This report contains the findings of a study on fatigue resistance of cantilevered signal, sign, and light supports. The report includes design examples illustrating the application of the fatigue provisions of the AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals; guidance on design, installation, inspection, and maintenance of these structures; and recommended specifications for anchor rods. (A) This report may be accessed by Internet users at http://gulliver.trb.org/publications/nchrp/nchrp_rpt_469-a.pdf / http://gulliver.trb.org/publications/nchrp/nchrp_rpt_469-b.pdf
Abstract