Carbon emissions reduction potentiality for railroad transportation based on life cycle assessment  

作　　者：Yintao Lu Tongtong Zhang Shengming Qiu Xin Liu Xiaohua Yu Hong Yao 

机构地区：[1]School of Environment,Beijing Jiaotong University,Beijing 100044,China [2]Intelligent Environment Research Center,Beijing Jiaotong University,Beijing 100044,China [3]Engineering Research Center of Clean and Low-carbon Technology for Intlligent Transportation,Ministry of Education,Beijing Jiaotong University,Beijing 100044,China [4]China Railiway Beijing Group Company Limited,Beijing 100089,China

出　　处：《High-Speed Railway》2023年第3期195-203,共9页高速铁路（英文）

基　　金：the financial support of the National Natural Science Foundation of China(U2268208);Science and Technology Program of China National Railway Group Co.,Ltd.(N2022×037).

摘　　要：This study addresses the comparative carbon emissions of different transportation modes within a unified evaluation framework,focusing on their carbon footprints from inception to disposal.Specifically,the entire life cycle carbon emissions of High-Speed Rail(HSR),battery electric vehicles,conventional internal combustion engine vehicles,battery electric buses,and conventional internal combustion engine buses are analyzed.The life cycle is segmented into vehicle manufacturing,fuel or electricity production,operational,and dismantlingrecycling stages.This analysis is applied to the Beijing-Tianjin intercity transportation system to explore emission reduction strategies.Results indicate that HSR demonstrates significant carbon emission reduction,with an intensity of only 24%-32% compared to private vehicles and 47%-89% compared to buses.Notably,HSR travel for Beijing-Tianjin intercity emits only 24% of private vehicle emissions,demonstrating the emission reduction benefits of transportation structure optimization.Additionally,predictive modeling reveals the potential for carbon emission reduction through energy structure optimization,providing a guideline for the development of effective transportation management systems.

关 键 词：Life cycle assessment High-speed-rail Transportation structure Intercity transportation Carbon emission reduction potentiality 

分 类 号：F532[经济管理—产业经济] X322[环境科学与工程—环境工程]