Abstract: The vertically-arranged beacon plate or the sign support of the transportable traffic beacon is designed to be resistant to breakage and restorable to its original shape after distortion. The essentially flat and elongate beacon plate, which is clipped by its narrow side into a corresponding recess in a base plate in which it is secured by locking means, is made of a high impact-resistant thermoplastic or an elastomer-modified thermoplastic, and has vertical edge profiles. These are preferably hollow profiles for receiving reinforcement elements with, if necessary, weak points, the elements being easily replaceable after damage; for this purpose they can be elastically clipped in the hollow edge profiles with longitudinal slots. Additional reinforcement elements made of a tough, deformable material, e.g.