Driver perception response time during the signal change interval
Goh, Pin Kai
Wong, Yiik Diew
Date of Issue2004
School of Civil and Environmental Engineering
The importance of perception response time (PRT) values for traffic signal change interval design, and the need to monitor the design PRT value, are challenges facing transportation professionals. However, current methods used to validate the design PRT value from on-site observational studies have failed to yield convincing proof that the 1 second design value is adequate. A modification to on-site data capture and extraction, using a transitional zone (TZ), is used to overcome this deficiency. The TZ allows the systematic identification and exclusion of those drivers who have time to delay their responses. Their inclusion in past studies inflated PRT values. Their exclusion in this study provides a more accurate value.
Applied health economics and health policy
This article has been reproduced with permission from Adis, a Wolters Kluwer business (see Goh PK, Wong Y-D. Driver Perception Response Time During the Signal Change Interval. Applied Health Economics & Health Policy. 2004;3(1):9-15.for the final published version). (C) Adis Data Information BV 2004. All rights reserved.