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首页> 外文期刊>Transportation Research >Accounting for traffic speed dynamics when calculating COPERT and PHEM pollutant emissions at the urban scale
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Accounting for traffic speed dynamics when calculating COPERT and PHEM pollutant emissions at the urban scale

机译：在计算城市规模的COPERT和PHEM污染物排放时考虑交通速度动态

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Coupling a traffic microsimulation with an emission model is a means of assessing fuel consumptions and pollutant emissions at the urban scale. Dealing with congested states requires the efficient capture of traffic dynamics and their conditioning for the emission model. Two emission models are investigated here: COPERT IV and PHEM v11. Emission calculations were performed at road segments over 6 min periods for an area of Paris covering 3 km(2). The resulting network fuel consumption (FC) and nitrogen oxide (NOx) emissions are then compared. This article investigates: (i) the sensitivity of COPERT to the mean speed definition, and (ii) how COPERT emission functions can be adapted to cope with vehicle dynamics related to congestion. In addition, emissions are evaluated using detailed traffic output (vehicle trajectories) paired with the instantaneous emission model, PHEM.
机译：将交通微观模拟与排放模型相结合是一种评估城市规模的燃料消耗和污染物排放的方法。处理拥挤状态需要有效捕获交通动态及其对排放模型的调节。这里研究了两种排放模型：COPERT IV和PHEM v11。在巴黎覆盖3 km（2）的区域内，在6分钟的时间内对路段进行了排放计算。然后比较最终的网络燃料消耗（FC）和氮氧化物（NOx）排放。本文研究了：（i）COPERT对平均速度定义的敏感性，以及（ii）COPERT排放函数如何适应与交通拥堵有关的车辆动力学。此外，使用详细的交通输出（车辆轨迹）与瞬时排放模型PHEM配对评估排放。

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