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Title:

The Impact of Narrow Lane on Safety of the Arterial Roads

Accession Number:

01593460

Record Type:

Component

Abstract:

This study investigates the impact of lane width on safety for urban arterial roads. The Generalized Linear Model with Negative Binomial distribution was used to estimate the model, which is selected by Akaike information criterion (AIC). Using lane width with two level of categories (9~10ft, 11~12ft), the research found interaction effects of lane width with average annual daily traffic (AADT), presence of shoulder and on-street parking. This finding suggests that the impact of AADT on safety can be either positive or negative depending on lane width, and the impact of lane width on safety increases where shoulder or on-street parking exists. Therefore, the authors may consider narrowing lanes to provide additional spaces to reduce crash rates or address specific issues such as traffic congestions without significant increases on crashes.

Supplemental Notes:

This paper was sponsored by TRB committee ANB25 Standing Committee on Highway Safety Performance.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-6703

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Lim, Hyeonsup
Han, Lee D
Khattak, Asad J

Pagination:

12p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Design; Highways; Planning and Forecasting; Safety and Human Factors

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-6703

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 6:54PM