Influence Range and Spatial Distribution Characteristics of Crashes at the Tunnel Entrance and Exit

The entrance and exit (E&E) of a tunnel are typical crash prone segments. Thus, this paper is focused on exploring the influence range of the traffic risk at the tunnel E&E. Furthermore, the accident spatial distribution characteristics of the E&E are also studied to discover the accident mechanism. Driving risk characteristics of the E&E segments have been studied by analyzing the traffic speed/visual adaptability and accident distribution statistics. The study was carried out on the 2,552 traffic accidents of 41 tunnels of different lengths in Guangdong Province. Segments 200 m before and after the E&E were found the influence range of the traffic risk at the tunnel E&E. Furthermore, cubic polynomial curve was found suitable to describe the spatial distribution law of the traffic risk at tunnel E&E. The research results can provide a basis for the safety optimization design and safety management of tunnel openings.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 4776-4784
  • Monograph Title: CICTP 2020: Transportation Evolution Impacting Future Mobility

Subject/Index Terms

Filing Info

  • Accession Number: 01768489
  • Record Type: Publication
  • ISBN: 9780784483053
  • Files: TRIS, ASCE
  • Created Date: Dec 9 2020 3:07PM