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gwd-5-33

Q33: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?

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

  2. The Transit Authority also plans a 5 percent increase in the number of bus trips on routes that connect to subways.
  3. For most commuters who use the subway system, there is no practical alternative public transportation available.
  4. Most of the projected increase in ridership is expected to occur in off-peak hours when trains are now sparsely used.

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

这个题目答案d,弄不懂

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M城地铁的拥挤经常导致地铁晚点,因为乘客很难疏散。地铁乘客在未来十年预计增加20%,M城运输当局计划在同一时段内增加5%的运力,他们预计增加的运力足够保证由于拥挤导致的晚点不会增加。

d. 增加的乘客预计发生在非高峰时期,这个时期车次很少。

高峰时期的乘客没有增加,而车次增加,所以“由于拥挤导致的晚点不会增加”

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