Research on road construction´s impact upon traffic flow

The construction of urban roads will have some negative impacts on the surrounding area. A clear understanding of the potential impacts upon traffic flow is the premise for a rational traffic planning during the construction time. Based on a detailed analysis of the relationship between road characteristics and traffic distribution. This paper applies shortest path with capacity limitation method to assign traffic volume to analysis quantitatively the impacts of road construction on traffic flow, it uses MATLAB soft ware to program and compute the related data, in addition, it gives an example to prove the method to be efficient in practice.