Barrier Delineator Barrier delineators shall consist of a flat plastic reflector lens or reflective sheeting attached to a housing or bracket to facilitate the mounting of the delineator on concrete traffic barrier. The reflective surface shall be a minimum area of 9 square inches for reflectors and 12 square inches for reflective sheeting. The housing or bracket can be flexible or rigid, molded from a durable plastic material approved by the Engineer. Barrier delineators shall be one-sided for single direction or two sided for bi-directional. Reflectors shall be acrylic or polycarbonate conforming to AASHTO M 290. Reflectors shall equal or exceed the following minimum values of specific intensity: Observation Angle Entrance Angle Specific Intensity cd/ft-c
0.1 0 126 75 0.1 20 50 30 Reflective sheeting for barrier delineators shall be in accordance with Section 9-28.12.