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Assessing the VMT effect of ridesourcing services in the US

机译:评估美国郊游服务的VMT效应

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摘要

The net effect of ridesourcing (RS) services on vehicle miles traveled (VMT) is ambiguous. With 2017 US National Household Travel Survey data, this study measures and compares the heterogeneous VMT effects of RS across population groups with various levels of household vehicle access and RS usage. A propensity score matching method was implemented to match RS nonusers, occasional users, and frequent users based on observable sociodemographic traits. The results suggest that among drivers with household vehicle access, frequent RS users generate the least VMT, but occasional users actually generate more VMT. Those without a driver's license or a household vehicle generate lower VMT while use more transit, and increasing RS use uniformly increases their overall VMT generation. We estimate that overall, RS generated a net increase of 7.8 million daily VMT in the US, compared with a counterfactual case in which all NHTS 2017 respondents were non-users of RS.
机译:田间架(RS)服务在车里(VMT)上的净效应(VMT)是暧昧的。 通过2017年美国国家家庭旅游调查数据,这项研究措施并比较了卢比跨越人群的异质VMT效应,各级家务车辆访问和RS使用。 实施倾向得分匹配方法以基于可观察的社会阶乘特征匹配RS非用户,偶尔用户和频繁用户。 结果表明,在具有家庭车辆访问的驱动程序中,频繁的RS用户会产生最少的VMT,但偶尔的用户实际上会产生更多VMT。 如果没有驾驶执照或家庭车辆的那些,在使用更多的过境时会产生较低的VMT,并且增加卢比使用均匀地增加了整体VMT生成。 我们估计总体而言,与美国所有NHTS 2017受访者为卢比的非用户的反事实情况相比,卢比在美国净增加了780万VMT。

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