ABSTRACT
Time and cost-keeping on county roads, by K.W. McKay· (in Can· eng.. vol. 3 8, Mar. 18, 1920, pp. 307-308)
Costs
Cost of a bad road, by R.C. Barnett, (in Good roads, vol. 16, Aug. 31, 1918, pp. 77-78)
Cost of a mile of road, by G.A. Duren· (in Eng» contr.. vol. 51, May 7, 1919, P P. 485-486)
Charts : 1, Transportation costs by motor vehicles for varying grades and surfaces; 2, Annual cost of mile of road ··. ; 3, Total cost of traffic per ton mile ...
