Evaluating Waterway Transit Capacity Based on AHP-Fuzzy Comprehensive Method

In order to quantitatively evaluate the waterway transit capacity, using traffic flow theory for reference, combined with the characteristics of waterway transport, a multi-factor and multi-class index evaluation system with speed, traffic density, traffic load ratio, channel patency and waterway transport is set up. A comprehensive evaluation to the waterway transit capacity is made using AHP combined with fuzzy comprehensive evaluation method. The result of index evaluation weights which are determined through AHP shows that: velocity is the primary factor for the waterway transit capacity, and then traffic density, traffic load ratio and waterway transport, followed by the channel patency. The comprehensive analysis is done to the Yangtze River waterway through the application of fuzzy comprehensive evaluation method. The result shows that the transit capacity was in the medium level.