America’s roads, especially around metropolitan areas, have long exceeded their capacity to move people and cargo efficiently. Having spent 3 hours on a six-lane super highway in SoCal to go just 60 miles, I now understand that better than ever. Part of the problem is all those long-haul trucks. They take up the space of four or five cars, get terrible gas mileage, and when they have an accident, it usually shuts down the highway. There has to be a better way.

And there just might. The Department of Transportation is working on an idea to promote marine highways. The idea is that smaller cargo ships could transport large loads longer distances, taking long haul trucks off the road. Could it work?