Citation

Sleath L, Edgar J. Proc. Int. Tech. Conf. Enhanced Safety Vehicles 1992; 1992: 434-438.

Copyright

(Copyright © 1992, In public domain, Publisher National Highway Traffic Safety Administration)

DOI

unavailable

PMID

unavailable

Abstract

This article briefly lists the lorry axle weight regulations currently in force in New Zealand, and describes the manpower and the methods used to enforce them. Estimates are also provided on the amount likely to be saved if enforcement levels were to be increased. Weighing by the Swedish Tellub portable scales is the predominant method for enforcement, and is carried out at roadside pits known as weighpits. There are 140 such weighpits in operation. Random roadside weighing is also carried out using thin lightweight wheel weighers. Only two weighbridges are available. However six new ones are under construction at primary produce areas such as container ports and the principal transport routes. The enforcement agency currently employs about 1100 uniformed officers whose duties include enforcement of all traffic regulations. A smaller unit of 44 men is dedicated specifically to heavy duty vehicle enforcement. The current cost of enforcement is $6.5M. If the level of overload, currently estimated at 10-12%, was reduced to 6% it is estimated that the total axle load would be reduced by 13%. This would produce an annual saving of $21M, assuming that the fourth power law is applicable.