This European Standard is a revision of EN 1317-2:1998. This standard includes improved impact test procedures and allows for the introduction of Families of Products and a report template. In order to improve safety the design of roads may require the installation of safety barriers including vehicle parapets which are intended to contain errant vehicles safely for the benefit of the occupants and other road users on sections of road and at particular locations defined by the national or local authorities. In this standard, several levels of performance are given for the three main criteria relating to the restraint of a road vehicle: * The containment level; * The impact severity levels; * The deformation as expressed by the working width and vehicle intrusion (including normalised values). The different performance levels of safety barriers including vehicle parapets will enable national and local authorities to specify the performance class of the system to be deployed. The description of a safety barrier including vehicle parapet system conforming to this standard incorporates the relevant classes and performance levels of the product. To ensure satisfactory product design it is highly recommended to consider the requirements of this standard and the references in Clause 2, together with the requirements of EN 1317-1. The evaluation of conformity and the durability should meet the requirements of EN 1317-5. (Author/publisher)
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