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iVMS corridors modelling and calibration in Aimsun
Abstract
Microscopic traffic simulation
Safe, cheap and effective to evaluate Intelligent Transportation Systems.
• Model calibration is the key to obtain meaningful results (GEH < 5).
• Floating vehicle data (e.g. Smartphone) supplement traditional data from fixed detectors.
• Optimization techniques support the modeller to tune and calibrate the model parameters.
Modelling process
• Model iVMS road network
• Implement road junctions (signalized intersections, roundabouts etc.)
• Define traffic demand
• Determine origin destination matrix from traffic counts using Genetic Algorithm.
• Define control plans for traffic lights
• Calibrate Model (Driver behavior)
* Average journey time (Siemens-Stratos)
* Vehicle speed profiles (smartphone)
iVMS network simulation
• Developed a reliable microscopic traffic simulation model (GEH 1.43)
• A tool to investigate what-if scenarios
Opportunities for research
• Intelligent and connected traffic signals
• Advance driver assistant systems in urban environment
• Traffic congestion and environment
• Fuel consumption & emission modelling
Opportunities for traffic management
• Traffic management strategies e.g. SCOOT MOVA
• Identify critical links and junctions on the road network
• Roads, junctions, bus stop improvement schemes
• Investigate public transport policies
• Impact of parking
• Incidents management and recovery
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