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
A system was developed to control traffic congestion on the M25 motorway. Experts use【L5】________information from the motorw
A system was developed to control traffic congestion on the M25 motorway. Experts use【L5】________information from the motorw
admin
2022-03-29
76
问题
A system was developed to control traffic congestion on the M25 motorway. Experts use【L5】________information from the motorway to set【L6】________according to traffic build-up. However, in order to maintain a steady flow of traffic, the number of vehicles on the roads should not exceed【L7】________per lane per hour, which is far fewer than the number on【L8】________of the motorway. One solution could be to fit the car with【L9】________and a computer. The system would be activated when approaching an area of congestion and the computer would then regulate the acceleration and【L10】________to help the car to pass easily through the congestion.
【L7】
A: So they’re looking at live action on the motorway?
D: Exactly. Because they’re working in real time and reacting immediately to the situation on the road, they hope to alleviate problems before they happen. So as the traffic gets heavier to the point where these waves of congestion are likely to form, the controllers monitoring the situation set speed limits at say, 50 or 60 mph to regulate the flow. Further back down the motorway at the back of the congestion zone, they set a lower speed limit, say 40 mph, which should theoretically help control the traffic through the problem area.
A: But traffic jams still happen on the M25, don’t they? I was in one a few months ago and we were at a standstill for ages.
D: Yes, of course, sometimes there are simply too many cars on the roads, I think what the programme said was that the ideal number of cars on the road is
no more than 2,000 per lane per hour
— something like that. Theoretically, this should keep traffic moving smoothly at all times. But of course the number of cars on the road
far exceeds this
— I think in
some sections of the M25
there have been up to 200,000 vehicles a day.
A: Mmm. So, basically we need to reduce the number of cars on the roads. Well, that’s not likely to happen, is it?
D: No, but researchers are still looking into car technology that might help. As most congestion waves are caused by drivers braking too hard suddenly, the idea is that you
install radar on the outside of the car
and an onboard computer. The driver would activate the system when signs alerted him or her to a possible congestion zone. Then the computer would take over and then
take control of the braking and acceleration.
Because it can react much faster than a human driver, in theory, it would control the car smoothly through the zone.
A: A bit like an auto-pilot system?
D: Yes.
选项
答案
2.000
解析
本题有关道路上的理想交通量。录音原文中的no more than是题目中should not exceed的同义替换。
转载请注明原文地址:https://kaotiyun.com/show/Lf8O777K
本试题收录于:
雅思听力题库雅思(IELTS)分类
0
雅思听力
雅思(IELTS)
相关试题推荐
Labelthediagrambelow.ChooseNOMORETHANTWOWORDSfromthetextforeachanswer.Writeyouranswersinboxes7-13o
Doeswaterhavememory?ThepracticeofhomeopathywasfirstdevelopedbytheGermanphysicianSamuelHanuman.Duringresear
Mattcheachstatementwiththecorrectperson,A-G.Writethecorrectletter,A-G,inboxes20-26onyouranswersheet.
CLUBSFORSTUDENTSThereareavarietyofClubswhichprovidesocialandculturalactivitiesforthosewishingtomeetotherswi
Ahumanismorevulnerabletotigerattackwhensquattingbecause
Youshouldspendabout20minutesonQuestions1-14.CREATIVETOYSABathtimeanimalsFivefoammix-and
WhatisJane’sstudystrategyinlectures?
WhichTWOofthefollowingaresalesstrategiesforchocolatesinItalyandGermany?AChangethelocationoftheproductonshe
WhichTWOofthefollowingaresalesstrategiesforchocolatesinItalyandGermany?AChangethelocationoftheproductonshe
StrategiesforeffectiveuseoflecturesDosome【L25】________【L26】________andsitwhereyoucanseeandheareasily.Be【L27】___
随机试题
(2011年04月)企业出于自身利益的考虑,未向消费者披露与产品相关的价值、功效、用途或安全的信息,这种不道德行为属于_________。
A、高热骤降,涕泪横流。两目红赤B、高热不退,咳嗽气促,鼻煽痰鸣C、壮热起伏,烦躁不安,咳嗽阵作D、高热不退,烦躁谵妄,四肢抽搐E、咽喉肿痛,咳声重浊,声如犬吠麻疹邪毒攻喉证在麻疹的基础上证见
燥邪犯肺证与肺阴虚证的鉴别要点是
下列选项中,属于煤矿安全监察方式的是()。
该书法作品的作者是()。
现在很多人在街头进行街头绘画或者临摹世界名画,在人行通道演奏乐器,精湛的技艺经常引起人们的围观。这种现象引起了交通堵塞,你是街道办事处的工作人员,你将会如何劝阻,请现场模拟一下。
下边对加点词语的解释不合文意的一项是______。从文章中我们可以看出作者的性格倾向于______。
在中国确立社会主义制度是中国共产党在波澜壮阔的历史进程中为中华民族作出的三个伟大历史贡献之一。社会主义基本制度的确立()
顺序执行下列两个语句的输出结果是_________。Strings="全国计算机等级考试";Systeth.out.println(s.length())
OntheOriginofBodyLanguageTheOriginofBodyLanguagehasalottodowiththeemotions.Theemotionsareahottopicof
最新回复
(
0
)