许多城市的铁路货场由城市迁到郊外,这对铁路“门对门”运输,造成一定困难,而终到货物的配送车辆走行径路的优化,可以减少市内车辆走行距离,降低运输成本。 In many cities, the freight yard has been relocated from the city to the outskirts of the country. This has caused some difficulties in the railway transportation. The optimization of the route for the delivery of goods to the destination can reduce the travel distance of the vehicles in the city and reduce the transportation cost.