THE INFLUENCES OF VEHICLE WEIGHT AND DIMENSION (VWD) REGULATIONS ON TRUCK FLEET CHARACTERISTICS : LESSONS FROM CANADA

Abstract

There are various factors influencing the dimension, weight, and configuration characteristics
oflarge trucks operating on highway network. One of the most important factors is
vehicle weight and dimension (VWD) regulation governing those trucks. In Canada, the
governing VWD regulations have had a marked effects on truck fleet characteristics. In
examining the VWD regulatory system and its influences on truck fleet characteristics,
certain patterns emerge which will be potentially applied to trucking situation in Thailand .
This paper is prepared to present : the Canadian VWD regulations; the effects oi
VWD regulations on truck fleet selection, truck fleet mix, and gross vehicle weight
(GVW); VWD regulatory enforcement consideration; limitation of transferability; and conclusion.