A traffic intersection currently has a vehicle count of 10,000
cars daily, expected to increase by 1,000 per day each year(i.e.,
it is expected that there will be 11,000 cars per day in 2012,
12,000 cars per day in 2013, etc.). A new traffic signal system
being installed at the intersection is estimated to cost $200,000.
It is expected to save each car passing through an average of $0.02
worth of fuel, wear and tear, and time. If the system...