Simulation-Based Dynamic Traffic Assignment Modeling for Urban Expressway Network: A Case Study of Suzhou Expressway in China

Expressway networks undertake huge demands of urban travel, and its traffic condition directly influences the level of service of the urban road network. This study proposes the application of a simulation-based dynamic traffic assignment (DTA) model on Suzhou inner ring expressway network in China. The total length of the analyzed expressway network is 24.6 km with approximately 4,500 veh/h for each direction during peak hours in 2017. The model is implemented by DTALite, and the process of model building including data quality control, calibration of traffic flow parameters, time-dependent OD estimation, network preparation, model validity checking, and validation of model results. Validation results indicate that the DTA model can represent the time-dependent changing traffic conditions with acceptable accuracy. Results of the scenario test show that the model can represent and evaluate daily and special traffic conditions quantitatively and reliability.

• Record URL:
  • https://doi.org/10.1061/9780784482292.266
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784482292
• Supplemental Notes:
  • © 2019 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Zhao, Po
  • Wang, Xiang
  • Wu, Ge
  • Wenjuan, E
• Conference:
  • 19th COTA International Conference of Transportation Professionals
  • Location: Nanjing , China
  • Date: 2019-7-6 to 2019-7-8
• Publication Date: 2019-7

Language

• English

Media Info

• Media Type: Web
• Monograph Title: CICTP 2019: Transportation in China—Connecting the World

Subject/Index Terms

• TRT Terms: Expressways; Mathematical models; Origin and destination; Peak hour traffic; Traffic characteristics; Traffic flow; Urban highways
• Geographic Terms: Suzhou (China)
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 01713710
• Record Type: Publication
• ISBN: 9780784482292
• Files: TRIS, ASCE
• Created Date: Aug 13 2019 9:26AM