DEVELOPMENT AND PERFORMANCE EVALUATION OF AN ITS-READY MICROSCOPIC TRAFFIC MODEL FOR IRVINE, CALIFORNIA

The research in this paper presents the detailed development and on-line evaluation of a microscopic traffic flow model for the city of Irvine in Southern California. This effort is the first stage of evaluating micro-simulators in terms of their ability to model and analyze Intelligent Transportation Systems (ITS) under faster-than-real-time conditions. "Paramics," a particularly promising ITS-capable advanced traffic flow simulator and visualization tool was utilized as one of an array of newly emerging ITS-capable simulation tools and applied to the Irvine network as part of a staged effort to model the much larger Southern California network. The driver and vehicle models and parameters were developed to reflect UK driver and vehicle characteristics. The procedure used to calibrate these parameters to reproduce local U.S. traffic behavior is explained: A model of a conventional US freeway/arterial network in Southern California was built and its parameters calibrated using on-line field data. The calibrated models are validated, both at the section and network levels, and evaluated relative to their potential application in Advanced Traffic Management and Information Systems (ATMIS). Based on obtained results, the calibrated model performed well during validation on a freeway link. On the full network, the vehicle release mechanism showed some time-lag in releasing demand onto the network. This is potentially due to stacking of vehicles in memory before adequate headways are found on the road to release the vehicles. Although the problem itself is simple, its effects on the results were notable. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/34620932
• Corporate Authors:

  Taylor & Francis

  4 Park Square, Milton Park
  Abingdon,   United Kingdom  OX14 4RN
• Authors:
  • Abdulhai, B
  • Sheu, J-B
  • Recker, W W
• Publication Date: 2002

Language

• English

Media Info

• Features: References;
• Pagination: p. 79-102
• Serial:
  • ITS Journal
  • Volume: 7
  • Issue Number: 1
  • Publisher: Taylor & Francis
  • ISSN: 1024-8072
  • Serial URL: http://firstsearch.oclc.org/journal=1024-8072;screen=info;ECOIP

Subject/Index Terms

• TRT Terms: Calibration; Demand; Evaluation and assessment; Freeways; Intelligent transportation systems; Networks; Simulation; Traffic flow; Types of roads by network; Urban areas
• Uncontrolled Terms: Traffic networks
• Geographic Terms: United States
• ITRD Terms: 6171: Calibration; 285: Demand (econ); 9020: Evaluation (assessment); 8735: Intelligent transport system; 2752: Motorway; 1054: Network (traffic); 9103: Simulation; 671: Traffic flow; 313: Urban area; 8122: USA
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00934934
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 4 2002 12:00AM