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
考研
Is sitting in traffic as inevitable as death and taxes? Perhaps not. Many countries now have dedicated traffic-monitoring centre
Is sitting in traffic as inevitable as death and taxes? Perhaps not. Many countries now have dedicated traffic-monitoring centre
admin
2014-04-20
96
问题
Is sitting in traffic as inevitable as death and taxes? Perhaps not. Many countries now have dedicated traffic-monitoring centres linked to networks of cameras and sensors. Throw in traffic-spotting aircraft, accident reports and the known positions of buses fitted with satellite-positioning gear, and it is possible to see exactly what is happening on the roads. Drivers could switch from busy to quiet routes and avoid congestion—if only they had access to this information.
And now they do. Systems such as the Traffic Message Channel and the Vehicle Information and Communication System(VICS), in Europe and Japan respectively, pipe data from traffic centres into in-car navigation systems via FM radio signals. Drivers can see where the traffic is and try to avoid it. Honda, a Japanese carmaker, even combines VICS data with position data from 150,000 vehicles belonging to members of its Premium Club so that they can choose the fastest lane on a congested road, says David Schrier of ABI Research, a consultancy.
Meanwhile ITIS, a British company, is one of several firms experimenting with mobile-phone signals to monitor traffic on roads that lack sensors or cameras. Its software hooks into a mobile operator’s network and uses a statistical approach to deduce traffic speeds as phones are "handed off" from one cell tower to another. The data must be cleaned up to exclude pedestrians and cyclists, but this idea has great potential, says Mr Schrier.
Another way to dodge traffic is to predict where and when it will form. In Redmond, Washington, at the headquarters of Microsoft, employees have been testing a traffic-prediction system called JamBayes. Users register their route preferences and then receive alerts, by e-mail or text message, warning them of impending traffic jam. JamBayes uses a technique called Bayesian modeling to combine real-time traffic data with historical trends, weather information and a list of calendar events such as holidays. Eric Horvitz of Microsoft, who developed the system, says it is accurate 75% of the time, and 3, 000 employees use it daily.
A system called Beat-the-Traffic, developed by Triangle Software of Campbell, California, with funding from the National Science Foundation, goes further. It not only warns drivers of impending traffic but also suggests an alternative route via e-mail or text message. Andre Gueziec, the firm’s boss, thinks traffic forecasts will become as prevalent as weather forecasts. Indeed, in June, KXTV News 10, a TV station in Sacramento, California, began showing Triangle’s traffic forecasts for the coming week.
The use of mobile-phone signals in monitoring traffic is______.
选项
A、monopolized by ITIS, a British company
B、promising but still under experiment
C、based on the data from people on roads
D、effective in reducing traffic speeds
答案
B
解析
推断题。根据题干中的mobile-phone signals in monitoring traffic定位至第三段首句。该句指出:同时一家英国公司ITIS正在进行实验,用手机信号监测没有安装感应器和摄像头的道路的交通状况。结合该段末句中的this idea has great potential可以推断出[B]为答案。由该段首句中的one of severalfirms可知ITIS不是唯一一家做这项实验的公司,排除[A]。末句指出:数据中必须排除掉行人和骑车的人。这与[C]中的people on roads不一致,故排除。该段第二句提到deduce traffic speeds(推测通行速度),[D]中reduce是对deduce的曲解,排除。
转载请注明原文地址:https://kaotiyun.com/show/WDO4777K
0
考研英语一
相关试题推荐
Tounderstandhowastrologyworks,weshouldfirsttakeaquicklookatthesky.Althoughthestarsareatenormousdistances,t
ThefirsttechnologicalrevolutioninmodernbiologystartedwhenJamesWatsonandFrancisCrickdescribedthestructureofDNA
There’sahumanliversittinginalabdishinMadison,Wis.Alsoaheart,abrainandeveryboneinthehumanbodyeventhough
Childrenattendingschoolslocatedinhigh-trafficzoneshavea45percentincreasedriskofdevelopingasthma,eventhoughtime
TheSouthdaleshoppingcentreinMinnesotahasanatrium,afoodcourt,fountainsandacresofparking.ItsshopsincludeaDair
Manycountrieshaveatraditionofinvitingforeignerstorulethem.TheEnglishcalledinWilliamofOrangein1688,and,depen
Whenpeopleindevelopingcountriesworryaboutmigration,theyareusuallyconcernedattheprospectoftheirbestandbrightes
Perhapsnothingwillbeassurprisingabout21st-centuryAmericaasitssettledness.FormorethanagenerationAmericanshaveb
随机试题
在超音速火焰喷涂过程中,喷涂焰流长度虽大,但在直径上收缩小,使喷涂焰流能量大而集中。()
A.面浮足肿B.腹胀如鼓C.咳嗽痰少D.面色萎黄脾肺气虚证可见
下述有关阑尾假黏液瘤的说法中哪一项是错误的
不是氨基酸脱羧基作用生成的胺类物质是
扩张静脉,降低前负荷扩张动、静脉,降低前、后负荷
某运输公司运输一批货物出境,收取全程运费100万元,含保险费6000元,出境时付给境外承运公司50万元,该运输公司应纳营业税为( )。
在垄断资本主义阶段占统治地位的资本是()。
已知点(-5,y1),(1,y2),(10,y3)在函数y=(x-2)2+c的图象上,则y1,y2,y3的大小关系是()。
WhichofthefollowingstatementsisTRUEaboutMissGreen’suniversitydays?
Entertheinformationage.Informationistherawmaterialformanyofthebusinessactivities【C1】______thisnewera,justasir
最新回复
(
0
)