According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically.The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two highway bridges along the route the rail line serves.Although the proposed improvements are indeed needed, the authority's plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.
Which of the following, if true, would cast the most doubt on the effectiveness of the authority's plan to finance the proposed improvements by increasing bridge tolls?
(A) Before the authority increases tolls on any of the area bridges, it is required by law to hold public hearings at which objections to the proposed increase can be raised.
(B) Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines.
(C) Between the time a proposed toll increase is announced and the time the increase is actually put into effect, many commuters buy more tokens than usual to postpone the effects of the increase.
(D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.
(E) The chairman of the authority is a member of the Tristate Automobile Club that has registered strong opposition to the proposed toll
答案选的是D，我虽然误打正着的也选了D，但是现在想想还是不明白。
题目不是说改进rail line会增加乘客的人数，所以政府想通过对rail line旁边的highway bridge的车辆收费来帮助改进rail line。
问题是哪个选项会影响政府的这个计划的有效性。
政府想通过收费来募集资金改进rail line。
D选项是说，政府收费后，通过highway bridge上的车减少了20%，所以会影响政府收取的费用。因此会影响政府的有效性。
这个是正常的理解吧
可是我的理解是，政府收费后，rail line 上的commuter减少了20%，去乘坐那些已经改进好的线路。这个看起来也合适啊，要不然D选项最后部分alternative route that has since been improved.为什么还要说that has since been improved。那这样看来这个commuter不就是rail line上的commuter吗？
感觉材料最后一句话【Although the proposed improvements are indeed needed, the authority's plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.】跟问题关系不大。作者: huangyu1648 时间: 2012-10-23 20:58
Responding to a pm:
The plan is to finance the improvements by increasing the toll on
2 highway bridges. What casts doubt on the plan?
The plan will be in trouble if the increase does not lead to
increased collection.
Option (C) says that commuters can 'postpone' the effects of the
increase. So it may take a little longer to get in the increased
collection but you probably will see the increase.
Option (D) says that commuters switch to another route when toll
is increased. So the overall collection may be actually less than
before. This certainly casts doubt on the plan.
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