Near the top of the inrun, there is a "start gate" – a metal or wooden beam – on which an athlete sits and awaits their signal to jump via a set of traffic lights (green, amber, and red). These lights are operated directly by the assistant race director. An athlete may enter the gate when amber is shown. If red is shown after an athlete has entered the gate, the jury will have deemed the wind conditions to be unfavourable for a safe jump. The athlete must then carefully exit the gate as they had entered it and await another opportunity to jump. Failure to dismount the gate within ten to fifteen seconds of being shown a red light, or jumping without having been given the signal to go, will disqualify the athlete.