An extended car-following model considering vehicular gap fluctuation

被引：71
|
作者：
Yu, Shaowei [1 ]
Shi, Zhongke [1 ]
机构：
[1] Northwestern Polytech Univ, Shaanxi Prov Engn Lab Transportat Safety Supervis, Xian 710072, Shaanxi, Peoples R China
来源：
MEASUREMENT | 2015年 / 70卷
关键词：
Car-following behaviors; Vehicular gap fluctuation; The adaptive cruise control system; Fuel consumptions and exhaust emissions; VELOCITY DIFFERENCE MODEL; TRAFFIC FLOW MODEL; FUEL CONSUMPTION; CONTINUUM MODEL; DYNAMICAL MODEL; FULL VELOCITY; STABILITY; DRIVERS; VEHICLES; SPEED;
D O I：
10.1016/j.measurement.2015.03.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To explore and evaluate the effects of vehicular gap fluctuation on roadway traffic mobility, fuel economy and exhaust emissions, we first analyzed the linkage between vehicular gap fluctuation and the following car's acceleration or deceleration with the measured car-following data, and then developed an extended car-following model considering vehicular gap fluctuation based on the full velocity difference model. Finally, numerical simulations are conducted to explore how vehicular gap fluctuation affects car's velocity, acceleration, vehicular gap, fuel consumptions and exhaust emissions. The results show that vehicular gap fluctuation has significant effects on the dynamic characteristics, fuel consumptions and exhaust emissions of traffic flow, and that considering vehicular gap fluctuation in modeling traffic flow system can improve the stability of traffic flow, increase fuel efficiency and reduce exhaust emissions. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：137 / 147
页数：11
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