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http://hdl.handle.net/10397/90690
Title: | Assessing carbon dioxide emissions of high-speed rail : the case of Beijing-Shanghai corridor | Authors: | Chen, P Lu, Y Wan, Y Zhang, A |
Issue Date: | Aug-2021 | Source: | Transportation research. Part D, Transport and environment, Aug. 2021, v. 97, 102949 | Abstract: | This paper provides an ex-post assessment of net carbon dioxide (CO2) emissions of the Beijing-Shanghai high-speed rail (HSR) by including both mode substitution and traffic generation effects with a life-cycle approach. We are among the first authors to examine the emissions effects of a long-haul HSR and to consider the effects of avoided infrastructure expansion and vehicle manufacturing due to traffic diversion. We find that avoided infrastructure expansion plays a limited role in offsetting CO2 emissions from the construction of an HSR infrastructure, but the reduced demand for passenger vehicles can offset a larger share of emissions from the manufacturing of HSR rolling stock. Initially, too much traffic was diverted from ordinary-speed rail (OSR) to HSR, increasing emissions at the operation stage. As traffic diverted from road and air increased, the net emissions at the operation stage turned negative, offsetting emissions from infrastructure construction and vehicle manufacturing. | Keywords: | Carbon dioxide emissions High-speed rail Life-cycle assessment Mode substitution |
Publisher: | Pergamon Press | Journal: | Transportation research. Part D, Transport and environment | ISSN: | 1361-9209 | DOI: | 10.1016/j.trd.2021.102949 |
Appears in Collections: | Journal/Magazine Article |
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