Key technology application research for intelligent operation and maintenance of urban bridge-tunnel clusters traffic based on BIM

Based on the background of intelligent traffic operation and maintenance of urban bridge-tunnel clusters, this paper studies the key technology application of BIM technology, including digital technology of urban bridges-tunnel facilities, analysis and coding technology of component-level for bridge-tunnel, multi-service synergistic technology such as inspection, monitoring, and maintenance, multiple data fusion technology of static, semi-static, dynamic real-time, as well as key technologies such as data integration and visualization interaction. Taking the urban bridge-tunnel clusters traffic engineering in Chongqing as an application case, the engineering application of the research results is introduced.