Post barrier is a type of traffic control device that can be easily moved and repositioned as needed. They are typically made from lightweight and durable materials and can be reflective for better visibility at night or in low-light conditions. Portable delineator posts can be used to mark the edges of construction zones, temporary traffic lanes, parking lots, etc. They can be anchored in place with a base weighted with PVC or sand. Portable delineator posts are commonly used in temporary traffic control situations, like roadwork, special events, and emergency situations.