The government is considering constructing a new urban freeway for $500 million. This would save 30 000 commuters 10 000 hours a day (10 minutes each way) for 200 days a year. Suppose that the road can be built in one year, commuters value their travel time savings at $20 per hour and the road has a life of 30 years after year 1 and a residual value estimated at cost at $500 million in year 32. There are no other costs or benefits. i) Would the road provide a net social benefit with a discount rate of 7 per cent? Now suppose that the government charges a road toll of $2.50 each way and that traffic falls to 20,000 commuters twice a day. ii) What would be the financial outcomes using a 7 per cent discount rate? iii) What would be the net social benefit if the remaining commuters had an average value of travel time of $25 per hour?