Identification of Secondary Crashes in Large-Scale Highway Networks

Secondary crash (SC) occurrences are non-recurrent in nature and lead to significant increase in traffic delay and reduced safety. National, state, and local agencies are investing substantial amount of resources to identify and mitigate secondary crashes, reduce congestion, related fatalities, injuries, and property damages. Though a relatively small portion of all crashes are secondary, their identification along with the primary contributing factors is imperative. The objective of this study is to develop a procedure to identify SCs using a static and a dynamic approach in a large-scale multimodal transportation network. The static approach is based on pre-specified temporal and spatial thresholds while the dynamic is based on shockwave principles. The procedure is applied in the State of Tennessee and results show that the dynamic approach can identify secondary crashes with better accuracy and consistency.

Supplemental Notes:
- This paper was sponsored by TRB committee ANB10 Transportation Safety Management.
Corporate Authors:
Transportation Research Board

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Washington, DC United States 20001
Authors:
- Sarker, Afrid A
- Naimi, A
- Mishra, Sabyasachee
- Golias, Mihalis M
- Freeze, Brad
Conference:
- Transportation Research Board 94th Annual Meeting
- Location: Washington DC, United States
- Date: 2015-1-11 to 2015-1-15
Date: 2015

Language

English

Media Info

Media Type: Digital/other
Features: Figures; References; Tables;
Pagination: 17p
Monograph Title: TRB 94th Annual Meeting Compendium of Papers

Subject/Index Terms

TRT Terms: Crash causes; Crash injuries; Highway safety; Secondary crashes; Traffic congestion
Geographic Terms: Tennessee
Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I80: Accident Studies;

Filing Info

Accession Number: 01550188
Record Type: Publication
Report/Paper Numbers: 15-2363
Files: TRIS, TRB, ATRI
Created Date: Jan 16 2015 8:29AM