Research On Traffic Energy Efficiency Measurement Of Urban Metro Based On SBM-Window DEA Model

Urban subway transportation can provide convenient travel conditions for residents,but it also brings environmental pollution such as exhaust gas and wastewater.In the context of building an environmentally friendly society,the measurement of urban subway transportation energy efficiency has become an urgent problem to be solved.This thesis takes the measurement of urban subway transportation energy efficiency as the research object,defines the concept of subway transportation energy efficiency,analyzes the difficulties in the measurement of urban subway transportation energy efficiency,and combines the SBM model that considers undesirable output with the window DEA analysis model,To construct a new SBM model that considers undesired output—window DEA model,compared and analyzed the energy comprehensive efficiency,energy economic efficiency,and energy non-economic efficiency of 15 cities with the energy consumption data of subway transportation in 15 cities in China as samples Identify the problems existing in the energy utilization of urban subway transportation and propose countermeasures.The conclusions of this thesis show that:First of all,in recent years,the construction speed of urban subway transportation in my country has been relatively fast,and the scale of investment has increased year by year.However,the energy consumption of urban subway transportation is huge,and there is no suitable standard for urban subway energy consumption.Secondly,according to the concept of urban subway transportation energy efficiency,the SBM-window DEA analysis model constructed in this thesis can measure the energy efficiency of urban subway transportation;finally,the empirical analysis results show that:from the perspective of the comprehensive efficiency of subway transportation energy,the sample Among the cities,Beijing,Nanjing,and Shenzhen are fully effective.The comprehensive efficiency of subway transportation energy in other cities is relatively high,and it is slowly increasing.From the perspective of the utilization efficiency of various types of energy,urban subway transportation has the highest utilization efficiency of electric energy.The second is water energy.The utilization efficiency of gas energy is the lowest and shows a clear fluctuation trend.The reason for the obvious fluctuation is that the efficiency of using gas in the north and south cities is relatively large;finally,the pollution efficiency generated by the energy use of urban subway transportation increases year by year,and wastewater pollution The generated efficiency is higher,while the generated efficiency of sulfur dioxide gas pollution is lower.