Nähtavusnõue

Nähtavusnõue, often translated as visibility requirement, refers to the conditions that ensure a road user, such as a driver or pedestrian, can clearly see and be seen by others and their surroundings. This concept is crucial for road safety, aiming to prevent accidents by providing adequate time for reactions to potential hazards.

In the context of road design, nähtavusnõue dictates minimum sight distances needed at various locations, including intersections, curves, and railway crossings. These requirements consider factors like the speed limit of the road, the stopping distance of a typical vehicle, and the height of potential obstructions. For example, at an intersection, drivers must have a clear line of sight to oncoming traffic and crossing pedestrians or cyclists. Similarly, on curves, the curvature and surrounding terrain must allow drivers to see far enough ahead to react to anything that might emerge from behind the bend.

Nähtavusnõue also extends to lighting and signage. Adequate street lighting is essential for nighttime visibility, allowing drivers to perceive road markings, obstacles, and other road users. Effective signage, such as warning signs and speed limit indicators, also contributes to nähtavusnõue by informing road users of potential dangers and road conditions, thus enhancing their ability to see and understand their environment. Compliance with these requirements is a fundamental aspect of traffic engineering and road safety management.