Study of LightGuard System on Pali Highway, Honolulu Hawaii

In response to a number of pedestrian fatalities in the 1990s in the vicinity of the intersection of Pali Highway with Jack Lane and Akamu Place, the Hawaii Department of Transportation (HDOT) installed experimental in-pavement flashing lights for several months until a traffic signal and channelization changes are implemented. At the time of this project, the in-pavement flashing lights were deemed experimental because they were not approved as a traffic control device, i.e., they were not listed in the Manual on Uniform Traffic Control Devices (MUTCD) of the U.S. DOT. Because of the experimental nature of this application, close monitoring and before-after evaluation of traffic measure were needed. The University of Hawaii, Department of Civil Engineering was contracted to conduct the evaluation study. This report summarizes the results of the evaluation.