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Can transportation infrastructure reduce haze pollution in China?
Chenggang Li1, Tao Lin2, Zhifei Zhang3
1School of Big Data Application and Economics, Guizhou University of Finance and Economics, Guiyang, 550025, China.
Environmental Science and Pollution Research International
|October 10, 2021
Summary
Transportation infrastructure significantly impacts haze pollution, with highways worsening it and railways improving air quality. These effects vary regionally, offering insights for green transportation policies.
Area of Science:
- Environmental Science
- Transportation Geography
- Spatial Econometrics
Background:
- Traffic emissions are a primary driver of haze pollution.
- Limited research exists on the dynamic, spatial impacts of transportation infrastructure on haze.
- Understanding these relationships is crucial for effective environmental policy.
Purpose of the Study:
- To investigate the dynamic spatial impact of transportation infrastructure on haze pollution in China.
- To analyze the underlying mechanisms and regional heterogeneity of these effects.
Main Methods:
- Utilized annual data from 30 Chinese provinces (2000-2017).
- Employed a dynamic spatial Durbin model to assess spatial spillover effects.
- Examined impacts across different regions (eastern, central, western).
Main Results:
- Transportation infrastructure exhibits significant spatial spillover effects on haze pollution.
- Highway traffic increases haze pollution (short and long term); railway traffic decreases it.
- Regional heterogeneity observed: highway impacts are consistently negative, while railway impacts vary.
Conclusions:
- Transportation infrastructure influences haze through economic scale, industrial structure, and technological progress.
- Highway density exacerbates haze across all regions; railway density's effect is mixed.
- Policy recommendations focus on leveraging transportation infrastructure for haze reduction and promoting green transportation.
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