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原文传递 Methodology for Control Delay Estimation Using New Algorithm for Critical Points Identification

题名：	Methodology for Control Delay Estimation Using New Algorithm for Critical Points Identification
其他题名：	Benekohal,R.F.(1992)."Real-time delay measurement and intersection analysis system."Proc.,4th Int.Conf.on Microcomputers in Transportation,ASCE,New York,285-296.
正文语种：	英文
作者：	N. (C)elar
关键词：	Signalized intersection;Control delay;Deceleration-acceleration rates;Threshold values
摘要：	Control delay, as a primary indicator of signalized intersection performance, is commonly estimated using analytical models due to difficulty of field measurements. This paper presents a new methodology for control delay estimation using vehicle speed profiles obtained by a global positioning system (GPS) device. An algorithm developed for critical delay points identification is based on threshold values of two parameters: average acceleration and deceleration rate, and a newly established parameter, phase duration. Based on the created algorithm, a five-step procedure is suggested for individual vehicle control delay calculation. The methodology was successfully tested on 112 sample runs at two signalized intersections. Detailed analysis of the acceleration and deceleration processes has shown that these two processes have different characteristics and effects on delay. In contrast to other studies, it was found that acceleration-deceleration delay depends on variation of acceleration delay and cannot be considered as constant. A slightly lower delay value was obtained by the suggested methodology, indicating that the new parameter could eliminate delay that is not affected by traffic signals.
出版年：	2018
论文唯一标识：	P-72Y2018V144N02005
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/JTEPBS.0000110
期刊名称：	Journal of Transportation Engineering
拼音刊名(出版物代码)：	P-72
卷：	144
期：	02
页码：	33-40