[RightWhale]

Licensed drivers in the United States have increased by 64 percent since 1970, and vehicle miles by 131 percent. Yet during that period the nation's road mileage has grown a scant 6 percent

There's the solution. Build roads. There aren't enough roads.

[dennisw]

One of the ways Japan tried to get out of it's interminable recession was to pour concrete. Meaning public works. A lot of it. Many irrigation ditches there are now concrete lined. (Not joking)

 Pour concrete, build roads, pave over everything!