A Hybrid Approach to the Optimization of Multiechelon Systems
Table 7
(a) The results of numerical examples for 2E-CVRP-TW (hard windows). (b) The results of numerical examples for 2E-CVRP-TW (soft windows, penalty = 30).
(a)
E-n13-k4
40
50
60
70
80
90
100
110
130
150
160
E-n13-k4-01
—
—
—
—
—
—
280
280
280
280
280
E-n13-k4-07
—
224
224
224
224
224
224
224
224
224
224
E-n13-k4-11
—
—
304
276
276
276
276
276
276
276
276
E-n13-k4-20
—
294
280
276
276
276
276
276
276
276
276
E-n13-k4-26
—
248
248
248
248
248
248
248
248
248
248
E-n13-k4-32
—
—
262
246
246
246
246
246
246
246
246
E-n13-k4-33
—
258
258
258
258
258
258
258
258
258
258
E-n13-k4-40
—
284
284
254
254
254
254
254
254
254
254
E-n13-k4-46
—
—
308
308
280
280
280
280
280
280
280
E-n13-k4-54
—
—
—
324
304
304
304
304
304
304
304
(b)
E-n13-k4
40
50
60
70
80
90
100
110
130
150
160
E-n13-k4-01
358
354
346
346
310
310
280
280
280
280
280
E-n13-k4-07
270
224
224
224
224
224
224
224
224
224
224
E-n13-k4-11
306
306
304
276
276
276
276
276
276
276
276
E-n13-k4-20
366
294
280
276
276
276
276
276
276
276
276
E-n13-k4-26
292
248
248
248
248
248
248
248
248
248
248
E-n13-k4-32
322
278
262
246
246
246
246
246
246
246
246
E-n13-k4-33
336
258
258
258
258
258
258
258
258
258
258
E-n13-k4-40
344
284
284
254
254
254
254
254
254
254
254
E-n13-k4-46
344
310
308
308
280
280
280
280
280
280
280
E-n13-k4-54
342
334
334
324
304
304
304
304
304
304
304
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