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jamesyeah

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 Metroville 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.

Which of the following, if true, provides the strongest grounds for the officials’ prediction?

By changing maintenance schedules, the Transit Authority can achieve the 5 percent increase in train trips without purchasing any new subway cars.

The Transit Authority also plans a 5 percent increase in the number of bus trips on routes that connect to subways.

For most commuters who use the subway system, there is no practical alternative public transportation available.

Most of the projected increase in ridership is expected to occur in off-peak hours when trains are now sparsely used.

The 5 percent increase in the number of train trips can be achieved without an equal increase in Transit Authority operational costs.

答案如何使D啊？没有想明白

jamesyeah

up

天之角

韦氏词典：ridership:the number of persons who ride a system of public transportation

原文说客流量预计要增长20%，但MTA只建议增长5%的train trips ，

解释原因就因为大部分增长的客流量来源于本来就使用不足的非高峰时段。（把增加的train trips都放在peak hours即可解决crowding and delays）

jamesyeah

谢谢，明白了

阿土莎莎