ANALYSIS AND MODELING OF MEASURED DELAYS AT ISOLATED SIGNALIZED INTERSECTIONS
ANALYSIS AND MODELING OF MEASURED DELAYS AT ISOLATED SIGNALIZED INTERSECTIONS
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DOI：
10.1061/(asce)0733-947x(2002)128:4(347
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发表时间：
2002-07
期刊：
影响因子：
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通讯作者：
R. Mousa
中科院分区：
文献类型：
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作者：
R. Mousa
车辆延误是评价信号交叉口运行状况的一个很好的工具。本文提出了一种测量和分析交通信号停车延误和加减速延误的方法。现场数据在12条屏蔽线(或站点)上收集，定义了一个随机选择的车辆被追踪约355米的“系统”。在屏蔽线上收集的穿越时间被用来估计选定车辆的车速、加速度和延误。结果表明，“停止”车辆的减速和加速长度变化范围很大，减速和加速率也是如此。平均减速-加速延迟估计为11.8 S/小时，这与文献中报道的大多数值符合得很好。由于车辆不停车造成的延误仅占总延误的7%左右，可以忽略不计，而由停车车辆造成的延误约占路口总延误的93%。关系b..。
Vehicular delay is an excellent tool for evaluating the operation of signalized intersections. This paper presents a methodology for measuring and analyzing stopped delay as well as acceleration and deceleration delay at a traffic signal. Field data were collected at 12 screen lines (or stations) defining a “system” where randomly selected vehicles are traced for about 355 m. Crossing times collected at the screen lines were utilized to estimate vehicle speed, acceleration, and delay of selected vehicles. Results indicated that deceleration and acceleration lengths of “stopped” vehicles varied over a wide range, as did the deceleration and acceleration rates. The average deceleration–acceleration delay was estimated at 11.8 s/veh, which is in good agreement with most reported values in the literature. The delay due to nonstopped vehicles comprises only about 7% of the total delay and can be neglected, while delay estimated from stopped vehicles is about 93% of the total intersection delay. Relationships b...