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Title:

Impact of Co-locating Regulatory and Directional Signs on Driver Performance

Accession Number:

01477056

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The use of intelligent transport systems is proliferating across the Australian road network, particularly on major freeways. New technology allows a greater range of signs and messages to be displayed to drivers. While there has been a long history of human factors analyses of signage, no evaluation has been conducted on this novel, sometimes dynamic, signage or potential interactions when co-located. The purpose of this study was to investigate drivers’ behavioral changes and comprehension resulting from the co-location of Lane Use Management Systems with static signs and (Enhanced) Variable Message Signs on Queensland motorways. A section of motorway was simulated, and nine scenarios were developed which presented a combination of signage cases across levels of driving task complexity. Two higher-risk road user groups were targeted for this research on an advanced driving simulator: older (65+ years, N=21) and younger (18-22 years, N=20) drivers. Changes in sign co-location and task complexity had little observed effect on driver comprehension of the signs and vehicle dynamics variables, including difference with the posted speed limit, headway, standard deviation of lane keeping and brake jerks. However, increasing the amount of information contained in one sign area (by co-locating several signs) increased participants’ gaze duration on the signs and resulted in potentially increased crash risk. With co-location of signs and without added task complexity, a single gaze was over 2s for more than half of the population tested for both groups, and up to 6 seconds for some individuals.

Supplemental Notes:

This paper was sponsored by TRB committee AND20 User Information Systems.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-3462

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Larue, Gregoire S
Schramm, Amy
Smith, Simon
Lewis, Ioni
Rakotonirainy, Andry

Pagination:

16p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

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

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-3462

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:41PM