A built-in median marker is a robust traffic safety device designed to be integrated into the road infrastructure, providing clear visual guidance for vehicle and pedestrian navigation. Typically embedded directly into the roadway or median, it features a high-visibility reflective surface to ensure effective visibility both day and night. Constructed from durable, weather-resistant materials such as reinforced plastic or metal, it is designed to withstand heavy traffic and harsh environmental conditions. The built-in design allows the marker to be flush with the road surface, minimizing potential hazards while maintaining clear lane demarcation. Commonly used in highways and high-traffic areas, it helps delineate medians and guide drivers, enhancing overall road safety and traffic flow.