Might not want to let this program design your continental high speed rail system
Since it will try to serve as many destinations as can be on a reasonably direct route instead of having long, straight, empty sections for speed. Or then again, maybe that's actually what you want.
That water route from Florida to Puerto Rico would be an engineering marvel, though!
60,000 trips (of 20 or more miles each) through 750,000 randomly-chosen geotags, grouped with 10-mile radius, from the Twitter streaming API, August, 2011.