Rail transit plays a key role in mitigating transportation system carbon emissions.Accurate measurement of urban rail transit carbon emission can help quantify the contribution of urban rail transit towards urban tran...Rail transit plays a key role in mitigating transportation system carbon emissions.Accurate measurement of urban rail transit carbon emission can help quantify the contribution of urban rail transit towards urban transportation carbon emission reduction.Since the whole life cycle of urban rail transit carbon emission measurement involves a wide range of aspects,a systematic framework model is required for analysis.This research reviews the existing studies on carbon emission of urban rail transit.First,the characteristics of urban rail transit carbon emission were determined and the complexity of carbon emission measurement was analyzed.Then,the urban rail transit carbon emission measurement models were compared and analyzed in terms of the selection of research boundaries,the types of greenhouse gas(GHG)emissions calculation,and the accuracy of the measurement.Following that,an intelligent station was introduced to analyze the practical application of digital collaboration technology and energy-saving and carbon-reducing system platforms for rail transit.Finally,the urgent problems and future research directions at this stage were discussed.This research presents the necessity of establishing a dynamic carbon emission factor library and the important development trend of system integration of carbon emission measurement and digital system technology.展开更多
1Overview of the CR Fuxing high-speed EMUseries The independently developed CR(China Railways)Fuxing high-speed EMU(electric multiple unit)series by China currently comprises three speed-level product series:CR400,CR3...1Overview of the CR Fuxing high-speed EMUseries The independently developed CR(China Railways)Fuxing high-speed EMU(electric multiple unit)series by China currently comprises three speed-level product series:CR400,CR300,and CR200,as shown in Fig.1.The EMUs demonstrate adaptability to various geographical and climatic conditions,including high plateaus,extremely cold regions,strong wind and sandy environmental conditions,with a designed service life of 30 years.The 350 km/h speed level of the CR-Fuxing series primarily consists of two platforms,namely CR400AF and CR400BF,both of them are electric multiple units with distributed power.Each 8-car formation is configured with a 4M4T arrangement,divided into two traction units(Tc+M+Tp+M).展开更多
基金supported by Beijing Natural Science Foundation(J210001)Natural Science Foundation of Hebei Province(E2021210142)Tianjin Natural Science Foundation(21JCZXJC00160).
文摘Rail transit plays a key role in mitigating transportation system carbon emissions.Accurate measurement of urban rail transit carbon emission can help quantify the contribution of urban rail transit towards urban transportation carbon emission reduction.Since the whole life cycle of urban rail transit carbon emission measurement involves a wide range of aspects,a systematic framework model is required for analysis.This research reviews the existing studies on carbon emission of urban rail transit.First,the characteristics of urban rail transit carbon emission were determined and the complexity of carbon emission measurement was analyzed.Then,the urban rail transit carbon emission measurement models were compared and analyzed in terms of the selection of research boundaries,the types of greenhouse gas(GHG)emissions calculation,and the accuracy of the measurement.Following that,an intelligent station was introduced to analyze the practical application of digital collaboration technology and energy-saving and carbon-reducing system platforms for rail transit.Finally,the urgent problems and future research directions at this stage were discussed.This research presents the necessity of establishing a dynamic carbon emission factor library and the important development trend of system integration of carbon emission measurement and digital system technology.
文摘1Overview of the CR Fuxing high-speed EMUseries The independently developed CR(China Railways)Fuxing high-speed EMU(electric multiple unit)series by China currently comprises three speed-level product series:CR400,CR300,and CR200,as shown in Fig.1.The EMUs demonstrate adaptability to various geographical and climatic conditions,including high plateaus,extremely cold regions,strong wind and sandy environmental conditions,with a designed service life of 30 years.The 350 km/h speed level of the CR-Fuxing series primarily consists of two platforms,namely CR400AF and CR400BF,both of them are electric multiple units with distributed power.Each 8-car formation is configured with a 4M4T arrangement,divided into two traction units(Tc+M+Tp+M).
