Proposed High Speed Rail lines
Proposed High Speed Rail lines plans in the USA started in 1965 with the High-Speed Ground Transportation Act. The Metroliner that runs between Boston and Washington DC was the first high speed service. High-speed rail is usually defined as over 110 miles per hour. Here is a list of some future plans.
California
CA Proposition 1A, passed in November 2008 authorized a high-speed rail line from San Francisco to Los Angeles through the Central Valley. [1]
New York State
New York already has high speed rail between Albany-Rensselaer and New York City Future plans include using the NYS thruway I90 right of way to provide high speed passenger train travel to Buffalo NY, Niagara Falls NY and maybe to the PA state line. [2]
Northwest and North Central
Future plans for a High-speed rail line from Chicago IL to Portland OR and Seattle WA part of this plan is to locate some of the high-speed rail lines in the proposed I98 right of way if interstate highway is built.
Pennsylvania
Future high-speed rail between Philadelphia and Pittsburgh are planned as part of the Keystone Corridor. High-speed rail services already exist between Philadelphia and Harrisburg.