Emergency Vehicle Scheduling Problem with Time Utility in Disasters

Table 1

The basic information of disaster areas.

Disaster areas	Demands	Unloading time	Time windows	Urgency degree
1	1	0.2	0, 6	0.1
2	2	0.3	0, 6	0.1
3	4	0.5	0, 3	0.1
4	3	0.4	0, 7	0.1
5	1.5	0.2	0, 6	0.1
6	1	0.5	0, 5	0.1
7	2.5	0.4	0, 7]	0.1
8	3	0.4	0, 9	0.3