详情

原文传递 Policies for Use of Changeable Message Signs in Highway Work Zones; Final rept. Sep 97-Dec 98

题名：	Policies for Use of Changeable Message Signs in Highway Work Zones; Final rept. Sep 97-Dec 98
作者：	Soot, S.; Metaxatos, P.
关键词：	Changeable message signs; Construction site traffic control; Traffic control devices; Construction site signs; Construction sites; Sign warrants; Area traffic control; Traffic safety; Highway safety; Evaluation; Criteria; Literature review; Surveys; Warning signs; Traffic control warrants
摘要：	This study represents a continuing effort in the State of Illinois toward the understanding and improvement of traffic safety at highway work zones through the use of Portable Changeable Message Sign (PCMS) systems. These systems are programmable supplementary traffic control devices that display messages and provide information and instrutions to the traveling public approaching work zone activities. The objectives of this study were sixfold: (1) develop warrants for the use of PCMS systems on Illinois Department of Transportation (IDOT) highway projects; (2) evaluate PCMS systems as a safety improvement; (3) develop criteria for the number, placement and spacing of PCMS systems in advance of highway work zones; (4) determine optimal message length, optimal duration of a given message and optimal message type; (5) evaluate the effectiveness of 'real-time' information displayed on PCMS systems and the process required to transmit real-time messages from the source to the CMS; and (6) identify and discuss the human factors which impact the foregoing.
总页数：	222p
报告类型：	科技报告