Scenario analysis of urban transport emission mitigation potential in Shanghai based on LEAP

As urbanization and motorization accelerates in Shanghai, emissions of urban road transport are considered to rise rapidly in the next decades. The Shanghai government has made a series of mitigation measures to slow this trend, which can be divided into five classes, Vehicle Control(VC), Transit Priority(TP), Fuel Economy and Emission Standard(FE&ES), Efficient Management(EM) and New Energy Automobile(NEA). In this study, relevant government documents from 1995 to 2012 were reviewed and quantified. On this basis, seven scenarios were set and analyzed by the Long-range Energy Alternatives Planning System to evaluate their emission mitigation potential. The results show that FE&ES is the most effective way to limit CO2 emission growth by reducing 7.4 MtCO2e in 2030, and the NEA in reducing emissions of other air pollutants, such as NOx, CO and PM10. Furthermore, the comparison between Reference Scenario(RS) and Combined Mitigation Scenario(CMS) indicates that emissions from urban road transport in Shanghai will peak before 2030 if all of the measures are carried out strictly, and per capita urban road transport CO2 emission can be stabilized around 0.57 tCO2e from 2020, still below the global average.