The traffic delineator post, often referred to simply as a delineator, is a vertical marker used to guide and channel traffic. These posts are typically mounted on the road surface or affixed to barriers, providing visual cues to drivers and pedestrians. Traffic delineator posts come in various designs, including flexible and rigid options, and are commonly made of materials such as plastic or rubber.

The primary purpose of traffic delineator posts is to enhance visibility and define traffic lanes, especially in areas where traditional road markings may not be sufficient. They are particularly useful in construction zones, temporary traffic diversions, or areas with changing road conditions. Reflective strips or coatings on delineator posts improve visibility, especially during low-light conditions.

The flexibility of some delineator posts allows them to yield upon impact, reducing damage to vehicles and minimizing the risk of injury. Their versatility makes traffic delineator posts an essential tool for traffic management, contributing to safer roadways and effective organization in various scenarios.