Multimodal Transport Path Selection of Cold Chain Logistics Based on Improved Particle Swarm Optimization Algorithm

Table 2

The node number of cities.

Number	Name of node city
1	Guiyang
2	Chongqing
3	Changsha
4	Xi’an
5	Wuhan
6	Zhengzhou
7	Taiyuan
8	Jinan
9	Shijiazhuang
10	Shenyang