Interchange System Planning Studies, For The Highway Network

As the increasing of transportation on rode, the development of expressway inclines to latticing. Interchange, as the node of the traffic net improving day to day and the important part on expressway has the proprietary function of joint and transfixion between the expressways or between the expressway and important economic area. According to the existing circumstance and future planning in expressway net, this paper studies the localization manner based on position assure principle at the first place, and discusses the position adjustment considering it's affecting factor. Secondly, based on shape assure principle, this paper studies the loctotype manner, and discusses the shape adjustment according to it's affection factor. Thirdly, this paper constructs a set of appropriate index system, and puts forward the evaluation manner. At last, this paper uses an interchange system planning of expressway in Hebei province as an example to demonstrate it's research.Considering from the whole expressway net, this paper studies the position and shape planning. That satisfies the systematicness and chronicity of interchange construction, and avoids the waste of all kinds of resource after interchange constructed.