A track checker is a small railway carriage used in the United States and Ireland to audit the gauge and integrity of railway tracks.
[2][3] Track walkers are famously still employed by the Metropolitan Transportation Authority maintaining New York City Subway lines.
[4] A modern track checker, however, is a small carriage on wheels, about the same size as a Smart Car, and can be automated or driven by one engineer, who is also known as a "Track checker."
This carriage, reaching speeds of 30 to 60 mph (48.3 to 96.6 km/h), drives along the tracks of a railway.
This rail-transport related article is a stub.