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
Traffic statistics paint a gloomy picture. To help solve their traffic woes, some rapidly growing U. S. cities have simply built
Traffic statistics paint a gloomy picture. To help solve their traffic woes, some rapidly growing U. S. cities have simply built
admin
2013-01-29
103
问题
Traffic statistics paint a gloomy picture. To help solve their traffic woes, some rapidly growing U. S. cities have simply built more roads. But traffic experts say building more roads is a quick-fix solution that will not alleviated the traffic problem in the long run. Soaring land costs, increasing concern over social and environmental disruptions caused by road-building, and the likelihood that more roads can only lead to more cars and traffic are powerful factors bearing down on a 1950s-style construction program.
The goal of smart-highway technology is to make traffic systems work at optimum efficiency by treating the road and the vehicles traveling on them as an integral transportation system. Proponents of the advanced technology say electronic detection systems, closed-circuit television, radio communication, ramp metering, variable message signing, and other smart-highway technology can now be used at a reasonable cost to improve communication between drivers and the people who monitor traffic.
Pathfinder, a Santa Monica, California-based smart-highway project in which a 14-mile stretch of the Santa Monica Freeway, making up what is called a "smart corridor", is being instrumented with buried loops in the pavement. Closed-circuit television cameras survey the flow of traffic, while communication linked to property equipped automobiles advise motorists of the least congested routes or detours. Not all traffic experts, however, look to smart-highway technology as the ultimate solution to traffic gridlock. Some say the high-tech approach is limited and can only offer temporary solutions to a serious problem.
"Electronics on the highway addresses just one aspect of the problem: how to regulate traffic more efficiently,"explains Michael Renner, senior researcher at the world-watch Institute. It doesn’t deal with the central problem of too many cars for roads that can’ t be built fast enough. It sends people the wrong message. They start thinking "Yes, there used to be a traffic congestion problem, but that’s been solved now because we have, advanced high-tech system in place."Larson agrees and adds, "Smart highways is just one of the tools that we use to deal with our traffic problems. It’s not the solution itself, just pan of the package. There are different strategies."
Other traffic problem-solving options being studied and experimented with include car pooling, rapid mass-transit systems, staggered or flexible work hours, and road pricing, a system whereby motorists pay a certain amount for the time they use a highway. It seems that we need a new, major thrust to deal with the traffic problems of the next 20 years. There has to be a big change.
According to Larsen, to redress the traffic problem,_____.
选项
A、car pooling must be studied
B、rapid mass transit system must be introduced
C、flexible work hours must be experimented
D、overall strategies must be coordinated
答案
D
解析
本题的依据句是倒数第三段的最后一句话“Larson agrees and adds,Smart highways is just one…just part of the package.There are different strategies.”。这说明,Larson认为应该采取多种方式解决交通堵塞问题。因此D项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/Re1O777K
0
考博英语
相关试题推荐
Ihavehadjustaboutenoughofbeingtreatedlikeasecond-classcitizen,simplybecauseIhappentobethatput-uponmemberof
Ihavehadjustaboutenoughofbeingtreatedlikeasecond-classcitizen,simplybecauseIhappentobethatput-uponmemberof
Consumersdeprivedoftheinformationandadvicetheyneededwerequitesimply______everycheatinthemarketplace.
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstatisticalmethods.Statisticshadamotherwhowasdedi
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstatisticalmethods.Statisticshadamotherwhowasdedi
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstatisticalmethods.Statisticshadamotherwhowasdedi
BecauseJenkinsneither______nordefendseithermanagementorthestrikingworkers,bothsidesadmirehisjournalistic______
The______of"snake"issimplythis:aleglessreptilewithalong,thinbody.
Hewillsimplynotlistentoanybody;heis______toargument.
Throughmostcitytrafficisregulatedbyautomatictrafficlights,thecity’sresidentsarenotoriousforignoringthem.
随机试题
解放战争爆发后,为什么喊出“必须打败蒋介石,能够打败蒋介石”的口号?
下列哪项是支气管肺炎患者最常见的并发症
颈部淋巴结肿大,疑为癌肿转移时,应首先考虑的是
微分方程y’=ex-y满足y(1)=ln2的特解是()。
A上市公司注册资本为10000万元,2010年末经审计资产总额为50000万元,经审计负债总额为30000万元,企业2010年之前没有担保业务。2010年A公司召开的董事会会议情形如下:(1)该公司共有董事7人,其中有1名是A公司的子公司B的董事。董事会
E股票和F股票不同时涨;如果F股票不涨,那么E股票涨;如果E股票不涨,那么,F股票也不涨。据此,可以推出()。
有以下程序#include#definef(x)x*x*xmain(){inta=3,s,t;s=f(a+1);t=f((a+1));printf("%d,%d\n"
A.whenyourplaneisabouttolandB.whenyouaretakingtabletsC.whenyousufferfromfood-poisoningD.whenyouaretravel
Isaythatnottopersuadeyou,butmerelyto_____myconscience.
Largeanimalsthatinhabitthedeserthaveevolvedanumberofadaptationsforreducingtheeffectsofextremeheat.【C1】______ad
最新回复
(
0
)