A disturbance-oriented resiliency-oriented signal control sub-zone division method and system

Abstract

The application discloses a disturbance-oriented resiliency-oriented signal control sub-area division method and system, belongs to the technical field of traffic control systems, and solves the problems of lack of resiliency response expression, insufficient prior guidance of key nodes, unstable clustering boundary and insufficient traffic engineering implementability of the prior art in a disturbance scene. A city road network directed graph is constructed, a disturbance scene and recovery parameters are set, and the global efficiency of the city road network directed graph in a disturbance process is calculated; according to the global efficiency of the road network, a node-level resiliency index is calculated for each node, and a resiliency key control node is identified based on the node-level resiliency index; a necessary connection constraint of an influence domain corresponding to the resiliency key control node is generated, and a constraint similarity matrix is constructed; constraint spectral clustering is carried out based on the constraint similarity matrix, the clustering result is corrected in boundary, and a signal control sub-area division result is generated. The application is used for realizing resiliency-oriented signal control sub-area division.

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