Urban public transport is a public

Urban public transport is a public welfare undertaking closely related to millions of peoples’
production and lives. It has a direct relationship with the livelihood of people and the development of
social economy. During the “11th Five-Year Plan” period, China’s national economy has grown rapidly with about 2.5% higher than the speed of planning objectives that the urbanization level increased
continuously, and the process of motor speeded up. By the end of 2010, China’s urbanization rate has
reached 49.68%, and the urban population of 660 million. During the “11th Five-Year Plan” period, the
annual increase of urban population was about 1,500 people, the traffic flow of urban areas had increased
dramatically, the contradiction between transportation supply and demand had become increasingly
prominent, and the pressure of traffic infrastructure continuously raise (Liu, 2011). Urban traffic
congestion, safety accidents and environmental problems have seriously affected social and economic
development, and become an important bottleneck restricting sustainable urban development. Several
major cities have reached an agreement that giving priority to the development of urban public transport
is an effective way to solve the problem of traffic congestion and promote the sustainable development of
traffic. As China’s capital, Beijing early implemented the strategy of giving priority to the development of
public transport, and also has made some achievements. Taking Beijing as an example, using elastic
analysis theory, this paper discusses the effect of the measures of low fares in the strategy of giving
priority to the development of public transport, so as to provide references for the relevant departments to
make decisions.