通行条件对公共汽车碳排放的影响

Impact of Traffic Conditions on Bus Carbon Emissions

针对中国公共汽车能耗与碳排放水平高的现状,基于车辆性能稳定的前提,研究通行条件对碳排放的影响。首先,对工况和通行条件进行划分。然后,以上海市北安跨线为例,在调研数据的基础上,统计各种交通干扰对应的工况并计算其碳排放水平,发现拥堵的作用效果最显著,其次是交叉口。最后,分析载客量对碳排放的影响,空载、半载、满载情景下碳排放水平近似线性地轻微增加,但人均碳排放量显著减少。

Concerning the current high level of energy consumption and carbon emissions of buses in Chi- na, this paper investigates the impact of traffic conditions on bus carbon emissions given the stable perfor- mance of vehicles. The paper first classifies bus performance and traffic conditions into several groups. Taking Bei＇ an Line in Shanghai as an example, the paper further estimates the bus performance under dif ferent traffic impacts as well as the corresponding carbon emissions based on survey data. Results indicate that traffic congestion is the most significant affecting factor, followed by the intersection factor. Finally, through analyzing the impact of bus passenger load on carbon emissions, this paper concludes that carbon emission exhibits a slight linear increase from no-load, half-load to full-load scenarios, but the per capita carbon emission shows a significant decrease.