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Title:

Potential Rural Expressway Intersection Safety Treatments

Accession Number:

01044964

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

A rural expressway is a high-speed, multi-lane, divided highway with partial access control. It is typically divided by a wide, depressed median and consists of both at-grade intersections and grade separated interchanges. Converting undivided rural two-lane highways to expressways is a popular highway safety improvement as expressways make passing easier and drastically reduce the likelihood of head-on and opposite direction sideswipe collisions. However, at-grade intersection collisions on rural expressways are reducing the safety benefits that should be achieved when converting rural two-lane highways to expressways. The underlying problem seems to be that expressway intersections present challenges to crossing and left-turning minor road drivers attempting to select gaps in the far-side expressway traffic stream. State Transportation Agencies (STAs) have experimented with several intersection safety treatments at problematic rural expressway intersections to improve their safety performance while avoiding costly grade separation. To assist STAs in this endeavor, this paper presents a “toolbox” of rural expressway intersection safety treatments with an emphasis on a few innovative, yet practical strategies which address the underlying problem and consequently have great potential to cost-effectively improve rural expressway intersection safety and operations. The implementation of these treatments is expected to help STAs achieve the safety benefits that should be associated with converting rural two-lane highways to expressways.

Monograph Accession #:

01042056

Report/Paper Numbers:

07-1018

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Hochstein, Joshua Lee
Maze, Thomas H
Welch, Tom Michael
Preston, Howard
Storm, Richard

Pagination:

18p

Publication Date:

2007

Conference:

Transportation Research Board 86th Annual Meeting

Location: Washington DC, United States
Date: 2007-1-21 to 2007-1-25
Sponsors: Transportation Research Board

Media Type:

CD-ROM

Features:

Figures (5) ; References (31) ; Tables (5)

Geographic Terms:

Nebraska

Subject Areas:

Highways; Operations and Traffic Management; Safety and Human Factors; I82: Accidents and Transport Infrastructure

Source Data:

Transportation Research Board Annual Meeting 2007 Paper #07-1018

Files:

BTRIS, TRIS, TRB

Created Date:

Feb 8 2007 5:37PM