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Pickup and delivery processes of mask transportation.
| Process | Supply/Demand nodes | Hub nodes |
||
|---|---|---|---|---|
| Wuhan | Enzhou | Xiantao | ||
| Pickup | Shijiazhuang | (0,0) | (1200k,2) | (0,0) |
| Xian | (207.9k,3) | (643.9k,3) | (208.1k,3) | |
| Chengdu | (0,0) | (1978k,2) | (0,0) | |
| Guiyang | (0,0) | (0,0) | (847k,3) | |
| Nanning | (565k,3) | (0,0) | (0,0) | |
| Delivery | Xiaogan | (0,0) | (0,0) | (700k,2) |
| Huanggang | (0,0) | (1470k,1) | (0,0) | |
| Huangshi | (0,0) | (1330k,2) | (0,0) | |
| Tianmen | (0,0) | (567k,2) | (0,0) | |
| Xianning | (772.9k,2) | (454.9k,1) | (355.1k,2) | |
