首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Believe it or not, optical illusion (错觉) can cut highway crashes. Japan is a case in point. It has reduced automobile crashe
Believe it or not, optical illusion (错觉) can cut highway crashes. Japan is a case in point. It has reduced automobile crashe
admin
2012-01-19
18
问题
Believe it or not, optical illusion (错觉) can cut highway crashes.
Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Bent stripes, called chevrons (人字形) painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down. Now the American Automobile Association Foundation for Traffic Safety in Washington D.C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.
Excessive speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed related hazards are the greatest curves, exit slopes, traffic circles, and bridges.
Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.
Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.
What does the author say about straight, horizontal bars painted across roads?
选项
A、They are falling out of use in the United States.
B、They tend to be ignored by drivers in a short period of time.
C、They are applicable only on broad roads.
D、They cannot be applied successfully to traffic circles.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/gxjd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
WhatdocsthemanimplyaboutMary?
WhatdocsthemanimplyaboutMary?
Forsometimepastithasbeenwidelyacceptedthatbabies--andothercreatures--learntodothingsbecausecertainactsleadto
Forsometimepastithasbeenwidelyacceptedthatbabies--andothercreatures--learntodothingsbecausecertainactsleadto
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudents.【C1】______alongreadingassignmentisgiven,
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudents.【C1】______alongreadingassignmentisgiven,
Whatdoesthemanprobablydo?
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smos
Awisemanoncesaidthattheonlythingnecessaryforthetriumphofevilisforgoodmentodonothing.So,asapoliceoffice
Belowisagraphshowingtheaveragenumberofhoursastudentspendsonthecomputerperweek.kookatthegraphandwriteabou
随机试题
人所特有的高级社会情感包括
Thefiddlercrabisalivingclock.Itindicatesthetimeofdaybythecolorofitsskin,whichisdarkbydayandpalebynigh
在李斯特菌属中,在羊血琼脂平板上产生狭小透明溶血环的是
A.性激素 B.糖皮质激素 C.甲状腺素 D.胰岛素 E.活性维生素D维持人体基础代谢率的激素是
房地产开发企业在确定销售人员数量时,应考虑的因素包括()。
沈某原是甲建筑公司的采购员,辞职后与李某合办一家乙建筑设备租赁公司。沈某现以甲公司的名义与其长期负责的甲公司大客户丙公司签了3000吨钢材购销合同,丙公司对沈某辞职并不知情。则对该合同承担付款义务的应是()。
水喷雾灭火系统适用范围有哪些?
处方药是指凭执行医师或执业助理医师处方可购买、调配和使用的药品。()
请对“给定资料6”中所展现的两种不同“孝心”举动.作出比较分析,并谈谈自己的见解。要求:分析透彻,观点明确。篇幅不超过200字。给定资料6.命运对孟佩杰很残忍,她却用微笑回报这个世界。五岁那年,爸爸遭遇车祸身亡,妈妈将孟佩杰送给别人领养,不久也因病去
计算机网络分为局域网、城域网和广域网,下列属于局域网的是
最新回复
(
0
)