Post-Event Restoration Sequence Optimization for Road Networks Leveraging Graph Attention Networks

YAO Yitao, JIA Bin, ZHAO Tingting

Journal of Systems Science and Mathematical Sciences ›› 2025, Vol. 45 ›› Issue (4) : 1013-1030.

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Journal of Systems Science and Mathematical Sciences ›› 2025, Vol. 45 ›› Issue (4) : 1013-1030. DOI: 10.12341/jssms240089

Post-Event Restoration Sequence Optimization for Road Networks Leveraging Graph Attention Networks

  • YAO Yitao, JIA Bin, ZHAO Tingting
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Abstract

Identifying key segments within road networks is crucial for selecting repair objectives and optimizing repair sequences during the post-disaster recovery phase. Traditional methods for identifying key segments have not fully explored the interactions between multiple segments, particularly the significance of studying road network vulnerability under simultaneous disruptions of multiple links. To tackle this issue, this study introduces a machine learning model called transportation graph attention networks for criticality analysis (TGAT) to identify key road segments when facing multiple disruptions. This model is trained on data samples that include scenarios of multiple segment failures, utilizing the graph attention network to evaluate the influence weights between segments and calculating the criticality of each segment based on these weights. The model, trained using mean squared error as the loss function, is capable of identifying segments that play a crucial role in the performance of the road network. Taking the Kunshan City road network as an example, this paper compares the effectiveness of the TGAT method with three other methods:Degree centrality, weighted betweenness centrality, and eigenvector centrality, in optimizing repair sequences during the post-recovery phase. Experimental results indicate that the TGAT method is more effective in identifying key segments within the road network compared to the other three methods, and the repair sequence optimized using TGAT further enhances the repair performance of the road network.

Key words

Urban road network / restoration strategy / resilience / multiple-link failures / machine learning / graph attention network

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YAO Yitao , JIA Bin , ZHAO Tingting. Post-Event Restoration Sequence Optimization for Road Networks Leveraging Graph Attention Networks. Journal of Systems Science and Mathematical Sciences, 2025, 45(4): 1013-1030 https://doi.org/10.12341/jssms240089

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