Does driving restriction affect air quality: evidence from Guangzhou city in China

Zheng Pan, Xuxian Zhang and Chengzheng Li

Applied Economics Letters, 2025, vol. 32, issue 3, 357-364

Abstract: Driving restrictions are implemented by metropolises worldwide to curb traffic congestion and vehicle emissions. This paper investigates the effect of a plate-based driving restriction in Guangzhou City, China, where drivers with nonlocal vehicles are allowed to flexibly select restriction periods based on their travel needs. Using a difference-in-difference method and high-frequency data, we find that the air quality in the restricted area experiences no improvement after the policy implementation, suggesting a limited impact of this mild driving restriction policy on air quality.

Date: 2025
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DOI: 10.1080/13504851.2023.2269627

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