Journal
TRANSPORT POLICY
Volume 115, Issue -, Pages 62-74Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tranpol.2021.11.005
Keywords
Non-local traffic restriction policy; Elevated expressway; Vehicle emission; Local and regional air pollution; Air quality monitoring network
Categories
Funding
- National Planning Office of Philosophy and Social Science [16ZDA048]
- National Natural Science Foundation of China [11672176]
- State Key Laboratory of Rail Traffic Control and Safety of Beijing Jiaotong University [RCS 2019K008]
Ask authors/readers for more resources
Traffic restriction policy can effectively decrease the concentrations of local and regional primary gaseous pollutants, but has limited impact on mitigating regional particulate pollution.
Traffic restriction policy (TRP) is common practice to alleviate urban congestion and air pollution. However, effects of TRP for non-local vehicles and elevated expressways on local and regional air quality are understudied. Using air pollutant data collected by ground-based national and roadside environmental monitoring stations and field measurements, comparative research design and regression discontinuity analysis were performed to investigate the local and regional variations in air pollutant concentrations with and without the TRP. Results indicate that traffic restriction significantly decreased the local and regional concentration levels of primary gaseous pollutants (e.g., NOX and CO), particularly under more stringent TRP during China International Import Expo, which also brought an ozone increase due to the reduced effect of NOX titration. However, the TRP only exhibited limited impacts on mitigating regional particulate pollution. These findings suggest that the air quality improvements due to the non-local TRP highly depend on the types of pollutants and the spatial locations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available