Evacuation navigation strategy in complex building fires

Aiming at the problem of resource optimization of fire evacuation route in complex buildings, based on the idea of minimum total evacuation time, network flow path planning is combined with PSO algorithman to construct the evacuation model.The model realize the goal of route saturation evacuation and parallel evacuation. The simulation results show that routes saturation evacuation improves utilization of available resources, and reflects the importance of leaders in the critical path. The model gives an evacuation plan with flexible evacuation mode, providing a method to guide evacuation based on public smart building management.