... Since we have a 40-year analysis period, the problem could be solved by any of the exact analysis techniques Here the problem specifies a present worth analysis The annual cost solution, with a 10%... representation of the situation, it illustrates a realistic statement of benefits and an economic analysis solution to the allocation of costs 16-20 Length (miles) Number of Lanes Average ADT Autos... = $10,000 (10) = $100,000 These are two mutually exclusive alternatives; we use an incremental analysis process Rank Order based on denominator = Low Road, High Road ∆ 1st Cost ∆ Annual Benefits