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摘要: 针对多车场满载运输问题的特征, 提出了多车场车辆优化调度的数学模型, 设计了求解该问题的启发式算法, 应用结果表明, 该算法是可行的。Abstract: Based on analyzing the characteristic of the multiple depot vehicle scheduling (MDVS) problem with full loads, this paper put forward a optimization model, designed heuristic algorithm. Application example shows that this algorithm is feasible.
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Key words:
- vehicle dispatch /
- multiple depot /
- heuristic algorithm /
- full loads
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表 1 各车场与重载点及重载点之间的距离
/km Table 1. Distances from full loads sites to each depot and other sites
i j 车场1 车场2 车场3 1 2 3 4 5 6 车场1 - - - 8 1 3 5 4 6 车场2 - - - 7 2 7 9 11 2 车场3 - - - 4 3 2 5 7 8 1 2 3 4 3 6 9 2 3 5 2 1 5 7 11 8 7 1 4 10 3 8 6 2 12 3 8 9 5 6 4 4 9 5 4 10 3 8 6 7 5 3 1 6 3 2 4 7 1 9 6 2 10 9 6 7 8 9 10 1 
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表 2 各重载点所需车次数及各车场空车数
Table 2. Vehicle demands of every full loads site and empty car available in each depot
i 1 2 3 4 5 6 车场1 车场2 车场3 ai 20 15 30 10 8 9 20 30 40
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表 3 初始解
Table 3. Initial solutions
线路标号 行车路线 空驶里程 总里程 π1-π5 车场1-2-4-3-2-4-3-2-车场1 16 86 π6 车场2-6-6-6-6-6-6-6-车场1 10 80 π7 车场2-6-6-1-1-1-1-车场1 20 80 π8 车场3-3-5-5-5-5-5-5-车场2 13 83 π9 车场3-3-5-5-1-1-1-车场1 19 79 π10-π12 车场3-3-3-3-3-3-车场3 32 86 π13 车场3―3-3-3-1-1-车场1 35 85 π14-π15 车场3-1-1-1-1-1-1-车场1 21 81 π16 车场3-1-1-车场1 9 29
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表 4 满意解
Table 4. Satisfactory solutions
线路标号 行车路线 空驶里程 总里程 π1-π5 车场3-3-2-4-3-2-4-3-车场3 18 88 π6 车场1-2-5-5-5-5-5-5-车场2 11 81 π7 车场1-2-5-5-3-2-3-车场3 22 82 π8 车场2-6-6-6-6-6-6-6-车场1 10 80 π9 车场2-6-6-1-1-1-1-车场1 20 80 π10 车场2-2-3-2-3-3-车场3 25 75 π11-π12 车场3-3-3-3-3-3-车场3 32 86 π13-π14 车场3-1-1-1-1-1-1-车场1 21 81 π15 车场3-1-1-1-1-车场1 15 45
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