Fuzzy comprehensive assessment of assignmentability of urban traffic networks

In this paper, a new concept of assignmentability is proposed. The concept is used to assess the efficacy of the dynamic traffic assignment on road networks. We construct a system to handle the measurement of assignmentability and develop a model whose variables cannot be computed precisely. Based on graph theory and traffic flow theory, the relationship of three local parameters, the degree of saturation, the number of routes between the origin-destination pairs and the connectivity with assignmentability of network is considered. Although certain factors that affect assignmentability can be quantified by experts, their functional relationship to assignmentability is not so clear. In this paper, a fuzzy comprehensive evaluation framework is proposed to assess the assignmentability of traffic networks.