Green Vehicle Routing and Scheduling Optimization of Ship Steel Distribution Center Based on Improved Intelligent Water Drop Algorithms

Table 5

Relevant data of the distribution center and the shipyard.

Distribution point	X coordinates	Y coordinates	Requirement	Service time	Time window	Early arrival penalty coefficient	Late arrival penalty coefficient
1	18.7	15.29	0	0	(0, 40)	0	0
2	16.47	8.45	6	1.8	(5, 20)	5	15
3	20.07	10.14	5	1	(4, 15)	6	30
4	19.39	13.37	11	2.3	(1, 20)	10	10
5	25.27	14.24	6	1.8	(2, 20)	5	16
6	22	10.04	3	1.2	(5, 15)	8	18
7	25.47	17.02	8	2.4	(2, 18)	11	32
8	15.79	15.1	5	1.5	(1, 24)	8	21
9	16.6	12.38	6	1.8	(3, 27)	9	27
10	14.05	18.12	4	1.2	(1, 20)	12	15
11	17.53	17.38	5	1.5	(2, 16)	6	18
12	23.52	13.45	7	2.1	(2, 20)	7	22
13	19.41	18.13	6	1.8	(2, 10)	8	25
14	22.11	12.51	10	2	(3, 25)	7	31
15	11.25	11.04	9	2.7	(2, 28)	11	10
16	14.17	9.76	4	1.3	(3, 24)	5	10
17	24	19.89	7	1.2	(2, 20)	4	15
18	12.21	14.5	8	1.5	(1, 23)	6	18