How far apart are distance markers placed in the Pavement Reference Marking System (PRMS)?

In the Pavement Reference Marking System (PRMS), distance markers are strategically placed at intervals of either 50 or 100 feet. This standardized spacing is crucial for providing consistent and accurate guidance for various roadway activities, including navigation and distance estimation. Such markers aid drivers in understanding their position on the road and can be particularly helpful for emergency services and delivery operations, which rely on precise distances.

The choice of 50 or 100 feet allows for flexibility based on roadway design and visibility conditions, ensuring that the markers effectively serve their intended purpose. In contrast, other options suggest distances that do not align with the established standards of the PRMS, making them less relevant for this specific marking system.