基于车辆微观行为的瓶颈路段交通流能耗研究

通过分析瓶颈路段车辆的微观行为，基于汽车燃油消耗微观模型提出了瓶颈路段的燃油消耗计算方法，并运用仿真软件进行验证，在此基础上探讨了瓶颈路段的燃油消耗规律。结果表明车辆经过瓶颈路段时增加的燃油消耗主要来源于车辆进入瓶颈时的减速、怠速及加速过程，车辆由瓶颈驶向下游路段的燃油消耗没有因为加速工况的存在而大于无瓶颈对照路段的燃油消耗，且交通量越大交通流燃油消耗受瓶颈的影响越大。

Traffic Flow Energy Consumption in Bottleneck Section Based on Vehicle Microscopic Behavior

The microscopic behaviors of motor vehicles in bottleneck sections were analyzed. The fuel consumption calculation method of motor vehicles in bottleneck sections was proposed based on the mi- cro-model of fuel consumption and the method was verified by simulation software. On this basis, the fuel consumption rules of motor vehicles in bottleneck sections were explored. The result showed that the in- creased fuel consumption caused by the bottleneck sections was mainly from the deceleration, idle and ac- celeration process when the motor vehicles entered the bottleneck; when motor vehicles went through the bottleneck to downstream segment, the fuel consumption in the acceleration process was not more than the fuel consumption in non-bottleneck control sections; the larger the traffic volume, the greater the impact of fuel consumption under the influence of bottleneck.