Research On The Network Planning Of Urban Railway Transport

Nowadays the urban railway transport develops rapidly in China. Then it is important to choose a rational scale and appropriate layout which have important effects on satisfying the passenger transport at present and accelerating sustainable development of the city. A common problem that the city which is going along with URT construction faces is how to plan an urban railway transport network scientifically and rationally.Summaries in the thesis are followed:First, the basic planning theory of URT is discussed, and the problems in nowadays planning work are pointed out. All these are upon the research on literatures and experience in practice. The current methods of confirming the rational scale of URT network are analysed. And the merits and defects are discussed of each method.Secondly, the modes of tranffic-flow prediction in common use are discussed, especially the use of "four-stage method". Each stage, such as trip-generation, trip-distribution, mode split, traffic assignment, is separately analysed. A method suitable for forecasting the passengers' volumes of URT is propsed, based on the analysis of the characteristics of URT passengers.Thirdly, there must be more than one planning project in practice, so it is necessary to evaluate every project in order that the decision-makers can chose the best one. Then an evaluation index system about URT schemes is established, which includes all the needs of sociality, economy and technic towards a constructing program. The comprehensive evaluation can be conducted using Analytic Hierarchy Process and Grey Correlation Degree. An example is presented to practice this method.Finally, an example is operated to validate the models and methods in the thesis.