A Multiobjective Mathematical Model for Truck Scheduling Problem in Multidoor Cross-Docking System

Table 2

Makespan obtained by mathematical model for the test problems.

Problem set	Problem size				Exact solution (makespan)
	Number of receiving trucks	Number of shipping trucks	Number of product types	Total number of products	Optimal [7]	Optimal this study
1	4	5	4	990	1557	1483
2	5	4	6	1030	1577	1412
3	3	3	8	890	1372	1300
4	5	5	8	1000	1749	1503
5	5	3	8	960	1579	1355
6	4	4	5	1020	1546	1370
7	5	4	6	980	1535	1330
8	3	5	7	890	1525	1451
9	4	4	8	900	1473	1334
10	3	4	9	930	1452	1363
11	5	4	6	1620	2232	1791
12	6	4	8	1950	2833	2140
13	5	6	8	1610	2386	1554
14	5	5	8	1680	2385	1831
15	6	5	4	2030	2745	2069
16	5	6	6	1690	2407	2001
17	4	4	7	1180	1867	1397
18	6	6	7	1770	2502	1989
19	5	5	10	1720	2553	2359
20	6	6	9	2020	2732	2392