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Title:

Evaluation of Light Emitting Diode Outlined Traffic Signal Backplates at Intersections with Light Rail Lines

Accession Number:

01628215

Record Type:

Component

Abstract:

This paper presents an evaluation of the use of Light Emitting Diode (LED)-outlined traffic signal backplates for four treatment intersections in Houston, Texas. The backplates emit a red light around the perimeter of the traffic signal backplate when the traffic signal indication is red. The intended effect of the backplates was to reduce red light running violations and crashes on intersection approaches to Main Street, which contains an at-grade light rail line. Two before and after studies were conducted to determine the impacts on crashes, red light running (RLR) violations, and right turn on red (RTOR) movements, which are prohibited on this approach. From the analysis results, it was determined that the LED-outlined backplates appeared to reduce RLR and RTOR violations.

Supplemental Notes:

This paper was sponsored by TRB committee AHB50 Standing Committee on Traffic Control Devices.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-06757

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Tydlacka, Jonathan

Pagination:

16p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Photos; References (8) ; Tables

Geographic Terms:

Houston (Texas)

Subject Areas:

Highways; Railroads; Safety and Human Factors

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-06757

Files:

TRIS, TRB, ATRI

Created Date:

Dec 8 2016 12:46PM