- A Stretch Of Road Is Showing Severe Rutting Three Methods To Solve The Problem Have Been Shortlisted In Table Q4 And Ne 1 (104.12 KiB) Viewed 44 times
A stretch of road is showing severe rutting. Three methods to solve the problem have been shortlisted in Table Q4 and need further evaluation. Draw a proper cash flow diagram for each alternative using 10 years design period and 4.2% discount rate: i. ii. iii. iv. Calculate the Net Present Worth (NPW) of the alternatives; Calculate the Benefit Cost Ratio (BCR) of the alternatives; Calculate the Internal Rate of Return (ROR) of the alternatives; and Based on your answers in (a) and (b), rank the alternatives from the best to the least economical Table Q4: Cost and benefit for three pavement rehabilitation alternatives Initial construction Annual Annual user cost maintenance savings Treatment (RM/lane/km) cost (RM/lane/km) (RM/lane/km) Chip Seal 110,000 23,000 50,000 Thin Overlay 135,000 21,000 48,000 Thick Overlay 420,000 20,000 54,000 Note: design period for chip seal and thin overlay = 5 years; design period for thick overlay = 10 years. (20 marks) *