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Title:

Safety Evaluations of Aggressive Driving on Motorways Through Microscopic Traffic Simulation and Surrogate Measures

Accession Number:

01373610

Record Type:

Component

Abstract:

The majority of road accidents, 75-90%, are related to driver errors of one form or another. Aggressive driving is the most common driver error which results into unnecessary fatalities, injuries and frustrations. This paper addresses the safety evaluations of aggressive driving through use of microscopic traffic simulation and safety surrogate measures. A motorway was simulated and calibrated in VISSIM with vehicle classes of normal. The proportion of aggressive drivers was made to increase from a base model of all normal vehicles to a maximum of 15% with an increment of 3% at a time. Four different scenarios of driving aggression were investigated, namely: (1) Close following or tailgating, (2) Weaving in and out through traffic, (3) Speeding or driving too fast for condition, and (4) Combined aggression of close following, weaving through traffic and speeding practiced all at the same time. Surrogate Safety Assessment Model (SSAM) was used to evaluate the safety of each scenario by comparing them against a base model of all normal drivers. Quantitative results on the measures of safety performance of the scenarios were presented in terms of percentage increase in simulated vehicle conflicts of probable crashes or near crashes. The severity of the resulting crashes and also crash risk involvement of aggressive drivers was also discussed separately for each form. Drivers who speed, follow closely, weave through traffic and their combination were found to be involved in vehicle conflicts by much as 2.36, 6.16, 7.02 and 10.36 times more than normal drivers respectively.

Supplemental Notes:

This paper was sponsored by TRB committee ANB20 Safety Data, Analysis and Evaluation

Monograph Accession #:

01362476

Report/Paper Numbers:

12-2011

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Habtemichael, Filmon G
de Picado Santos, Luis

Pagination:

17p

Publication Date:

2012

Conference:

Transportation Research Board 91st Annual Meeting

Location: Washington DC, United States
Date: 2012-1-22 to 2012-1-26
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Candidate Terms:

Aggressive driving

Subject Areas:

Highways; Safety and Human Factors; I83: Accidents and the Human Factor

Source Data:

Transportation Research Board Annual Meeting 2012 Paper #12-2011

Files:

TRIS, TRB

Created Date:

Feb 8 2012 5:07PM