Citation

Thomas GB, Upchurch JE. ITE J. 1998; 68(5): 38-40.

Affiliation

Lee Engineering, Phoenix, AZ, USA

Copyright

(Copyright © 1998, Institute of Transportation Engineers)

DOI

unavailable

PMID

unavailable

Abstract

A study was conducted to determine the effects of increasing and decreasing volumes on overall vehicular delay, and the effects that forcing a cycle length other than the optimal cycle length has on delay and progression. The study is a project of the Arizona Department of Transportation which aims to the update signal timing and progression patterns for a system of 19 traffic signals along state highways 89A and 180 in Flagstaff, AZ. It was found that, given the same timing plan, decreases in traffic volumes result in a low average intersection delay. Given the same timing plan, even slight increases in traffic volumes can also result in significantly higher average intersection delays.

Language: en