Subways and Road Congestion

被引：46

作者：

Gu, Yizhen ^{[1
]}

Jiang, Chang ^{[2
]}

Zhang, Junfu ^{[3
]}

Zou, Ben ^{[4
]}

机构：

[1] Peking Univ, HSBC Business Sch, Beijing, Peoples R China

[2] Baidu Inc, Maps Open Platform Dept, Beijing, Peoples R China

[3] Clark Univ, Dept Econ, Worcester, MA 01610 USA

[4] Michigan State Univ, Dept Econ, E Lansing, MI 48824 USA

来源：

AMERICAN ECONOMIC JOURNAL-APPLIED ECONOMICS | 2021年 / 13卷 / 02期

关键词：

REGRESSION DISCONTINUITY DESIGNS; DRIVING RESTRICTIONS; FUNDAMENTAL LAW; PUBLIC-TRANSIT; URBAN;

D O I：

10.1257/app.20190024

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

We study whether subways alleviate road congestion by examining 45 subway line launches in China and by using detailed data on road speed. Our difference-in-differences estimation finds that in the first year after a subway line is launched, rush hour speed on nearby roads increases by about 4 percent. The effect is most prominent in initially congested roads and declines over distance to the new subway line. Evidence on road speed is corroborated with substitution patterns among modes of transportation. Using auxiliary data from Beijing, we calculate that the time savings for each automobile or bus commute from faster speed is worth US$0.10.

引用

页码：83 / 115

页数：33

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