TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

An Alternative Supplemental Guide Signing Procedure for Urban Freeways

Accession Number:

01154406

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Properly displaying messages of Major Traffic Generators (MTGs) on guide signs along highways will efficiently direct motorists to their destinations and reduce drivers' frustration. One feasible way to place such information is to use independent Supplemental Guide signs (SG), which are warranted by federal and state guidelines but are constrained by available space. With the increasing signing demand along urban freeways, spaces to accommodate such independent SG are normally very limited. In this paper, an alternative way of guide signing for MTGs is proposed and tested. The dependent Supplemental Plaques (SP) are placed on top of the Advance Guide (AG) and Exit Direction (ED) signs. A slide show test was conducted to evaluate and compare drivers' readability and comprehension to MTG messages on dependent SP and independent SG that appeared to subjects for a predefined time. The test also compared the impacts of dependent SP and independent SG on AG and ED signs. The correct response percentage was the major measurement of effectiveness of the test. A posterior questionnaire was conducted to collect the subjects' preferences of dependent SP and independent SG. Test results show that dependent SP performed as well as independent SG only in the case of single sign arrays. Posterior survey results indicate that drivers preferred dependent SP over independent SG in either single sign arrays or multiple sign arrays. It is recommended to place, as an alternative, the dependent SP on top of AG and ED signs for MTGs at urban freeway interchanges when spaces are limited.

Monograph Accession #:

01147878

Report/Paper Numbers:

10-2643

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Qiao, Fengxiang
Wang, Hui
Yu, Lei

Pagination:

23p

Publication Date:

2010

Conference:

Transportation Research Board 89th Annual Meeting

Location: Washington DC, United States
Date: 2010-1-10 to 2010-1-14
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Maps; Photos; References (19) ; Tables (4)

Subject Areas:

Highways; Operations and Traffic Management; I73: Traffic Control

Source Data:

Transportation Research Board Annual Meeting 2010 Paper #10-2643

Files:

TRIS, TRB

Created Date:

Jan 25 2010 11:16AM