scope:

1.1. This document specifies the requirements for installation, calibration, performance and accuracy assessment, and test methods for Weigh-in-Motion systems. 1.2. This document applies to road vehicle Weigh-in-Motion (WIM) systems installed on or in the infrastructure. 1.3. This document applies to "HS-WIM" (High Speed WIM) systems, i.e., systems installed in one or more traffic lane(s) of a road, and operated automatically under normal traffic conditions, and to "LS-WIM" (Low Speed WIM) systems, i.e., systems installed in a specific weighing area, outside of the regular traffic lane(s), to which the vehicles to be weighed are diverted by a competent authority (such as police). 1.4. This document applies to on-site full WIM system performance assessment and model (type) approval, but excludes laboratory (product) tests or tests on parts of systems (e.g. sensors only). 1.5. The scope of this document covers all WIM needs, except trade purposes. NOTE: For trade and legal purposes, the OIML (International Organisation for Legal Metrology) recommendation applies (OIML, 2004 & 2006). For load enforcement of road vehicles, one or the other may be applied, depending on the national requirements and legislation.