The Influence Of Subway Construction On City Road Service Level

At present our country's urbanized level enhances largely, the city traffic problem becomes an important problem restricting its development. In order to resolve the problem effectively, many citise begin the subway construction. Whether subway project construction can proceed as planned and without a hitch depends on many factors, one of the key factors that guarantee the subway project being completed smoothly is that whether the traffic-relieving problem during the subway construction period can be solved effectively or not. During the period of subway construction, the road that subway line locating lost its traffic corridor effect,this made a lot of vehicles have to switch over to exercise gleam or makes a detour, which has very big effect to city transportation.Therefore, the study on the influence of subway construction on city road service level has an important theory value and practical significance.Basing on studing the theory of city road service level, the paper analysed the influencing factors of road capacity during the period of subway construction, and built the city road capacity model on the special case. At the same time, adopting the qualitative and quantificational method discussed the ascertaining influencial area problem of subway construction to city transportation, and suggested the studying technology route of the traffic stream changing condition on the front and back of subway construction. Then studied the changed degree of road service level on the front and back of subway construction using the contrast method. Adopted different traffic-relieving measures on the changed degree diversity of road service level,and also brought forward the traffic-relieving ideological line during the period of subway construction. Finally,it combined the concrete conditions of the second line of Xi An subway to analyse the influence of subway constrction to Xi An's road sevevice level.