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Table 3 Net present worth of sample feasible M&R alternatives (b) Replacement of 2” thick AC Overlay of Keel Section
From: Framework for airfield pavements management—an approach based on cost-effectiveness analysis
Year | Work description | Quantity | Unit cost Rs | Total cost Rs | PW factor | Present worth Rs |
|---|---|---|---|---|---|---|
(0) 2011 | Removal of 2” AC surface | 2124.6 m3 | 855.38 | 18,17,340 | 1.000 | 18,17,340 |
(0) 2011 | Tack Coat | 41,822 m2 | 41.14 | 17,20,557 | 1.000 | 17,20,557 |
(0) 2011 | 2” AC Overlay | 5004 Ton | 5938.3 | 2,97,15,253 | 1.000 | 2,97,15,253 |
(5) 2016 | Fog seal | 125,464 m2 | 95.14 | 1,19,36,645 | 0.822 | 98,11,922 |
(8) 2019 | Seal Cracks | 1274 m | 198 | 2,52,252 | 0.730 | 1,84,144 |
(10) 2021 | Tack Coat | 125,464 m2 | 41.14 | 51,61,618 | 0.676 | 34,89,254 |
(10) 2021 | Overlay 2” AC | 15,010 Ton | 5938.3 | 8,91,33,883 | 0.676 | 6,02,54,505 |
(15) 2026 | Fog Seal | 125,464 m2 | 95.14 | 1,19,36,645 | 0.555 | 66,24,838 |
(18) 2029 | Seal Cracks | 1274 m | 198 | 2,52,252 | 0.494 | 1,24,612 |
Sub Total | 11,37,42,425 | |||||
Less Salvage Value | 0 | |||||
Net Present Worth | 113.74Million PKR |