The Comprehensive Evaluation And Study On Zhengzhou Subway Transit Lines

The first subway in London was built since 1863, the subway construction process of the scope within the whole world speed up, the world has hundreds of cities have built and opened the subway and cities in mainland China which have opened the metro also reached 21 by the end of 2014, safety, fast and large capacity advantage that subway transportation itself inherently owns make it more and more to be recognized by people. In terms of zhengzhou subway traffic routes, through the evaluation of zhengzhou subway traffic system operating condition, the site in route space type of supply and demand and network characteristics of routes planning, we can find out the current problems existed in zhengzhou subway transit lines and put forward the corresponding optimization strategy, which is an important way to crack the zhengzhou congestion, pollution enhance the level of public transportation development and strengthen the urban competitiveness.Papers rely on the urban space morphology, cooperative co-evolution, spatial topology and the balance between supply and demand as the support, evaluating the running state of the zhengzhou subway transit lines, site type of supply and demand and the planning network characteristics with the help of DEA, space syntax and GIS-AHP. The results showed that: 1) The operating conditions, the current operation efficiency of zhengzhou subway transportation system compared with other cities in our country is only at a relatively high level of development, the small scale of zhengzhou subway become a main constraint factors on operation efficiency that improved, meanwhile, there are different levels of input redundancy and output deficiency condition existed in zhengzhou subway traffic system. 2) The site space type of demand and supply, the erqi square station and zhengzhou railway station belong to demand less supply type, the city sports center, zhengzhou east station and purple mountain station space reach the balance between supply and demand, the rest of the sites are the type of demand which is less than the supply. 3) Network characteristics, the zhengzhou subway lines planning has fully considered the big traffic demand in some areas, which especially are located in nearly subway lines planning, but space accessibility and the traffic flow of part lines, the overall coordination and carried by the circuit layout don't match.On this basis, except the excess of relative scale of zhengzhou subway lines,absolute size of zhengzhou subway lines becomes a main factor on the operation efficiency, the position of part site set up lack of considering space supply and demand characteristics, zhengzhou subway planning lines still need further perfect. Aiming at the existing problem of zhengzhou subway lines, put forward by expanding line construction scale, making the rational allocation of inputs, digging potential output, grasping the supply and demand, planning new lines and other measures to optimize zhengzhou subway lines.