Research Article
A Hybrid Tabu Search Algorithm for a Real-World Open Vehicle Routing Problem Involving Fuel Consumption Constraints
Table 1
Common parameters of vehicles.
| Notation | Description | Typical values |
| | Fuel-to-air mass ratio | 1 | | Gravitational constant (m/s2) | 9.81 | | Air density (kg/m3) | 1.2041 | | Coefficient of rolling resistance | 0.01 | | Efficiency parameter for diesel engines | 0.45 | | Fuel and CO2 emissions cost (RMB/liter) | 12.0165 | | Driver wage (RMB/s) | 0.0111 | | Heating value of a typical diesel fuel (kj/g) | 44 | | Conversion factor (g/s to L/s) | 737 | | Vehicle drive train efficiency | 0.45 | | Lower speed limit (m/s) | 0 | | Upper speed limit (m/s) | 27.8 (or 100 km/h) | | Acceleration (m/s2) | 0 |
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