Crowding on Mooreville' s subway frequently leads to delays, because it is difficult for passengers to exit from the trains  Subway ridership is projected to increase by 20 percent over the next 10 years  The Mooreville Transit Authority plans to increase the number of daily train trips by only 5 percent over the same period
Officials predict that this increase is sufficient to ensure that the incidence of delays due to crowding does not increase
By changing maintenance schedules, the Transit Authority can achieve the 5 percent increase in train trips without purchasing any new subway cars.