006 e 1809001 2008 registered e Highly experienced staff e Products completely manufactured in UK to ensure high quality e Marketed directly to UK customers since 2009 RTEM equipment is in use for automatic traffic count and classification in 11 local authorities across England and Scotland as well as consultancies private companies and certain foreign territories BACKGROUND TO DEVELOPMENT OF SP4 C The SP4 s single loop classification capability led customers to ask whether it could be used for the collection of full classified traffic data from SCOOT loops which have similar characteristics to traditional traffic count loops Tests showed that the SP4 could indeed be used for this purpose and its performance in congested traffic conditions allowed good quality data to be collected where traffic classification sites would previousl
22. ts this in a reasonable time scale If not please see HELP below INFORMATION The Height measurement on the Live view screen refers to the height of the vehicle s chassis The figure does not relate to any specific unit mm cm or similar but provides a relative scale which is used by the SP4 in verifying the vehicle classification derived from the chassis profile Because the signals created by loops can vary significantly according to the quality of cable used size of loop number of turns of cable installation depth and age the SP4 can be calibrated according to the readings actually being obtained on site Unfortunately because of all these variables and the need to have a visual check on passing vehicles it is not possible at present to fully automate this process The remainder of this procedure can be carried out either from the Site Data screen or the Advanced Signatures in V2 6 Release 6 or older screen of MicroDial 4 Site Data screen 20 e Ensure the More details tick box is ticked then click on the Req button to retrieve settings from the SPA A scroll bar will appear on the right Scroll down or click on any setting and arrow down to display the BikeRatio Car Ratio and Speed Limit settings Ifthe car height readings you took differ significantly from the default settings double click on the setting for the appropriate lane change the value an
23. y have been ruled out RTEM therefore developed the ability to replicate SCOOT output to a signal controller to allow SP4s to be installed as temporary or permanent replacements for the original loop detector card Once customers became aware that vehicles could be economically and accurately classified from a SCOOT loop we started to get requests to provide a bus detection output This was implemented but was limited by the SP4 having a single switched output it was therefore not possible to provide both SCOOT and bus detection output from the same detector At this stage development of the SP4 C was started to provide multiple configurable outputs in a format more convenient for installation in signal controllers Officially launched at the JCT traffic signal symposium 2012 the SP4 C is in use in 5 areas around the UK and has been installed in both Siemens and Peek controllers 2 OVERVIEW OF SP4 C CAPABILITY amp APPLICATIONS Removable memory card Serial number amp contact phone no Key Features The SP4 rack mounted detector card builds on the proven benefits of the boxed SPA Connects to up to 4 inductive loops Multiple units can be networked Tolerant of a wide variance in loop specification and quality Records vehicle by vehicle data up to 53 million vehicles Multiple output switches for integration with external devices Removable flash memory card USB Engineers interface to PC Androi
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