Study On The Traffic Service Level Evaluation Of Xi’an Metro Line2Based On Extension Theory

With the continuous development of social economy and accelerating urbanization process,urban traffic problems become increasingly serious,buses and private cars caused the road congestion and traffic congestion,serious impact on the traffic of the city and development.The main way to improve this situation is to raise the road utilization rate,due to the limited urban ground space,can make full use of urban underground space of underground rail traffic construction,can alleviate the ground traffic problem. Taking xi’an metro as the main research object,along with the opening of xi’an metro line2operations,for passengers,a problem to be solved is the stand or fall of metro traffic service level problem,under the precondition of metro traffic a better level of service to attract more passengers.Based on extension theory,this paper uses contains analysis,divergence analysis and the conjugate analysis analysis principle,together with the present situation of xi’an subway operation,establish a convenient and comfortable index,coverage index, profitability index for the evaluation index system of multilevel criterion layer,on the basis of the evaluation index system,using the matter-element analysis method and priority degree evaluation method,and taking the xi’an metro line2as an example for empirical analysis,calculated the transportation service level evaluation results-xi’an metro line2traffic service level is good.This thesis on xi’an metro line2traffic service level evaluation in the process of study,uses the questionnaire survey method,qualitative analysis and quantitative analysis method,matter-element analysis and priority degree evaluation method etc,for traffic service level of xi’an metro line2is relatively objective analysis and evaluation,reasonable evaluation results are obtained.The evaluation index system can be applied to other urban public transport service level evaluation research.