Louis Brandeis, Groesbeck v. Duluth, South Shore & Atlantic Railway Company…
“ The justification for a uniform fare per mile is furnished by the doctrine of averages; and the Legislature of Michigan made clear its purpose to apply the doctrine of averages in order to give to travelers the benefit of the two-cent fare on those portions of a railroad on which travel was light and the cost of carrying each passenger necessarily far in excess of two cents a mile. ”
