Automotive
A stunning scene of a former C and O cantilever signal glowing brightly against the snow along the CSX main line near Pence Springs, West Virginia on February 19, 2012.
In September of 1825 the steam-powered, Stockton and Darlington began service on a standard-gauged right-of-way of 4-feet, 8 1/2-inches.
The width was based upon ancient Roman chariot roads and championed by locomotive builders George and Robert Stephenson, earning it the name "Stephenson Gauge."
http://www.american-rails.com/railroad-infrastructure.html
