Research Article
Solving a Location, Allocation, and Capacity Planning Problem with Dynamic Demand and Response Time Service Level
Table 7
Case 2 (average case) with requests arriving at time 0 and the 30th min. in an hour.
| First level decision
Number of facilities {facility nodes} | Second level decision Facility node: assigned node(s) | Third level decision Minimum capacity (number of units) | Service unit# | Average response time per request (≤) | Average travel time per request (min.) | | Assigned facility node | Route: request# (earliest arrival time) | Sum of response time (min.) to requests |
| 4
, , , | :
( = 1, 2, 3, 4) | 4 | Unit :
( = 1, 2, 3, 4) | Unit : (0) (5)
( = 1, 2, 3, 4) | Unit : 0 + 0 = 0
( = 1, 2, …, 4) | 0 | 0 |
| | 2 , | : , | 2 | Unit 1: | Unit 1:
11 (0)21 (20)22 (25)12 (50) | Unit 1:
0 + 20 + 0 + 20 = 40 | 10 | 7.5 | | : , | Unit 2: | Unit 2:
31 (0)41 (20)42 (25)32 (50) | Unit 2:
0 + 20 + 0 + 20 = 40 |
| | 1 | : (all nodes) | 3 | Unit :
( = 1, 2, 3) | Unit 1:
11 (0)21 (20)22 (25)12 (50)
Unit 2: 21 (15)22 (20)
Unit 3: 31 (15)32 (20) | Unit 1:
0 + 20 + 0 + 20 = 40
Unit 2: 15 + 0 = 15
Unit 3: 15 + 0 = 15 | 8.75 | 7.5 |
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