Horizontal painted pavement marking materials are applied to road surfaces to provide safe guidance for the travelling road user public. Such delineation systems may create a potential hazard if the differential friction between the marking and the pavement exists, particularly for cyclists and motorcyclists. Requirements for performance based contracts for pavement markings are fast approaching, with little data to assist the specifying engineer on realistic intervention levels that can deliver safe performance outcomes. To provide the anticipated levels of skid resistance usually requires a surface application of angular particles. These angular particles may create shadows over the surface applied glass beads and render the line invisible during night conditions. The challenge has been to find a balance between angular and spherical surface applied particles, in size, quality, quantity, ratio and method of application, that can provide durable cost effective horizontal pavement markings with excellent dry night delineation, excellent wet night delineation and a high level of skid resistance. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E208431.
Samenvatting