Mobility Project Evaluation: An underpass will eliminate the heavy traffic congestion and reduce vehicle crash rate at a busy intersection. The cost of the construction is $10 million, including land acquisition and the new interchange. It is assumed that the overpass will provide a higher level of service during the 4-hour peak period over the 2-mile design length. It is also assumed that no appreciable benefits will accrue during the off-peak periods so that an analysis of 250 weekdays per year will be satisfactory. A discount rate of 5% is to be used. Other pertinent information is summarized in the following. Determine the net present worth, benefit-to-cost ratio, and net equivalent uniform annual benefit of the project.

Component	Unit	Existing	Proposed
Speed	mph	16	40
Peak period flow rate	veh/hr	4500	6000
Vehicle crash rate	no./year	500	25
Unit rate of travel time and fuel costs	$/VMT	0.3	0.22
Unit rate of vehicle crashes	$	4000	4000
Annual maintenance cost	$	300000	400000
Service life	year	-	15