Development of Traffic Safety Evaluation Method based on Simulated Conflicts at Signalized Intersections

In this study simulated conflicts were used to pre-evaluate the safety performance of signalized intersections. A signalized intersection was selected and the traffic operation was simulated in VISSIM simulation system according to the field traffic information. Then the output vehicle trajectory file was analyzed by Surrogate Safety Assessment Model (SSAM) to identify simulated conflicts. Simulated conflicts generated by the VISSIM simulation and identified by SSAM were compared to the traffic conflicts measured in the field, and a two-stage calibration procedure was carried out to improve the goodness-of–fit between these two conflicts. After calibration and validation, the remedial measure for this intersection, reducing the speed limit from 60 km/h to 50 km/h, were applied in the VISSIM simulation model. Comparing the simulated conflicts under different speed limits, it was found that the safety performance of this intersection was improved after reducing the speed limit.

• Record URL:
  • https://doi.org/10.1016/j.sbspro.2013.08.100
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S187704281302226X
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18770428
• Supplemental Notes:
  • © 2013 Huanyun Zhou and Fei Huang
• Authors:
  • Zhou, Huanyun
  • Huang, Fei
• Conference:
  • 13th COTA International Conference of Transportation Professionals (CICTP 2013)
  • Location: Shenzhen , China
  • Date: 2013-8-13 to 2013-8-16
• Publication Date: 2013-11-6

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 881-885
• Serial:
  • Procedia - Social and Behavioral Sciences
  • Volume: 96
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 1877-0428
  • Serial URL: http://www.sciencedirect.com/science/journal/18770428/53
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Evaluation; Signalized intersections; Speed limits; Traffic conflicts; Traffic safety; Traffic simulation
• Identifier Terms: Surrogate Safety Assessment Model; VISSIM (Computer model)
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control;

Filing Info

• Accession Number: 01503819
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 21 2014 3:23PM