Amtrak Acela

From Wikipedia: The Acela Express (Colloquially abbreviated to Acela) is Amtrak's high-speed rail service along the Northeast Corridor (NEC) in the Northeast United States between Washington, D.C., and Boston via Baltimore, Philadelphia, and New York City. Acela Express trains are the only true high-speed trainsets in North America; the highest speed they attain is 150 mph (240 km/h), though their average is less than half that speed. The Acela has become popular with business travelers, and by some reckoning has captured over half of the market share of air or train travelers between Washington and New York. Between New York and Boston the Acela Express has up to a 54% share of the combined train and air market.