The Research On The Traffic Impact Analysis About The City Basic Construction Project

Traffic Impact Analysis(TIA) studies the internal relationship between city and traffic from the point of microcosmic, reveal their regulation, and grope for how to assort with the relationship between them, and TIA is the effective means which deal with city transportation. All over the world a lot of interrelated research indicate, some problems include how to decide threshold of TIA and impact area etc are confronted and left unsolved in practical circumstances, and theory analysis, so thorough and systematic research on it is necessary. This main object of this research will found the TIA system thought which adapt our country's situation, and take emphases on the key problems in TIA—the threshold and impact area. First, found the TIA system thought which adapt our country's situation, by studying the TIA process of the countries abroad , especially America and the relationship between traffic and land use. Second, identificate the Threshold For TIA,Threshold For TIA is one of the key problems of carrying on TIA. This paper regards the scale of constructio n project as the threshold for TIA,sets up the feed-backing models against land used for four stages to define the threshold for TIA, by starting with the reason of the traffic -the project,on the basis of analyzing and researching about the traffic demand and traffic capacity of the area. Lastly,identificate the study area. The decision of study area depends on the location and development size of land use in a large extent, usually it includes the local area and the surround area which suffer from a large amount of traffic impact. By analyzing the impact caused by commercial developments and travel time , this paper puts forward a method to identify the traffic impact area on commercial location and travel time by taking background traffic into consideratio n , which is very useful to instruct TIA in different cities theoretically and practically.