Does travel closer to TOD have lower CO2 emissions? Evidence from ride-hailing in Chengdu, China
Does travel closer to TOD have lower CO2 emissions? Evidence from ride-hailing in Chengdu, China
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DOI：
10.1016/j.jenvman.2022.114636
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发表时间：
2022-02-03
影响因子：
8.7
通讯作者：
Du, Huibin
中科院分区：
文献类型：
--
作者：
Gao, Jiong;Ma, Shoufeng;Du, Huibin
尽管公交导向型发展（TOD）有助于减少对私家车的依赖和碳排放，但现有研究在很大程度上忽视了它对网约车使用的影响。利用成都市大量的网约车出行数据，在分解水平上考察了地铁邻近度对网约车出行公里数（VKT）及相应CO2排放量的影响。同样，采用调节多元回归分析方法，研究了上下车时地铁距离对网约车VKT的交互作用。结果表明，在上下车位置，地铁附近每增加一公里，叫车出行的VKT减少0.315 km/0.273 km，从而减少0.063 kg/0.055 kg的CO2排放。此外，上车接近VKT变化的影响是负缓和由下车接近，反之亦然。研究结果表明，“T（Transit）”有利于碳减排，但“D（Development）“的区域不平衡问题有待解决。
Despite contributions to reducing private car dependency and carbon emissions, impacts of transit-oriented development (TOD) on ride-hailing usage are largely overlooked in existing studies. Using massive ride-hailing trips data in Chengdu, the influence of subway proximity on vehicle kilometers traveled (VKT) and corresponding CO2 emissions of ride-hailing is examined at the disaggregated level. Similarly, moderated mul-tiple regression is adopted to investigate the interaction effects of subway proximity at pick-up and drop-off on VKT of ride-hailing. Results suggest that for each additional kilometer in subway proximity at pick-up/drop-off position, the VKT of ride-hailing trips is reduced by 0.315 km/0.273 km, resulting in the CO2 emission reduction of 0.063 kg/0.055 kg. Moreover, the influence of pick-up proximity on VKT change is negatively moderated by drop-off proximity and vice versa. Our results suggest that the carbon emission reduction can benefit from "T (Transit) " however the problem of regional imbalances in "D (Development) " needs to be addressed.