Citation

Courage KG, Wattleworth JA, Price GC. Transp. Res. Rec. 1974; 503: 13-24.

Copyright

(Copyright © 1974, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This paper presents some guides for use in the design of traffic signal installations that require multiphase signalization. The procedures permit the signal designer to consider all phasing patterns and to select the optimal pattern. Design tables are presented for use at moderately important intersections. Knowing the critical lane volume for each movement through the intersection permits the designer to select from the tables the required g/c ratio for each phasing pattern. The pattern that requires the smallest g/c ratio is the optimal pattern. For more critical intersections, a more sophisticated design guide is presented. It is a computer program that calculates the required g/c ratio for each signalization pattern. It also computes the vehicular delay that would be obtained under different equipment systems (single-dial pretimed, 3-dial pretimed, and several types of traffic-actuated). It then provides a cost-effectiveness comparison of the alternative equipment configurations. Examples of the use of the tables and the computer program are included.

Language: en