1. PLATFORM ASSIGNMENT AND SIMULATION MODELS Henk Taale AVV Transport Research Centre

2. Contents What is PLATOS? History Activities Organisation Projects and results Data for models Evaluation

3. What is PLATOS? True Public Private Partnership (PPP) Government, Consultants, Universities Problems –current models inadequate to answer relevant questions –data collection and formats Goal: development of modelling system and knowledge transfer

4. History 1995: first talks 1996: start document by three partners 1997: business plan PLATOS 1998: signing the agreement by 10 partners 1998-2001: doing projects 1999: change financial structure 2001: evaluation

5. Activities User requirements Specification modelling system Research Data handling and transfer between models Model development Validation Knowledge transfer

6. Organisation –steering committee –programming workgroup –project groups Financial structure –fund for projects –money and man hours

7. Projects and results Guidelines for validation of models Dynamic OD estimation program Traffic flow during congestion Consequences for models of new transport policy Standardisation measurement data for models

8. Knowledge transfer Presentations Symposium for Dutch model developers and users Website (www.oag.nl/platos) Articles

9. Data for models (1) Growing need for data for models: input, calibration and validation Expanding monitoring –1300 km motorways and other main roads –7 traffic management centres –1 traffic information centre Variety in systems and data formats

10. Data for models (2) Project phases –state of the art data availability and needs –defining format for measurement data –software development for conversion –software development for data management, analysis and visualisation

11. Data for models (3) Data availability –monitoring on main road network: several systems with different format –monitoring on urban roads: not done frequently, but possible with traffic signal controllers –other systems: parking systems, GIS, weather information, road works

12. Data for models (4) Data standardisation system measurement data data conversion converted data input for models

13. Data for models (5) Data needs –national/regional models: network, OD matrix, travel motives, user classes, demand –dynamic models: network, OD matrix, flows, speeds, travel times, routes –microscopic models: network, following behaviour, lane changing behaviour

14. Data for models (6) Developments –architecture for traffic management –gathering, exchanging, converting and storage of data Phase 2: defining format for measurement data for use with dynamic models Will the project continue?

15. Evaluation More results than most PPP’s Less results than hoped for (too ambitious?) Lessons learned: –a shared problem is very important –good project management is invaluable –good research program is needed Future of PLATOS unsure

16. Colofon ir. H. Taale AVV Transport Research Centre Tel.: +31 10 282 5881 Fax: +31 10 282 5644 E-mail: h.taale@avv.rws.minvenw.nl