Below is a post by a person identified as Swede in a comment to a review of the book Post-Scarcity Economics in the LA Times on July 11, 2013.  Very creative infrastructure idea.

Two (public) projects badly needed are readily available:

1) A wide rail cross country railroad, Wide enough to carry 25 or 30′ wide containers, or prefabricated houses, or 1,000,000 gallon tanker cars, or refrigerated containers, or 1,000 cars, … transporting goods, and comfortable roomy spacious passenger cars. All at a mere fraction (as little as 1/10th) of the cost of airplanes, tractor trailers, busses and the like. Imagine traveling East Coast to West Coast for under $100, and in comfort with restaurants and other amenities available.

24 hours coast to coast possible. East coast terminal would be Fort Dix (converted to a HUGE industrial park, via long term leases to shippers, etc.). Ready short term road access to major ports and refineries(Baltimore, Philadelphia, Elizabeth, Camden, …)

West coast terminus just east of Oakland which has plenty available land and good shipping connections as well. Imagine Fedex, UPS, et al each having distribution hubs at each end.

Several interim stops to pick up drop off goods, passengers, …

Cost over a Trillion dollars …