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Title:

Large-Scale Injury Severity Analysis for Arterial Roads: Modeling Scheme and Contributing Factors

Accession Number:

01123246

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Recent initiatives to improve safety on major highway corridors have demonstrated the need to apply innovative methods to analyze arterial road safety performance. A large scale injury severity analysis for arterial roads in Florida was conducted using roadway and crash information. The purpose was to compare the reliability of different arterial road crash involvement modeling frameworks (combining crash locations versus traditional analysis by location) and to improve the understanding of contributing factors. In the first phase of the investigation, logistic regression models of all driver involvements and by roadway locations (i.e. segments and intersections) were developed and compared. The second phase involved an extension of these models, controlling by crash types, including rear-end, angle, and left turn. The results suggest a method for arterial road systematic analysis by modeling for all crashes combined complemented by two models of involvements at signalized intersections and on segments combined with access points (non-signalized intersections). The crash type models showed some possible safety strategies not clearly shown by the road entity models alone. Important contributing factors were significant, including driver age, gender, speeding, aggressive driving, seat belt use, alcohol or drug use, driver ejection, type of collision, type of vehicle and point of impact. Significant road related factors included speed limit Average Daily Traffic (ADT) per lane, access management class, land use, lane and sidewalk width, roadway lighting, curves, and friction characteristics. Suggested applications for future crash analysis and roadway design guidelines are discussed.

Monograph Accession #:

01120148

Report/Paper Numbers:

09-0348

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Nevarez, Alexis
Abdel-Aty, Mohamed A
Wang, Xuesong
Santos, Joseph B

Pagination:

23p

Publication Date:

2009

Conference:

Transportation Research Board 88th Annual Meeting

Location: Washington DC, United States
Date: 2009-1-11 to 2009-1-15
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures (2) ; References (23) ; Tables (6)

Geographic Terms:

Florida

Subject Areas:

Highways; Planning and Forecasting; Safety and Human Factors; I72: Traffic and Transport Planning

Source Data:

Transportation Research Board Annual Meeting 2009 Paper #09-0348

Files:

TRIS, TRB

Created Date:

Jan 30 2009 4:37PM