From The New York Times, 02/16/2011:

The 85-mile Tampa-to-Orlando segment, on which trains would travel as fast as 170 miles per hour, was to be the showpiece of that initiative — in part because the government already owned much of the right-of-way along the route, which would allow it to be built relatively quickly, and because the fast-moving train would contrast with slow-moving traffic along Interstate 4.