Design and Application of Network-Level Decision Support System for Urban Road

With the rapid development of road construction, the contradiction between urgent conservation needs and limited conservation funds is becoming more and more prominent. The traditional conservation management model is gradually replaced by the development and application of pavement management system. Relying on the requirement of the road management department of Suzhou, the architecture of Network-level Decision Support System for Urban Road (NDSSUR) was constructed first. Then, a detailed analysis of the most important three parts of the system - performance evaluation, maintenance decision and performance prediction - were carried on. Finally, based on the local dynamic detection data, NDSSUR was applied to evaluate pavement performance, suggest large and medium repair, and do a long-term planning for five years within the urban areas of Suzhou. Results from the program fit the actual condition of the road well.