What would happen if every single person on Earth simply disappeared? Gone. Not dead, just gone. This is the astounding story of a world we will never see. A world without people, where city streets are still populated by cars, without drivers. Nobody to fix bridges, repair buildings or maintain power plants. After being controlled by humanity for millennia, nature reclaims the earth. But how would that work? How long would skyscrapers, nuclear power plants, and our homes last is abandoned? How would wild and domestic animals fare without us? Will the Eiffel Tower outlast the Statue of Liberty? Aftermath : Population Zero gives us a chance to see the impact of human beings by seeing how Earth would adapt without us.
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Without drivers, the trucks are more reliable, with radar sensors stopping them from crashing. They roll 24 hours a day.
无人驾驶卡车更加可靠，雷达系统可以使卡车避免撞车事故，并且它们一天24小时不间断工作。
Sleep experts often compare people without enough sleep to drunk drivers: They don't get behind the wheel thinking they're probably going to kill someone.
睡眠专家经常把睡眠不足的人比作酒后司机：他们开车的时候不会想着可能会撞死人。
On test day,all the blind drivers were able to guide the car through the test area without any problems.
VOA: special.2009.11.03
These include voice-activated systems that let drivers make calls and send text messages without using their hands.
VOA: special.2010.01.08
Kevin Schumann,19, was one of the drivers. First,he drove without a cell phone, and was able to easily navigate around the cones and dolls.
VOA: standard.2010.06.24
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