Reinforcement devices and systems for holding a traffic control assembly in compression are provided. Each pedal is mounted in a foldable manner to a crank arm which in turn is mounted to the drum by a pivoting mechanism allowing the pedals to be moved between an operative configuration in which each pedal projects outwardly from the drum, and an inoperative configuration in which each pedal and each crank arm is contained within the interior of the drum. 7 eV or less, and a dopant having a light emitting property related to a triplet state, the dopant containing a metal complex with a heavy metal.