| Harbin is located in northeast China,is an important manufacturing base in China,is also a historical and cultural city,at the same time as a tourist hot spot city,its unique ice and snow culture every year to attract a large number of tourists from home and abroad,so Harbin transportation system needs to meet a large number of traffic needs.Urban public transportation systems play an important role in the traffic system,its development in Harbin city faces many opportunities and challenges,on the one hand,the development of social economy in Harbin,leading to the rapid increase of traffic demand,but limited road resources caused by high on "the wall city" in Harbin,prompting Harbin vigorously develop public transportation,city and the public demand for public transport development is urgent;On the other hand,the climate characteristics of cold city,make more vulnerable in Harbin in the transportation resources and the environment resources,public transport planning and construction and operation management face more challenges,how to optimize the transit network layout and adjustment,and establish the cold city bus network evaluation method and index,is now more popular research problem.This paper investigates the status quo of public transport in the main urban area of Harbin,including the status quo of bus vehicle development,bus network development and bus station development,and analyzes the passenger flow and bus travel characteristics of bus routes.According to the survey and analysis results,the main urban area of Harbin was divided into traffic zones,traffic demand was predicted,according to the proportion of bus sharing,bus passenger flow demand and bus network scale were predicted.On the basis of bus demand forecast,the principle and overall plan of bus network layout are determined,and the optimization model of bus network layout is established.The evaluation method and index of urban bus network in cold region are proposed,and the scheme of Harbin urban bus network is evaluated. |