http://feedproxy.google.com/~r/sciencedaily/~3/yGH8-sxyTSo/150706114135.htm

Imagine a fleet of driverless taxis roaming your city, ready to pick you up and take you to your destination at a moment’s notice. While this may seem fantastical, it may be only a matter of time before it becomes reality. And according to a new study such a system would both be cost-effective and greatly reduce per-mile emissions of greenhouse gases.

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