Citation

Buckholtz J. IMSA J. 2002; 40(6): 24-27.

Copyright

(Copyright © 2002, International Municipal Signal Association)

DOI

unavailable

PMID

unavailable

Abstract

This article describes various steps and decision-trees for determining which types of intersection control are called for in specific settings and then sets up parameters to choose among the various options for each. It includes a flow-chart for the evaluation procedure. The first test is whether an intersection meets the basic requirements for having traffic signals because it has registered a certain level of congestion or accidents. If it does merit signal control, will installation of signals cause interference in signal and traffic coordination? All possible options for an intersection of two two-lane roads were analyzed by running the SIDRA computer program including signals, stop signs and a roundabout. As volumes rise, stop sign controls become more problematic for coordination and require signals or roundabouts.