Apparatus for installing a vehicle restraint at a desired location, the apparatus comprising a length of a pre-fabricated base unit locatable in or on the ground at the desired location, the base unit having a plurality of attachment positions at intervals for attachment thereto of at least one substantially vertical support post for supporting the vehicle restraint, wherein the base unit comprises a plurality of apertures or perforations to facilitate access to services located beneath the base unit and/or facilitate drainage of rain water.