Category:Traffic mile

Traf"fic mile. (railroad accounting)

Defn: any unit of the total obtained by adding the passenger miles And ton miles in a railroad's transportation for a given period; -- a Term and practice of restricted or erroneous usage.

Traffic mile is a term designed to furnish an excuse for the Erroneous practice of adding together two things (ton miles and Passenger miles) which, being of different kinds, cannot properly be Added. Hadley.