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Title:

Understanding the Relationship Between Crash Severity, Change in Velocity, and Driver’s Reaction
Cover of Understanding the Relationship Between Crash Severity, Change in Velocity, and Driver’s Reaction

Accession Number:

01625680

Record Type:

Component

Abstract:

A driver’s reaction may influence the risk and severity of road crashes. Even though many studies have analyzed the factors influencing drivers’ injury severity, little is understood about the relationship between driver’s reaction, delta–v and driver’s injury severity. This study develops a modelling framework to better understand this relationship. Three models, replicating driver’s reaction, change in velocity (delta-v) and the driver’s injury severity, are developed to analyze the hierarchy of factors influencing these three components of a crash. The data used for this estimation consists of two-vehicle crashes extracted from the United States National Automotive Sampling System-Crashworthiness Data System (NASS-CDS) for the period between 2009 and 2014.The results show that as drivers’ age increases the possibility of a reaction before the crash. This possibility is also increased when there are adverse surface conditions, non-straight horizontal curves, non-level vertical curves and on local roads. Reacting before a crash reduces the delta-v of the crashes and consequently the injury severity of the driver. The modelling results confirm that a higher delta-v is associated with higher occupant injury severity. Future research should focus on a more in depth understanding of factors influencing driver inattention to reduce occupant injury severity. In addition, the results of this research suggests that improving vehicle technologies such as ’Auto Emergency Braking System’, can reduce severity of road crashes.

Supplemental Notes:

This paper was sponsored by TRB committee ANB10 Standing Committee on Transportation Safety Management.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-04306

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Al-Taweel, Hayder Mohammed
Young, William
Sobhani, Amir

Pagination:

20p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References (48) ; Tables

Subject Areas:

Highways; Safety and Human Factors

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-04306

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Dec 8 2016 11:38AM