食品冷链物流配送路径优化研究

In light of the latest research on routing optimization for 3rd party cold chain logistics, a new model incorporating costs and constraints is proposed. A simulated anneal arithmetic is designed to approximate the optimal solution. The influence of vehicle speed and load on transport energy consumption are taken into account. The energy consumption for cooling when en routing is differentiated from that when docking. Food deteriorating rate is depicted with an exponential function instead of a constant. A numerical experiment shows that after scrutinize the aforementioned factors, new optimal routes are found. The new routes are distinctly different from those found in a previous study. The total cost could cut for about 11% if follow the new ones.