After half a decade of hard times, US car manufacturers sold more automobiles last year to American customers than ever before. The cars Americans are driving are more fuel-efficient and typically loaded with electronic devices. But within a decade, manufacturers say drivers should expect semi-autonomous and fully autonomous cars that will make driving safer and less tiring.

In 2004 US military research agency DARPA challenged automotive engineers to try to build a self-driving car. Though the course had only simple obstacles and no other traffic, none of the vehicles reached the end.
Twelve years later the technology has advanced so far that manufacturers are testing it on roads with real traffic, trying to make it absolutely safe for both passengers and pedestrians.
“I figured if I was able to make a car that was smart enough to drive itself, I could probably make a car that was smart enough to be a bit safer. So from my perspective, safety has always been our priority," said Ford's James McBride.
Google admits that its experimental self-driving cars have had some close calls, but points out that in late 2014 incidents happened once every 1,300 kilometers, while last year they happened once every 8,500 kilometers.
And it's not just about the safety, manufacturers also have to make sure consumers are willing to let go of the wheel.
“We don't want to go too far too fast because the customer may not be expecting that. There's a learning curve that has to take place," said Kia's Joseph Steffey.
One thing that can help customers get used to not being in control is the driving simulator. Wearing virtual reality goggles drivers can experience the sensation of being passive behind the steering wheel.
Some cars are already equipped with electronics stemming from the DARPA Grand Challenge, such as laser proximity sensors, video cameras, lane-change warning lights and other devices.
Researchers say future cars will also be able to communicate with the world around them, such as pedestrians’ smart phones.
“We can see where that pedestrian is walking, and then we can actually pick them up if they walk out in front of the car, and the car will choose to stop," said Steffey.
Experts say that safe and affordable self-driving cars should be available to the average consumer within four to five years.
Vocabulary:
self-driving car: 自动驾驶汽车
雅思阅读常见题型解析
雅思阅读陌生词汇的应对方法
攻破雅思阅读考试的四个关键
雅思阅读备考全面指南
雅思阅读掌握同义词的重要性
G类雅思阅读基本题型一览
雅思阅读配对题解题小技巧
雅思阅读高分应试三法“快准狠”
雅思阅读考试的解题步骤
雅思阅读如何获取高分?
雅思阅读题型介绍与高分技巧
雅思阅读多项选择题的三个技巧
雅思阅读考试怎样才能稳拿高分?
如何应对雅思阅读长难句
如何应对雅思阅读的疑难问题?
雅思阅读高分方法:合理安排做题顺序
雅思阅读备考的五个要点
雅思阅读长难句阅读技巧
攻克雅思阅读三大难题的方法
雅思阅读技巧:阅读浏览技巧
雅思阅读技巧介绍:快速阅读技巧
解答雅思阅读题目需认真审题
细数雅思阅读高分必须掌握的技巧
雅思阅读实用应试技巧介绍
雅思阅读高分技巧:猜测词义
雅思阅读判断题NG选项的特点介绍
雅思阅读文章常见结构分析
雅思阅读练习的7大要点
如何提高雅思阅读效率?
雅思阅读的七个实用答题方法
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |