Abstract
Key : words Traffic engineering; sustainable development; analytic hierarchy process; city traffic Abstract. According to the spatial distribution characteristics of the network is divided into sections and intersections of City road-network , according to the distribution of traffic flow characteristics an reference of relevant standards at home and abroad, the city traffic sustainable development degree is divided into 5 grades, selected the city sustainable development indicators, using analytic hierarchy process to establish traffic sustainable development two level evaluation index system and the corresponding fuzzy comprehensive evaluation model, and finally to a specific network traffic can develop continuously undertook determining. The research results for the assessment of city traffic sustainable development provided a kind of effective quantitative analysis method. At present, the city traffic sustainable development quantitative description has no unified standards, mainly to saturation, speed, density or fleet retention length to judge, although these amount to a certain extent the road network traffic can develop continuously undertook certain expressions, they don't reflect the traffic sustainable development - what is the essence of the road traffic is a serious waste of resources, or imbalance of traffic order. Transport aims to make people and objects are efficient, fast, convenient moving, but regardless of is the saturation, or speed or density are not accurately, effectively describe network traffic sustainable development degree, then based on the concept of traffic congestion mitigation strategy is also not really solve the congestion problem ) 6 1 ( − . Therefore, it is important to Judge network traffic sustainable development research, it can provide traffic management departments by accurate traffic data. Appropriate to the outlet of network traffic sustainable development measures, can provide a meaningful reference, avoiding the city traffic construction expands blindly and money and waste of resources.
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