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By 2036, experts say there will be over 2.8 billion cars on the road. So traffic jams are about to get worse - especially in big cities. Smart Citiy projects are tackling exactly that problem. Can traffic lights be a solution to maximize efficiency? And is the private car dead? Our reporter Killian got an exclusive look at a smart city prototype that is bringing an old technology back from the grave to make it fit for the 21st century. What do you think about smart cities? Let us know in the comments....
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