PLATFORM ASSIGNMENT AND SIMULATION MODELS Henk Taale AVV Transport Research Centre.
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Transcript of PLATFORM ASSIGNMENT AND SIMULATION MODELS Henk Taale AVV Transport Research Centre.
Contents
• What is PLATOS?
• History
• Activities
• Organisation
• Projects and results
• Data for models
• Evaluation
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
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
Activities
• User requirements
• Specification modelling system
• Research
• Data handling and transfer between models
• Model development
• Validation
• Knowledge transfer
Organisation
• Organisation– steering committee– programming workgroup– project groups
• Financial structure– fund for projects– money and man hours
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
Knowledge transfer
• Presentations
• Symposium for Dutch model developers and users
• Website (www.oag.nl/platos)
• Articles
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
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
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
Data for models (4)
• Data standardisation
system
system
measurement data
measurement data
data conversion
converted data
input for models
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
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?
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
Colofon
ir. H. Taale
AVV Transport Research Centre
Tel.: +31 10 282 5881
Fax: +31 10 282 5644
E-mail: [email protected]