Invoicing for RUC with data from weigh-in-motion scales

Currently heavy vehicles are randomly pulled off the road at weigh stations and inspected by NZ Police. These stations cover a wide range of the network, including areas with low levels of heavy vehicle traffic.

This approach does not give us enough data to detect or target non-compliant vehicles.

This has impacted heavy vehicle overloading, with a significant impact on road damage, maintenance, and unrecovered RUC.

Using data collected from weigh-in-motion scales, we’ll be able to identify RUC non-compliance 24/7. The weigh-in-motion scales work alongside the roadside cameras, which capture vehicles’ number plates.

The data we collect will enable us to target non-compliant operators – those whose trucks are repeatedly overloaded.

Weigh-in-motion scales an important part of Commercial Vehicle Safety Programme

The weigh-in-motion scales will be placed at each of the 12 Commercial Vehicle Safety Centres that will make up the Commercial Vehicle Safety Programme.

The sites will monitor 10 million truck trips and cover 46% of heavy vehicle kilometres travelled each year in New Zealand.

We anticipate that when all 12 safety centres are operating, we’ll increase the RUC revenue we collect by about $10 million a year: money that goes into the Land Transport Fund to build and maintain roads and roading infrastructure.

Accuracy of weigh-in-motion scales

We're installing 2 weigh-in-motion scales in the road at each safety centre to make sure our data is accurate. 

We're also: 

  • having our data models and assumptions reviewed by an expert third party
  • comparing trips captured in RUC audits of operators with weigh-in-motion data
  • regularly comparing weigh-in-motion data with safety centre weighbridge measurements.