Railroads are the most capital intensive industry in the United
States. The industry spends billions annually in maintaining and
improving their infrastructure. From 1980 through 2003, Class I
railroads invested more than $320 billion on infrastructure and
equipment!
An Atlas covered hopper modified into a Stealth
Track Cleaner. Two independent spring-loaded cleaning feet set
diagonally, mounted slightly inward of rail center forces some rotation
of the foot so the whole surface is used rather than a straight line.