The Research Of The City Public Transportation Wire Optimization

In recent years, many large cities are making great efforts to look for effect measures to improve the city traffic condition. The objective of the optimization of public transport network is to make the public transport system produce the best benefit by using modern theory of transportation planning and modern computing techniques. The optimization process is to make the public transport network distribution reasonable by optimizing and combining the existing public transport capacity. It lies on the existing city road system and public transport capacity. The optimization of public transport network is an economical and effective measure to solve the traffic congestion and the difficulty in riding in large cities. It is also a measure that is easy to put in practice.Base on public transportation network optimizing theories and methods from other countries and regions, this paper analyzes the public transportation network in Xi'an. Moreover, after analyzing the main goal and principles of and restricting public transportation network optimizing, some routine optimizing methods and models are put forward. What is more, according the goal of this research and considering the influence factors, in this paper, optimizing model is built, discussion on the possibility of colony algorithm in public transportation network optimizing process is carried out, optimizing methods base on colony algorithm is put forth and public transportation in partial Xi'an urban area has been optimized, and achieved the good effect.