Dynamics Simulation-Based Safety Evaluation for Highway Geometric Design

An evaluation system which comprehensively considers the multi-factors of driver, vehicle, and highway elements, can objectively reflect the operation state of the road. The paper established a simulation system based on comprehensive consideration of driver-vehicle-highway system (DVH). The true operation status of vehicle was simulated using vehicle dynamics software ADAMS (automatic dynamic analysis of mechanical systems). By reverse study to the sensitive indexes, highway geometric design parameters could be safely optimized. The purpose of simulation was to find out the sensitive indexes of vehicle dynamics parameters that affected driving safety. A simulation case showed that six dynamics indexes were sensitive to the changes of curve radius, including lateral acceleration, roll angle, steering wheel torque, and steering wheel angular velocity, yaw rate, and sideway force coefficient. Finally, highway geometric design can be achieved by calibrating thresholds of dynamics indexes and safety evaluation.

• Record URL:
  • https://doi.org/10.1061/9780784483053.147
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784483053
• Supplemental Notes:
  • © 2020 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Wang, Lu
  • Cheng, Jian-Chuan
• Conference:
  • 20th COTA International Conference of Transportation Professionals
  • Location: Xi’an , China
  • Date: 2020-8-14 to 2020-8-16
• Publication Date: 2020

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1750-1762
• Monograph Title: CICTP 2020: Transportation Evolution Impacting Future Mobility

Subject/Index Terms

• TRT Terms: Geometric design; Highway design; Highway safety; Safety analysis; Simulation; Vehicle dynamics
• Identifier Terms: ADAMS (Computer program)
• Subject Areas: Design; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01767446
• Record Type: Publication
• ISBN: 9780784483053
• Files: TRIS, ASCE
• Created Date: Mar 22 2021 10:34AM