气候变化领域集成服务门户(CCPortal): Impact of high-speed rail on road traffic and greenhouse gas emissions

CCPortal

DOI	10.1038/s41558-021-01190-8
	Impact of high-speed rail on road traffic and greenhouse gas emissions
	Lin Y.; Qin Y.; Wu J.; Xu M.
发表日期	2021
ISSN	1758-678X
起始页码	952
结束页码	957
卷号	11 期号:11
英文摘要	Carbon emission reduction in the transportation sector is essential in the global mitigation effort, and a large-scale public transport system has the potential to be an effective instrument. High-speed rail (HSR) is one such example, yet it is unclear how much reduction in road traffic results from new rail routes. Using the difference-in-differences method, we show that new HSR routes in China lead to a 20.5 log-point reduction in the number of passenger vehicles and a 15.7 log-point reduction in freight vehicles running on parallel highways. These reductions were not seen on ordinary national roads. These effects translate into an annual reduction of 14.76 million tons of CO2 equivalent of GHG emissions or 1.75% of GHG emissions in China’s transport sector. This mitigation effect mainly comes from the substitution of highway goods transport with the conventional railway instead of the direct replacement of highway passenger transport with HSRs. The environmental benefit of HSR in China has not been fully realized because of the thermal-dominated electricity supply. Our further projections suggest that in greener electricity conditions, the HSR in China can substantially contribute more to the reduction in GHG emissions from the transport sector. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237191
作者单位	Department of Economics, Division of Environment and Division of Social Science, HKUST, Clear Water Bay, Kowloon, Hong Kong; Department of Real Estate, NUS Business School, National University of Singapore, Singapore, Singapore; Hang Lung Center for Real Estate and Department of Construction Management, Tsinghua University, Beijing, China
推荐引用方式 GB/T 7714	Lin Y.,Qin Y.,Wu J.,et al. Impact of high-speed rail on road traffic and greenhouse gas emissions[J],2021,11(11).
APA	Lin Y.,Qin Y.,Wu J.,&Xu M..(2021).Impact of high-speed rail on road traffic and greenhouse gas emissions.Nature Climate Change,11(11).
MLA	Lin Y.,et al."Impact of high-speed rail on road traffic and greenhouse gas emissions".Nature Climate Change 11.11(2021).