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
92
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.
【L6】
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
speed limits
解析
本题有关M25高速路上引入的措施。录音原文中的set speed limits在题目中原词复现,录音中的collected from是题目中according to的同义替换。
转载请注明原文地址:https://kaotiyun.com/show/Gf8O777K
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
Labelthediagrambelow.ChooseNOMORETHANTWOWORDSfromthetextforeachanswer.Writeyouranswersinboxes7-13o
ChooseFOURletters,A-G.Writethecorrectlettersinboxes6-9onyouranswersheet.WhichFOURusesarelistedforbi
TheFlavorIndustryA.Readthroughthenutritionalinformationonthefoodinyourfreezer,refrigeratororkitchenpantry,
TheFlavorIndustryA.Readthroughthenutritionalinformationonthefoodinyourfreezer,refrigeratororkitchenpantry,
CLUBSFORSTUDENTSThereareavarietyofClubswhichprovidesocialandculturalactivitiesforthosewishingtomeetotherswi
Bailynarguesthatitisbetterforacompanytoemploymoreworkersbecause______
Ahumanismorevulnerabletotigerattackwhensquattingbecause
Youshouldspendabout20minutesonQuestions1-14.CREATIVETOYSABathtimeanimalsFivefoammix-and
随机试题
小细胞低色素性贫血可见于
下列典籍中,以擅长叙写战争著称的一部是【】
智力活动转向头脑内部,借助言语来作用于观念性对象的阶段是【】
下列贫血性疾病中,属于大细胞性贫血的是
某药厂生产的固本咳喘片,药物组成有党参、白术(麸炒)、茯苓、盐补骨脂、麦冬、醋五味子、炙甘草,功能益气固表,健脾补肾,主治脾虚痰盛、肾气不固所致的咳喘、痰多、喘息气促、动则喘剧;慢性支气管炎、肺气肿、支气管哮喘。以下不属于醋炙的作用的是()
对耐青霉素和头孢菌素类革兰阳性菌严重感染有效的抗生素为()。
心尖部哪一心音最强?()
中国居民的境内工资、薪金所得,以每月收入扣除()元费用后的余额,为应纳税所得额。
“入宋以来,湖北地区的粮食产量一直位于全国前列,湖北农业在全国经济生活中占有举足轻重的地位。”这一现象本质上反映了()。
教学者备课要写好的三个计划不包括()。
最新回复
(
0
)