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
57
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.
【L10】
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
braking
解析
本题有关研究者提出的解决方案及其运行方法。录音原文中的take control of是题目中regulate的同义替换。
转载请注明原文地址:https://kaotiyun.com/show/mf8O777K
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
Doeswaterhavememory?ThepracticeofhomeopathywasfirstdevelopedbytheGermanphysicianSamuelHanuman.Duringresear
ChooseFOURletters,A-G.Writethecorrectlettersinboxes6-9onyouranswersheet.WhichFOURusesarelistedforbi
TheFlavorIndustryA.Readthroughthenutritionalinformationonthefoodinyourfreezer,refrigeratororkitchenpantry,
CLUBSFORSTUDENTSThereareavarietyofClubswhichprovidesocialandculturalactivitiesforthosewishingtomeetotherswi
Right-andleft-handednessinhumansWhydohumans,virtuallyaloneamongallanimalspecies,displayadistinctleftofright-ha
Right-andleft-handednessinhumansWhydohumans,virtuallyaloneamongallanimalspecies,displayadistinctleftofright-ha
Greatermobilitymaybeafeatureofthefuturebecauseofchangesin
Completethesentencesbelow.ChooseNOMORETHANTHREEWORDSfromthepassageforeachanswer.______wouldbeamoreeffective
soil(condition)本题有关从澳洲引入到苏格兰的物种的作用。录音原文中的bemoreeffective“更有效”和domore“更能干”都是题目中improve“改善”的同义表述。
随机试题
()是指金融资产根据历史成本所反映的账面价值。
治疗心阴虚,心火旺的心烦失眠宜选治疗热病伤阴之虚风内动宜选
在编制控制性详细规划的过程中,容积率可根据需要制定上限和下限。容积率的下限保证土地开发的效益,防止无效益和低效益开发造成的土地浪费。
我国已初步形成()的住房金融体系。
设L为连接(0,2)和(1,0)的直线段,则对弧长的曲线积分∫1(x2+y2)ds=
下列关于操作风险的说法,不正确的是()。
仲裁裁决被人民法院裁定撤销或不予执行的,当事人就同一纠纷,不能再以重新达成仲裁协议申请仲裁或向人民法院起诉。()
全国人大常委会《关于(中华人民共和国刑法)有关信用卡规定的解释》中规定:“刑法规定的‘信用卡’,是指由商业银行或者其他金融机构发行的具有消费支付、信用贷款、转账结算、存取现金等全部功能或者部分功能的电子支付卡。”这一规定属于()(2015年一法专一
Whoisthespeaker?
Somepsychologists(心理学家)maintainthatmentalactssuchasthinkingarenotperformedinthebrainalone,butthatone’smuscles
最新回复
(
0
)