engleski

Impact of Winter Maintanance on Retroreflection of Road Markings

Road markings represent one of the most important safety elements of modern roads that lead and regulate road transport, separate lanes, prohibit certain maneuvers and behavior, delineate the edges of the pavement and provide information to participants in traffic. Road marking must be visible in all weather and traffic conditions to be useful and fulfill its functions. The retroreflective properties of the markings represent their most important characteristic. Marking visibility is closely related to their durability or service life that is affected by several factors. One of the factors is winter maintenance activities, or removing snow form roads. The mentioned factor is subject of the analysis carried out in this paper. The analysis was made based on the results of retroreflection measurementsof painted road markings before and after winter on state roads in Republic of Croatia. The research results show that in similar traffic conditions, retroreflection of the painted road markings was significantly degraded on the roads with winter service activities in relation to the roads without winter service activities. The average absolute difference of the retroreflection degradation of painted road markings on the roads with and without winter service is 17.40% for the center lines and 21.01% for the edge lines.

road markings; retroreflection; winter maintenance; traffic safety

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