One way to make an immediate 10-20% improvement in "efficiency" is to make GPS navigation systems a required component in all vehicles sold. Like a catalytic converter or an air bag. A huge percentage of vehicle miles driven are "lost miles" and by making navigation systems required in all new vehicles (and offering a $300 tax rebate for retrofit systems essentially making them free) would dramatically reduce fuel consumption.
It's a different way of thinking about the problem, admittedly. But effective nonetheless.
One way to make an immediate 10-20% improvement in "efficiency" is to make GPS navigation systems a required component in all vehicles sold. Like a catalytic converter or an air bag. A huge percentage of vehicle miles driven are "lost miles" and by making navigation systems required in all new vehicles (and offering a $300 tax rebate for retrofit systems essentially making them free) would dramatically reduce fuel consumption.
It's a different way of thinking about the problem, admittedly. But effective nonetheless.