无人驾驶车辆可能加大车辆使用率

时间：2016-02-28 06:06:24

（单词翻译:单击）

Driverless vehicles could intensify1 car use, reducing or even eliminating promised energy savings2 and environmental benefits, a study led by a University of Leeds researcher has warned. Development of autonomous3 driving systems has accelerated rapidly since the unveiling of Google's driverless car in 2012, and energy efficiency due to improved traffic flow has been touted4 as one of the technology's key advantages.
 
However, new research by scientists from the University of Leeds, University of Washington and Oak Ridge5 National Laboratory, published today in the journal Transportation Research Part A, says its actual impact may be complicated by how the technology changes our relationship with our cars.
 
Lead author Dr Zia Wadud, Associate Professor in the University of Leeds' Faculty6 of Engineering and a research group leader in the University's Institute for Transport Studies, said: "There is no doubt that vehicle automation offers several efficiency benefits, but if you can work, relax and even hold a meeting in your car that changes how you use it. That, in turn, may change the transport equation and the energy and environmental impact of road transport."
 
The study uses analysis of self-driving technology combined with data on car and truck use, driver licenses7, and vehicle running costs to model the impact on energy demand of various levels of automation on US roads by 2050. 
 
It identifies several efficiency benefits of self-driving cars and predicts ranges of likely energy impacts, depending on the extent of adoption8 of the technology and other factors:
 
More efficient computer-directed driving styles (0% to 20% reduction in energy use) Improved traffic flow and reduced jams because of coordination9 between vehicles (0% to 4% reduction) "Platooning" of automated10 vehicles driving very close together to create aerodynamic savings (4% to 25% reduction) Reduced crash risks mean that cars can be lighter11 (5% to 23% reduction) Less emphasis from car buyers on high performance (5% to 23% reduction).

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1 intensify S5Pxe     
vt.加强；变强；加剧
参考例句：
  • We must intensify our educational work among our own troops.我们必须加强自己部队的教育工作。
  • They were ordered to intensify their patrols to protect our air space.他们奉命加强巡逻，保卫我国的领空。
2 savings ZjbzGu     
n.存款，储蓄
参考例句：
  • I can't afford the vacation,for it would eat up my savings.我度不起假，那样会把我的积蓄用光的。
  • By this time he had used up all his savings.到这时，他的存款已全部用完。
3 autonomous DPyyv     
adj.自治的；独立的
参考例句：
  • They proudly declared themselves part of a new autonomous province.他们自豪地宣布成为新自治省的一部分。
  • This is a matter that comes within the jurisdiction of the autonomous region.这件事是属于自治区权限以内的事务。
4 touted 00151f908b31d984fd20d8b48dba34f3     
v.兜售( tout的过去式和过去分词 )；招揽；侦查；探听赛马情报
参考例句：
  • She's being touted as the next leader of the party. 她被吹捧为该党的下一任领导人。
  • People said that he touted for his mother and sister. 据说，他给母亲和姐姐拉生意。 来自辞典例句
5 ridge KDvyh     
n.山脊；鼻梁；分水岭
参考例句：
  • We clambered up the hillside to the ridge above.我们沿着山坡费力地爬上了山脊。
  • The infantry were advancing to attack the ridge.步兵部队正在向前挺进攻打山脊。
6 faculty HhkzK     
n.才能；学院，系；(学院或系的)全体教学人员
参考例句：
  • He has a great faculty for learning foreign languages.他有学习外语的天赋。
  • He has the faculty of saying the right thing at the right time.他有在恰当的时候说恰当的话的才智。
7 licenses 9d2fccd1fa9364fe38442db17bb0cb15     
n.执照( license的名词复数 )v.批准，许可，颁发执照( license的第三人称单数 )
参考例句：
  • Drivers have ten days' grace to renew their licenses. 驾驶员更换执照有10天的宽限期。 来自《现代汉英综合大词典》
  • Jewish firms couldn't get import or export licenses or raw materials. 犹太人的企业得不到进出口许可证或原料。 来自辞典例句
8 adoption UK7yu     
n.采用，采纳，通过；收养
参考例句：
  • An adoption agency had sent the boys to two different families.一个收养机构把他们送给两个不同的家庭。
  • The adoption of this policy would relieve them of a tremendous burden.采取这一政策会给他们解除一个巨大的负担。
9 coordination Ho8zt     
n.协调，协作
参考例句：
  • Gymnastics is a sport that requires a considerable level of coordination.体操是一项需要高协调性的运动。
  • The perfect coordination of the dancers and singers added a rhythmic charm to the performance.舞蹈演员和歌手们配合得很好，使演出更具魅力。
10 automated fybzf9     
a.自动化的
参考例句：
  • The entire manufacturing process has been automated. 整个生产过程已自动化。
  • Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS)，作为智能运输系统的子系统之一越来越受到重视。
11 lighter 5pPzPR     
n.打火机，点火器；驳船；v.用驳船运送；light的比较级
参考例句：
  • The portrait was touched up so as to make it lighter.这张画经过润色，色调明朗了一些。
  • The lighter works off the car battery.引燃器利用汽车蓄电池打火。

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