Analysis of trends in truck fleet mix and the relative productivity and operational characteristics of the five- and six-axle tractor-semitrailers (3-S2 and 3-S3) are presented. Marked increases in the use of 3-S3 at the expense of the 3-S2 are observed. The percentage of 3-S2 in the heavy truck fleet dropped from about 70 % in 1991 to about 50 % in 1994, while the percentage of 3-S3 increased from 9 % and 20 % over the same period. These changes could be explained by: better operating efficiency measured by the potential pavement damage per unit payload; flexible payload handling capability; and higher productivity indicated by the potential payload capacity actually utilised. Current trends in fleet mix changes suggest that the rate of increase in the percentage of' 3-S3 in the truck fleet is likely to be maintained in the next few years. Possible implications for trucks operations under North American Free Trade Agreement is that the 3-S3 offers a clear productivity advantage over the 3-S2 and therefore suitable for long haul operations.
Utilisation of five- and six-axle tractor semitrailers in western Canada
Gebrauchsfähigkeit von fünf- und sechsachsigen Sattelkraftfahrzeugen in Westkanada
Heavy Vehicle Systems ; 4 , 1 ; 1-9
1997
9 Seiten, 4 Bilder, 2 Tabellen, 3 Quellen
Aufsatz (Zeitschrift)
Englisch
Utilization of five- and six-axle tractor semitrailers in western Canada
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