THE IMPECT OF THE APPLICATION OF COMBINED ROAD MARKINGS ON THE LEVEL OF SERVICE OF TWO – LANE ROADS

Abstract

When designing two-lane roads, it is important to aim for several objectives, such as increasing safety, improving accessibility, reducing environmental impact, and enhancing the flow and capacity of the road. According to the HCM methodology, one of the key parameters that significantly affects the level of service of two-lane roads is the percentage of the road length where overtaking is prohibited. In no-overtaking zones, it is possible to use combined road markings, which allow vehicles from one direction to overtake while prohibiting overtaking for vehicles from the opposite direction. Alternatively, a solid centerline can be used, which prohibits overtaking for all vehicles. In this study, no-overtaking zones were marked with different types of centerlines. In the second part of the study, the impact of using solid centerlines versus combined centerlines in no-overtaking zones on the level of service of two-lane roads was examined