a. Discuss the effects of parking in transportation. b. The owners of Rawlings Park, Accra have observed that 25% of those wishing to park is turned back every day during the open hours of 8 am to 6pm because of lack of parking spaces. An analysis of data collected at the garage indicates that 70% of those who park are commuters, with an average parking duration of 9hrs and the remaining ar shoppers, whose average parking duration is 2hrs. If 20% of those who cannot park are commuters and the rest are shoppers, and a total of 300 vehicles currently park daily in the garage, determine the number of additional spaces required to meet the excess demand. Assume parking efficiency is 0.80.