A traffic barricade is a type of barricade fitted with flashing lights and used to block excavations or road construction or other safety-related purposes. Formerly made of wood, or wood and steel, many now have structural members made wholly of plastic or composite materials.
One large multi-state company providing traffic barricade services was Houston-based, Highway Technologies, Inc., a US construction company that maintained offices in 33 cities. It filed for bankruptcy in May 2013, laying off 740 of its 825 employees. The company was founded in approximately 1983.
References
Traffic barricade Wikipedia(Text) CC BY-SA