Improving_Route_ManagementWithout efficient commodity shipping systems, online shopping can not gain its popularity today. By 2040, long-haul freight shipping by truck in the U.S. may reach 460 million miles per day. Nowadays, freight shipping companies are facing the challenge of fast-growing demands for short lead times and flexible delivery slots.

Many problems in route management are essentially graph problems. For example, searching the shortest path to the destination is one of the most commonly seen problems in route management. The problem can be described in graph by representing each stop as a vertex and using the edge to describe the reachability relationship between the stops. Many graph algorithms are also available for the shortest path problem.