Citation

McMonagle JC. Highw. Res. Board bull. 1953; 74: 46-53.

Copyright

(Copyright © 1953, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Traffic intersection accident studies are reviewed. Examples are presented of accident experience before and after installations of stop-go and flasher signals. Traffic- volume characteristics at selected intersections indicate that traffic is too heavy for stop signs, but does not quite warrant a separation of grades. A stop-go intersection studied indicates that the stop-go signal is not a cure- all. The probability is suggested that volumes are crowding the limit for this kind of control, and most of the intersections are exposed to the hazards created by roadside business development. Collision diagrams indicate that these isolated controls intrude unexpectedly into the high-speed characteristics of rural trunkline traffic. It is concluded that flashers are unequal to the task of assigning use when traffic volumes are high. It is concluded that special signals are needed to be designed for this service.