Kistler WIM innovation wins accreditation

A major weigh-in-motion (WIM) innovation being featured here at the ITS World Congress by Kistler has already won accreditation from the International Organisation of Metrology (OIML). To address the ever increasing problem of road surface damage caused by heavy transport, WIM systems employing Kistler quartz sensors have been delivering valuable traffic data for many years. There is also a long tradition in using WIM for preselection of overloaded vehicles.
October 7, 2015 Read time: 2 mins
Tomáš Pospíšek of Kistler

A major weigh-in-motion (WIM) innovation being featured here at the ITS World Congress by 657 Kistler has already won accreditation from the International Organisation of Metrology (OIML).

To address the ever increasing problem of road surface damage caused by heavy transport, WIM systems employing Kistler quartz sensors have been delivering valuable traffic data for many years. There is also a long tradition in using WIM for preselection of overloaded vehicles.

However, Kistler says the chain has been missing the last link that would allow road authorities to implement automatic enforcement based on vehicle weight data or to introduce toll-by-weight models in a free-flow environment. This growing demand for certified WIM systems compliant with international standards has been recently met by Kistler’s OIML-certified WIM technology.

The company is the first WIM manufacturer to have received the International Organisation of Metrology (OIML) R-134 certificate for vehicle weighing with strip sensors. Supported by this certificate, Kistler WIM systems based on maintenance-free Lineas quartz WIM sensors and the Kistler WIM data logger can now be used for legal applications.

In the world of international WIM standards, Kistler says there is a significant difference in the definition of the accuracy classes. While COST323 and ASTM E1318 state that only 95% of WIM measurements need to fulfil the declared accuracy, the OIML requires all (100%) measurements to be in the requested accuracy class.

The Kistler WIM system meets OIML accuracy F5 meaning that for initial verification all errors are below ±2.5 % and during standard operation the system has a measurement error smaller than ±5%.

For more information on companies in this article

Related Content

  • Need for standardisation of toll classes
    March 2, 2012
    In a previous article Bob Lees of Idris Technology Ltd looked at the appropriateness of toll classes in relation to all-electronic toll fee collection. Here, he looks at how addressing classification standardisation could avoid downstream aggravation and cost
    Read More
  • IRD customised weight enforcement system goes live in Spokane
    June 14, 2012
    International Road Dynamics (IRD) has been working with the Washington State Patrol (WSP) and the Washington State Department of Transportation (WSDOT) to support delivery of a customised weight enforcement and commercial vehicle inspection solution which integrates vehicle identification, credential screening and data collection for the Spokane Port-of-Entry (POE) Weigh Station on I-90. Yesterday, the station’s grand opening was held at the POE which is located on Interstate 90 one mile west of the Washing
    Read More
  • MET Labs accredited as first test lab for tolling interoperability certification
    August 22, 2012
    OmniAir Certification Services (OCS) has accredited MET Laboratories as the first test lab in the 6C-for-Tolling Certification Programme. This scheme is designed to ensure tolling tag and reader interoperability (IOP) across equipment vendors and toll facilities that choose to deploy equipment certified as compliant to the 6C Requirements Document as defined by the 6C Toll Operators Committee. It is based on the ISO/IEC 18000-6 (Type C) RFID protocol.
    Read More
  • A global standard for enforcement systems – is it necessary?
    May 30, 2013
    Jason Barnes speaks to leading figures from the automated enforcement sector about whether a truly international standard for automated enforcement systems is necessary or can ever be achieved. Recent reports of further press controversy in the US over automated enforcement (see ‘Focusing on accuracy?’, ITS International raise again the issue of standards and what constitutes ‘good enough’ in terms of system accuracy and overall solution effectiveness. Comparatively, automated enforcement has always expe
    Read More

Highlighted Content