June 2001
Contents
1. flashing amber mode However am uncertain as to what happens to the pedestrian facilities at these junctions do not support all the traffic engineering principles that have mentioned above happen to believe that the UK has some of the best signing and pedestrian crossing facilities in Europe Neverthe less as the demand for road space increases shouldn t we at least consider a more radical approach to traffic engineering Perhaps we could learn a few things from our overseas neighbours Robin Hutchinson email rhutchinson trl co uk TRULY INTERNATIONAL Copy Protection As a corporate member of FAST Federation Against Software Theft TRL is committed to reducing software theft wherever possible As part of this commitment we are introducing copy protection to some of our software packages This will help us to ensure that revenues due to us are collected and directed back into new and improved products We have worked hard to ensure that our new software registration process is as quick and easy as possible Even more Good News As we introduce this change product by product we are also merging our UK drive on the left and INTERNATIONAL drive on the right versions of ARCADY PICADY and OSCADY The products will be able to model both drive on the right and drive on the left situations In effect the previous UK and INTERNA TIONAL versions will be replaced with truly INTERNATIONAL versions for the first2. schemes was comparable in all re spects to that used for other modes of transport New software and associated guidance has been produced to implement the new approach which must now be used in all assessments of Trunk Road Schemes A letter giving full details of the new requirements was sent to all COBA 10 licence holders in March If you would like a copy of the letter please contact us Alternatively information about COBA 11 and QUADRO can be found on www trlsoftware co uk Essen tially the Guidance and Software consists of 1 Bridging Document to link between GOMMMS treatment of the environment accessibility and integration criteria and the advice given in Volume 11 of the DMRB 2 Transport Economics Note TEN replaces HEN No 2 DMRB Volume 13 Section 2 in giving the latest values of transport user time savings and vehicle operating costs recom mended by DETR 3 a Transport Users Benefit Appraisal TUBA Pro gram and User Manual A matrix based computer program capable of appraising highway and or public trans port fixed or variable matrix projects available from Mott MacDonald Ltd 48 52 Andover Road Winchester SO23 7BH b TUBA User Guidance to assist in the application of the TUBA program 4 a COBA 11 which updates COBA 10 to be compatible with TUBA b COBA Interim Guidance covers the changes made to COBA Downloads of all the above documents and further information can be found on www detr gov uk roads roa
3. Traffic Software News 12L Quarterly Issue No 18 June 2001 TRL Limited WEB Serving you better Website relaunched www trlsoftware co uk As part of our ongoing commitment to customer service the TRL Software Bureau has recently launched a new Web site Our aim was to produce a much improved site with greater ease of navigation and simple to use Comments so far have been favourable but we are always looking to improve The site will be updated regularly with the latest news from the Software Bureau and any current special offers New pages include a Forum for open discussion between users and a TRANSYT 11 demo download Ordering TRL software is now only a click away TRL Software Bureau k T a e i l ee i Eika r Fi i GL P SL LS E Er EnA 0 ee ee p 2 oe e We would be grateful for any comments so that this resource will be in tune with customer needs An additional page has already been added in response to a customer request for a brief description of all products an at a glance one line summary The site still has an exclusive section for our current maintenance users with more hands on information If you have any TRL products with current maintenance please contact the Bureau for a Username and Password then the latest information will always be at hand We hope you will take time to visit our site and tell us what you think TRANSYT 11 1 The latest version of TRANSYT was released on 26th March This n
4. a quick and easy way to find my way around the main help file often need to remind lam getting a Path access error occurs during installation of ARCADY OSCADY PICADY or ga What are the most recent figures for TRANSYT Stops and Delays TRANSYT Performance Index Pl coefficients Cost of delay W 1100 pence per pcu hour at 1999 prices Cost of stops K 200 per 100 stops 2p per pcu stop L Using PICADY 4 1 I have a situation where the on ghost island allows C A to flow freely most of the time however we wish to indicate that at certain times the C B movement will block C A If model this junction with a solid central reserve will this give me the desired situation There s no way to specify in PICADY 4 1 that blocking occurs only at certain times This would involve the interaction of several probabilities and would be unlikely to give accurate results As far as PICADY is concerned blocking either does or doesn t occur and this is with respect to how much physical space is available on the road rather than how often the blocking actually happens i e if there is room for vehicles to squeeze past waiting C B vehicles even with a single lane then blocking should be turned off If in your junction blocking occurs when there are more vehicles waiting to turn right than can utilise the ghost islands then whether blocking should be turned on or not would depend on when and why this happens If it happens
5. dnetwork heta hetagen htm Note URECA has effectively been replaced by TUBA and QUADRO will be updated later this year Mark Crabtree email mcrabtree trl co uk SHORT FLARES BACK IN FASHION Since our last issue PICADY 4 1 Revised flare model has been sent out to all of our existing maintenance holders See article inIssue15 For those who missed it the main differences are as follows improved modelling of short flares on a minor arm updated context sensitive help system and Application Guide AG23 Issue C tested to run on Windows 95 98 ME NT v4 2000 integration with our new feature rich VIEWER Version 2 CURRENT PROGRAM VERSIONS V5 0 AA 1 0 V4 1 AK 3 0 V4 01 AC 2 1 ARCADY 5 PICADY 4 OSCADY 4 INTERNATIONAL versions available TRANSYT 11 V11 1 AF 1 3 V1 2a V2 0a V 2 0 V 2 6 0 V 2 3 V 8 1d 4 0 1 02 BUNDLE MOVACOMM MOVASETUP CONTRAM 8 MAAP for Windows SafeNET PARC 2M amp PARC 2P Who s Who in Traffic Software Fenella Brown Fenella joined TRL in February 2001 and has a degree in Applied Maths and a PhD in Civil Engineering both from Birmingham University She has over 10 years experience of mathematical and laboratory modelling in the environmental sector Fenella will be working in the SCOOT team updating the database preparation software She will also be working on new developments within MOVA such as a cut down version using
6. e death rate is around three deaths per ten thousand registered vehicles or nine deaths per hundred thousand population The main causes of road accidents in Bahrain is believed to be due to excessive speed or crossing red lights The Bahrain Traffic Police will use the new cluster and density analysis techniques in MAAP to help determine accident hotspots where engineering improvements will have the most beneficial results Andrew Morrison COURSES SEMINARS amp WORKSHOPS 2001 TRANSYT WORKSHOP 2 DAY WORKSHOP IN OCTOBER Course Date 9 10 10 01 Course Fee 500 450 Maintenance Holders Places are limited 9 delegates for each course so if you are interested please register now to avoid disappointment All prices exclude VAT NEW DATES FOR FUTURE COURSES ARE TO BE ANNOUNCED PLEASE CONTACT DAWN GOULD ON TEL 01344 770399 FOR MORE INFORMATION SCOOT WORKSHOP 3 DAY WORKSHOP 4 6 9 01 Course Fee 650 VAT PLEASE CONTACT KATHRYN SMITH ON TEL 01344 770766 FOR MORE INFORMATION BUG BOX Toa TRANSYT 11 Release AC The release of TRANSYT 11 1 has cleared all previously reported faults in earlier releases of TRANSYT In particular the bug reported in TSN Issue 15 has been resolved COBA 11 release In March 2000 the Government published Guidance on the Methodology for Multi Modal Studies GOMMMS This described the approach needed to ensure that the appraisal of road
7. ew version has been supplied to all current users of TRANSYT 11 It has a number of improvements compared with the last release improved usability new button bar and minor revisions to data entry screens runs multiple files in batch mode tested to run on Windows 95 98 ME NT v4 2000 further integration with the feature rich Version 2 of the VIEWER program various bug fixes e g problems with modelling extremely large networks are now resolved Full details in the README file supplied with product N B Demo version now available for download from www trlsoftware co uk download htm Software Bureau TRL Software Bureau n T THRA A y A ND A a a a E ME EAE ee ee eee r TEPES EPA p uE ETEL TS Ere ein ee ee ee EEE pe pe ee ee ee ee eE D Tan a ee ee eee ee Se A pee pet mel fg coed Me pect poy p g commen cone Mans olala pomen ee ee ee p E a LE EE BE BB Be eee ee ee ee jp eel o Pey g Paa ae a aire ri ae ee ipl sett 2m 1A be oP Per es Aa aa aa i Turm E Eai as rs i eso Ea linni Eakas Imi ees mr ni Mie SS a EL d Se E be ln Nias Tt el ee Fs ee es es Le pod Se ks VET Se 2 os eee fre bm eed bo es weer O Ees eee ee bee eee el Bei ee E M ee ee T A E T PET FI Pry WN Ee pm M n gt imm eos Te 0 eee Ses a Eri En LILI IEN TE Ek ETE E mml EFJ bim cel dee eee Fee The TRL Stand prior to opening The Software Bureau would like to thank all of you who visited t
8. fewer detectors TRL Software Bureau Old Wokingham Road Crowthorne Berkshire RG45 6AU United Kingdom Tel 44 0 1344 770758 Fax 44 0 1344 770864 E mail softwarebureau trl co uk www trlsoftware co uk
9. he TRL stand at TRAFFEX It was nice to see so many familiar faces and to be able to put faces to familiar names The software product demonstrations this year SafeNet and MAAP generated significant interest As did the take home TRL software demonstration CDs and the booklets on offer We hope that any enquiries you had were answered to satisfac tion and those that requested further information have now received it If you should require further software information please do not hesitate to call the Software Bureau TRAFFIC CONTROL On a recent vacation in Europe noted that the instal lation and the use of traffic signals varies considerably between countries Whilst many of the towns and cities in Europe have wider streets than those in the UK it should still be possible to consider the techniques used elsewhere with the view of adopting the best value At traffic signals in the UK vehicle symbols and direction arrows are not permitted in the red aspect The word STOP was phased out some years ago and has not been replaced by any other alphanumeric characters In contrast direction arrows cycle leg ends and the worded instructions are frequently used on the continent and possibly in other parts of the world Their use is not permitted within the UK because it could be argued that they compromise safety in that the red aspect may not be so visible However do not know of any accident statistics to s
10. only during well defined peak hours for example then you should model the junction separately with without blocking for the various times of day If on the other hand FAQ continued it is variable then to be on the safe side you should model with blocking in order to cover the worst cases and expect that the predicted capacities will be underestimates It is also worth noting that when you model with blocking the predicted C ABD queue size will show the total number of vehicles queueing on Arm C if you combine this with the turning proportions you can estimate how many are rightturners and so whether blocking would occur in real life N B Modelling with solid islands would not make any difference since they mainly affect traffic leaving the minor arms and PICADY would still have no knowledge of how long the islands were Jim Binning and Graham Burtenshaw Email jbinning trl co uk gburtenshaw irl co uk MAAP in BAHRAIN April saw the installation of an Arabic version of MAAP for Windows version 4 in Bahrain The Bahrain Traffic Police will use MAAP to study historical patterns of accidents for forecasting trends There are around thirty two and a half thousand road accidents per annum in Bahrain two thousand of which are personal injury accidents This is quite a high rate considering the population of Bahrain is under six hundred and forty thousand and has less than two hundred thousand registered vehicles Th
11. time The programs will let you switch from drive on the left to drive on the right either by opening an existing data file the program will switch automatically to the correct orientation for that file or setting the orientation manually from Main Menu Options User Options A contextsensitive help system will be provided for both orientations and the correct one selected by the program automatically Use of these products is still subject to specific licence conditions for each registered site Jim Binning Email jbinning trl co uk QUARRY HAZARD INDEX SOFTWARE QHIS TRL has released Version 1 0 of its hazard score system for the assessment of the stability of rock slopes in quarries enabling an improved proactive approach to quarry rock slope risk assessment and management The QHIS system enables slope classification based on standard ised rapid field data collection input and subsequent parametric analyses Based on the hazard index slopes are classified in terms of required action enabling the prioritisation of funds The program is based on MS ACCESS 97 Sm application for i en B Windows Contact Software ure Bureau i a i aa WANG Welcome again to FAQ Here are some more Fre quently Asked Questions which you may find useful NOTE If you wish to discuss on line any particular issues regarding our software products with other users and with oursel
12. uggest whether these items are any more or less dangerous The same argument could also be given to the use of amber cycle aspects which are permitted in the UK and amber direction arrows that are not yet permitted in the UK The photograph above shows a set of signals mounted on a catinary in Budapest The photograph has not been edited and it is possible to make out the arrow in the red aspect Whilst in Hungary noted that secondary signals and stop lines are not always used It is considered that not installing these features is likely to cause enforcement problems and increase the amount of litigation How ever itis interesting to note that all of the observed vehicles did stop in such a position so that the driver was still able to see the signals In an attempt to give priority to specific vehicles have also seen the word BUS printed on the green lens in a set of signals These appear to work satisfactorily although the message may not be so clear if viewed from a distance or during wet weather In some countries vehicles are allowed to turn on a conflicting green pedestrian aspect on the understanding that the pedestrian has the right of way Despite the obvious increased risk of injury this technique is common in Europe In some countries a small set of signals are mounted on the primary pole at eye level It is also common for the starting amber to be omitted and at night for the traffic lights to automatically switch to a
13. ves at TRL we now have a Forum section set up within the members section of our TRL Software Web Site myself of how to measure say the geometric parameters required by ARCADY and PICADY Yes there is by pressing the F1 key the program will go straight to the most appropriate part of the help file If you need to search further there are many hyperlinks ones which are in the main body of the text references in the hard copy and others which appear at the bottom of many of the topics which go to any sub sections which may exist In the example you give you can press F1 from the Geometric Data entry form which will take you to the Data Input Chapter of the help file From there a hyperlink at the bottom of the page takes you to Appendix B which has details on how to measure the geometric parameters Alternatively the Search for help on option on the Help menu may prove just as effective E TRANSYT am installing the product from a CD ROM onto a PC with Windows 98 Press lt ignore gt If a message box appears saying that the product installation has been successful it has If not you need to look in your WINDOWS directory usually C WINDOWS and delete the CAB files associated with the product e g TRAN11_1 CAB VPICAD1 CAB ARC5_1 CAB etc and re install the product This problem arises when existing CAB files in your Windows directory interfere with the new installation Is there
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