Abstract: Changeable message sign (CMS) structures are cantilever, interverted L-shaped structural components that are used to transmit information on road conditions to the driving public. The high-cycle fatigue failure of one CMS ...

Abstract: Changeable message signs (CMS) are supported by cantilevered, inverted L-shaped structural components composed of a vertical post and a horizontal mast arm. The high-cycle fatigue failure of one CMS structure in southern ...