面向交通规划的城市道路交通拥堵度分析模型

Model of urban road traffic congestion degree analysis faced to traffic planning

采用交通拥堵度来综合评价路网整体的拥堵程度,同时遵循点-线-面的递进研究路线,利用层次分析法和模糊综合评判的数学方法,并结合带转向延误的用户平衡交通分配问题所得的结果,给出了交通规划阶段的交通拥堵度的计算方法。最后结合算例,给出了交通拥堵度计算的具体步骤并说明了以交通拥堵度来评价路网拥堵程度的可行性和有效性。

Evaluating the congestion degree of road network comprehensively with traffic congestion degree was put forward.Using the mathematical theory of analytic hierarchy process and fuzzy comprehensive evaluation,and the results of user-equilibrium traffic assignment with turn delays,the calculation method of traffic congestion degree aiming at the phase of traffic planning was also provided,based on the researching routing of point-line-area.At last,according to the numerical example,this paper provided the concrete steps of calculating the traffic congestion degree and illuminated the feasibility and validity of evaluating the road network congestion degree with traffic congestion degree.