Abstract: Based on fuzzy theories, a novel fuzzy blocked model of urban traffic networks is proposed under considering networks data by space remote sensing, which is applied to evaluate the reliability of traffic networks for traffic modal depending on the connectivity. In addition, a solution algorithm is described. A case of urban traffic networks, in which 6 nodes, 8 links, and 29 collapse points are given to demonstrate the model. Results show that connectivity reliabilities of complete blocked, pedestrian crossing, bicycle crossing, manpower car crossing, private car crossing, heavy vehicle crossing, and complete unblocked states are 1, 1, 1, 0.636,0.171,0, and 0, respectively.