Initially self-drive cars would be able to share the car share lanes, which are commonplace throughout North America. Given that the I-5 has a minimum of eight lanes and in some places has 10, this stage of the project could begin almost immediately. Gradually these lanes would be handed over completely to self-drive cars. The final, and most radical, proposals which would see human motorists banned completely could be introduced in 10 to 15 years time

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Humans are nearly banned from the car-share lanes already, since most people drive alone.