Barrier
A barrier gate is a device used to block the road surface of an automobile highway and to stop the movement of vehicles (road users) across a railway crossing. It consists of a barrier beam and a drive mechanism. When a railway crossing is equipped with traffic lights, barrier gates serve as a backup system, preventing unauthorized passage of vehicles (movement of road users) across the crossing.
Source: "Instruction for Operation of Railway Crossings by the Ministry of Railways of Russia" (approved by the Ministry of Railways of Russia on June 29, 1998 No. ЦП-566)