【OG24-692题】Enforcement of local speed limits through police monitoring has proven unsuccessful in the town of Ardane. In many nearby towns, speed humps(raised areas of pavement placed across residential streets, about 300 feet apart)have reduced traffic speeds on residential streets by 20 to 25 percent. In order to reduce traffic speed and thereby enhance safety residential neighborhoods, Ardane's transportation commission plans to install multiple speed humps in those neighborhoods. Which of the following, if true, identifies a potentially serious drawback to the plan for installing speed humps in Ardane?_mofa留学圈mofaGRE在线题库系统_GRE在线搜题_GRE题库解析_GRE真题机经_GRE课程_GRE培训机构

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Enforcement of local speed limits through police monitoring has proven unsuccessful in the town of Ardane. In many nearby towns, speed humps(raised areas of pavement placed across residential streets, about 300 feet apart)have reduced traffic speeds on residential streets by 20 to 25 percent. In order to reduce traffic speed and thereby enhance safety residential neighborhoods, Ardane's transportation commission plans to install multiple speed humps in those neighborhoods.

Which of the following, if true, identifies a potentially serious drawback to the plan for installing speed humps in Ardane?

On residential streets without speed humps, many vehicles travel at speeds more than 25 percent above the posted speed limit. Because of their high weight, emergency vehicles such as fire trucks and ambulances must slow almost to a stop at speed humps The residential speed limit in Ardane is higher than that of the nearby towns where speed humps were installed. Motorists who are not familiar with the streets in Ardane's residential districts would be likely to encounter the speed humps unawares unless warned by signs and painted indicators Bicyclists generally prefer that speed humps be constructed so as to leave a space on the side of the road where bicycles can travel without going over the humps

正确答案： B

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题干翻译
附近城镇，减速带（住宅街道上每隔约300英尺设置的凸起路面区域）使住宅街道上的交通速度降低了20% 25%。为了降低交通速度并从而增强住宅社区的安全性，Ardane的交通委员会计划在这些社区安装多个减速带。以下哪一项，如果为真，指出了在Ardane安装减速带计划的一个潜在严重缺陷？ 逻辑链
Install speed humps → Enhance safety 问题类型
削弱题 推理过程
计划是安装减速带以增强安全性，需要找出会对该计划产生负面影响的因素。 选项分析
A选项：在没有减速带的住宅街道上，许多车辆行驶速度比规定速度限制高出25%以上。这与安装减速带计划本身的缺陷无关，无法削弱，排除。 B选项：因为重量大，像消防车和救护车这样的紧急车辆在减速带处几乎必须停下来。这会影响紧急车辆的通行效率，可能在紧急情况下延误救援等，对安装减速带增强安全性的计划构成严重缺陷，当选。 C选项：Ardane的住宅限速比安装减速带的附近城镇更高。限速高低与安装减速带计划的缺陷没有直接关联，无法削弱，排除。 D选项：不熟悉Ardane住宅区街道的驾车者如果没有标志和涂漆指示的警告，可能会毫无察觉地遇到减速带。但可以通过设置标志等解决，不是严重缺陷，无法削弱，排除。 E选项：骑自行车的人通常希望减速带的构造能在道路一侧留出空间，让自行车无需经过减速带。这与安装减速带计划增强安全性的核心目的关系不大，无法削弱，排除。

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