Experimental Investigation on Road Marking Distress Evolution: Beyond Testing, Quality Assurance and Maintenance Improvement

Road markings should always be visible, readable and effective. Their performance is related to the quality of materials, their application and textural characteristics of the road pavement. The evolution of properties (visibility, skid resistance, color and durability) also depends on the product, its resistance to traffic abrasion, the application technique and adhesion between coating and substrate. This paper analyzes the results of a wide campaign of tests (over more than 4,000 km of lines) on road marking performances, with the purpose of evaluating a model for design and maintenance management. Mainly post-sprayed coatings are investigated with regard to quality controls, their frequency and protocols, according to the standards in force.