A green city blooms in the desert

Autos are banned in Masdar. Instead, commuters can hop on the personal rapid transit (PRT) system, which will consist of some 3,000 electric cars that operate on a recyclable lithium-cadmium battery, whose charge can be topped off while the vehicle is waiting at a station. Each car can hold six passengers, who will be transported nonstop to any one of 83 stations in the city.

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