KwaZulu-Natal Freight Databank

This Data Bank provides one with information about authorities within the province, industries, air freight, ports, cross border, rail and roads sectors in the KZN. The statistics will provide you with detailed information about the movements of freight in the province.  (Last Updated : 2013)

Introduction to Road Freight



The road freight corridors of KwaZulu-Natal are some of the busiest routes in South Africa. The N3/N11 corridor between Durban and Gauteng and the interior handles approximately 36 million tons of road freight per annum.

The N2 corridor route from Richards Bay to Mpumalanga via Piet Retief, is an important route for timber, coal and other commodities and handles approximately 13 million tons of road freight per annum.

To the South of Durban, the N2 corridor links KZN to the Eastern Cape and the southern regions of South Africa and handles approximately 5 million tons of road freight per annum.

From the surveys conducted in this project it is apparent that road traffic volumes continue to grow on most routes.

Survey Sites

55 strategic sites for freight surveys were selected. The sites selected cover the major Freight corridors in the KwaZulu-Natal Region.


  • Freight surveys ran between sunrise and sunset (generally 12 hr) periods
  • 7 Day Electronic Classified counts were operational during the period of the manual surveys
  • The 7 day counts were used for factoring the results of the manual surveys from 12 hours to 24 hours.
  • Permanent traffic monitoring site data was then used to factor the 24 hour results to annual figures and for determining the annual heavy vehicle growth.
Data collected included
  • Vehicle class (number of axles)
  • Vehicle type (flatbed, tipper etc)
  • Commodity (what the vehicle was carrying). This was not always possible due to tarpaulins covering the load etc.
  • Specific details of car carriers were taken i.e. how many vehicles on the carrier
  • Specific details of container vehicles were taken i.e. how many containers and the sizes.

Vehicle loads (payloads) were determined by using low profile scales and the Gross Combination Mass together with individual axle loads were determined. The sample size of the heavies weighed was largely dependent on the Road Traffic Inspectorate pulling the heavies into the survey zone. In order to determine the payload for each vehicle the Tare mass of the vehicle class was subtracted from the Gross Combination mass.

The results were used for determining:

The payloads
The level of overloading

Detailed reports can be found here