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
高考作文热点词汇与作文句子模式
2009年安徽高考英语新题型专练:任务型读写
高中五一英语作文:A flower for my mum
高考英语作文功能话题讲练五:物品的描述
高考英语技巧:A、B开头的10个高中英语常见句型
2009年高考英语作文专项训练:任务型写作(4)
高考英语作文功能话题讲练(5套)
高中五一英语作文:五一劳动节May Day
2009高考英语作文写作攻略
高中英语作文:五一黄金周是否应该取消?
高考英语写作经典句型集合
2009年高考英语作文专项训练:任务型写作(13)
广东高考英语新题型读写任务写作答题指导
高考英语读写任务基本写作模板
2009年高考英语作文专项训练:任务型写作(2)
高考英语作文:善用万能句 以不变应万变
高考英语作文功能话题讲练四:路线的描述
2009年高考英语作文专项训练:任务型写作(17)
你对政府缩短了“五一”黄金周的看法(范文)
高中五一英语作文:我的旅游生活
高考英语作文功能话题讲练二:地点的表达
2009年广东高考英语新题型读写任务写作简介
2009年高考英语作文专项训练:任务型写作(3)
2009年高考英语作文专项训练----任务型写作
几种典型的英语作文开头引述方法
关于五一劳动节的高中英语作文集锦
2009年高考英语作文专项训练:任务型写作(8)
2009年高考英语作文专项训练:任务型写作(5)
高中五一英语作文:A photo of my family
英语写作中常用句子及套用模式
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |