🤖 AI Summary
Conventional pavement management systems suffer from passive responsiveness and inadequate modeling of spatial dependencies and nonlinear degradation patterns across road networks.
Method: This paper proposes an active maintenance framework integrating digital twin technology with graph neural networks (GNNs). It constructs a dynamic graph representation of the road network by fusing multi-source data—including UAV remote sensing, LiDAR point clouds, and heterogeneous sensor streams—to explicitly model spatial correlations and forecast pavement deterioration. A reinforcement learning module optimizes maintenance policies within a closed-loop “perception–prediction–decision–feedback” architecture.
Contribution/Results: Evaluated on a realistic synthetic dataset, the method achieves an R² of 0.3798—substantially outperforming traditional regression models—and effectively captures nonlinear degradation dynamics. An interactive, explainable visualization dashboard enables real-time simulation and intelligent decision support. The framework establishes a novel paradigm for sustainable, data-driven pavement health management.
📝 Abstract
Pavement infrastructure monitoring is challenged by complex spatial dependencies, changing environmental conditions, and non-linear deterioration across road networks. Traditional Pavement Management Systems (PMS) remain largely reactive, lacking real-time intelligence for failure prevention and optimal maintenance planning. To address this, we propose a unified Digital Twin (DT) and Graph Neural Network (GNN) framework for scalable, data-driven pavement health monitoring and predictive maintenance. Pavement segments and spatial relations are modeled as graph nodes and edges, while real-time UAV, sensor, and LiDAR data stream into the DT. The inductive GNN learns deterioration patterns from graph-structured inputs to forecast distress and enable proactive interventions. Trained on a real-world-inspired dataset with segment attributes and dynamic connectivity, our model achieves an R2 of 0.3798, outperforming baseline regressors and effectively capturing non-linear degradation. We also develop an interactive dashboard and reinforcement learning module for simulation, visualization, and adaptive maintenance planning. This DT-GNN integration enhances forecasting precision and establishes a closed feedback loop for continuous improvement, positioning the approach as a foundation for proactive, intelligent, and sustainable pavement management, with future extensions toward real-world deployment, multi-agent coordination, and smart-city integration.