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Title:

COMPUTER PROGRAM FOR ROADWAY LIGHTING

Accession Number:

00168079

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/03611981

Abstract:

The development of a computer program for the design and evaluation of fixed highway lighting is reported. The program calculates the illuminance, luminance, and disability veiling brightness in each lane at specified grid points on the road surface for regular, straight rows of luminaires, for a straight highway up to six lanes wide. Isoilluminance and isoluminance diagrams can also be obtained. The progam can be used as a design tool in the following way: For a chosen road geometry and a selected luminaire type, the designer can determine the performance of a proposed lighting design by calculating the relevant performance measures and comparing the results with the current accepted, or the proposed new standards. Many different designs can be rigorously evaluated in a short time. In conjunction with photometric measurements, the program was used to evaluate the performance of the existing design on the Toronto Bypass. Lighting designs based on calculations of luminance and disability veiling brightness are preferable to those based on illuminance because nighttime visibility is determined by the former rather than the latter. /Author/

Supplemental Notes:

Publication of this paper sponsored by Committee on Visibility. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

Monograph Accession #:

01411474

Report/Paper Numbers:

HS-022 157

Authors:

Jung, F W
Blamey, C

Pagination:

pp 25-32

Publication Date:

1977

Serial:

Transportation Research Record

Issue Number: 628
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309026539

Media Type:

Digital/other

Features:

Figures (10) ; References (10) ; Tables (1)

Old TRIS Terms:

Subject Areas:

Design; Highways; Safety and Human Factors

Files:

TRIS, TRB

Created Date:

Jan 30 1978 12:00AM

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