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eLibrary

High Speed Rail (HSR) in the United States

There are two approaches to High Speed Rail: improving existing tracks and signaling to allow trains to travel somewhat faster, typically to as much as 110 miles per hour, generally on track shared with freight trains; and building new tracks dedicated exclusively to high speed passenger rail...

1985 Track Survey: National Railroad Passenger Corporation (Amtrak)

From September through December 1984, the FRA conducted an intensive survey of all mainline track utilized by Amtrak (see fig. 1). Three automated track geometry railcars -- the latest in railroad state-of-the-art inspection technology -- measured track gage, cross level, wrap, profile, alignment...