Fleet Planning Decision-Making: Two-Stage Optimization with Slot Purchase

Table 1

The computational results of case study.

Slot purchase decision
Current operating network:
Slot purchase decision for KL–London route	Years 1, 2, 4, 6, 7, 8
New operating network:
Slot purchase decision for long-haul rote #3	Year 2
Revenue and profit
Total annual revenue, (contributed by slot purchase decision)	67,406,638
(i) Current operating network	33,912,947
(ii) New operating network	33,493,691
Annual profit of airline,	589,667,623
Demand
Total annual demand (met by slot purchase decision)	66,460
(i) Current operating network	29,045
(ii) New operating network	37,415
Average demand level of airline	4,064,316
Service frequency
Total annual service frequency (provided by slot purchase decision)	323
(i) Current operating network	42
(ii) New operating network	281
Average service frequency of airline (per annum)	28,714
Fleet planning decision
Fleet size (at the end of year 8)	56
B737-400	18
B737-800	16
B777-200	6
A330-300	12
A380	4
Quantity of purchased aircraft : leased aircraft	48 : 8