No more drivers apart from ambulances, taxis and buses.
And delivery lorries, fire engines, tourist coaches, neverending police vehicles, residents' cars, blue badge holders, Royal Mail vans, refuse vehicles, street sweepers, couriers, workmen, tradesmen, takeaway delivery motorbikes, and still those bloody irritating rickshaws
You might get a 10% decrease, I suppose, once all the necessary exceptions are accounted for.