Research On The Measurement And Benefit Of The Urban Rail Transit Public Welfare Character

People throughout the world have a common understanding in 21th century that the basic outlet of urban traffic is prior development of urban public transportation system with the rail transit serving as the backbone. The urban rail transit is characteristic in large capacity, rapidness and on schedule, low environmental pollution, so it takes great effect in solving city transit jams, improving city space structure, protecting city environment and promoting city sustainable development.The construction and operating investment of urban rail transit is high, so the government is necessary to aid it because of its social benefit and external economic benefit in long period. But it doesn't mean government-monopolized. In other words, commercial management doesn't mean no government investment. Only by proper government investment and comprehensive application of state laws can we mobilize the enthusiasm of enterprise, citizen and foreign investors. Finally achieve the commercial management of urban rail transit. View on the current situation of urban rail transit's construction and operation in each city, the conclusion is that most of them are partially subsidized by government. This paper makes some correlative study on the extent of investment and subsidy from government.The paper begins with the analysis of quasi-public products property of urban rail transit project and its characteristics in the angle of economics. Then the paper gives out theoretical basis for government subsidy by analysis of quasi-public product's demand and supply in equilibrium theory.Secondly, the contradiction of marketability and commonweal is presented in the angle of welfare economics. The author constructs commonweal measurement model through introducing duality theory, and proves its practicability by a sample.Finally, the paper states commonweal benefit of different beneficial body in urban rail transit separately, and proposes different benefit restitution measures according to different beneficial object, which provides theoretical basis for investment capital resources from government in urban rail transit project. The paper aims to promote a "two wins" Relationships between beneficial bodies and urban rail transit enterprise, and realizes benign circle for urban rail transit supply.