Research Article
The Tractor and Semitrailer Routing Considering Carbon Dioxide Emissions
Table 4
The freight flows between any two cities (unit: loaded semitrailer).
| | To | From | | JNA | QD | ZB | ZZH | DY | YT | WF | JNI | TA | WH | RZH | LW | LY | DZH | LCH | BZH | HZ |
| | JNA | 0 | 1 | 2 | 1 | 2 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | | QD | 1 | 0 | 6 | 0 | 4 | 7 | 18 | 0 | 1 | 3 | 3 | 1 | 2 | 1 | 1 | 1 | 0 | | ZB | 1 | 4 | 0 | 1 | 2 | 2 | 3 | 1 | 1 | 1 | 0 | 0 | 3 | 3 | 3 | 0 | 1 | | ZZH | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | DY | 2 | 3 | 2 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | | YT | 1 | 6 | 2 | 0 | 2 | 0 | 5 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | | WF | 3 | 15 | 3 | 0 | 1 | 4 | 0 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 0 | | JNI | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | | TA | 0 | 1 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 1 | 1 | | WH | 0 | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | RZH | 0 | 3 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | LW | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | | LY | 1 | 2 | 3 | 0 | 1 | 1 | 2 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | | DZH | 0 | 0 | 3 | 0 | 1 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | | LCH | 1 | 1 | 4 | 0 | 1 | 0 | 1 | 2 | 3 | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | | BZH | 2 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | | HZ | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
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