ALLOWABLE PRIVATE VEHICLE FLOWS IN EMERGENCY VEHICLE MANAGEMENT FOLLOWING EARTHQUAKE DISASTERS

This paper discusses the determination of allowable private vehicle flows aimed at ensuring that travel demand does not exceed road network capacity under deterioration of traffic function in the road network. Since damage to urban road networks due to a strong earthquake causes congestion in other parts of the network, efficient disaster traffic management is essential. The problem to be addressed is formulated as a multi-commodity, two-modal (private vehicle flows and emergency vehicle) network flow problem based on the concept of network flow theory and Linear Programming (LP).