Rider is allowed to reenter safely. Rider has crashed and is on the ground or pavement. Crashed rider has returned to his feet and is mobile. Refers to a rider with mechanical problems moving at a very slow pace. It is customary to display a stationary yellow flag from station to station as the rider progresses around the course.
Rider stops on or adjacent to the race surface.
Usually caused by problem with the bike. Check for leaking fluids on the race surface, motion or assist rider to move off race surface to a safe location. Ask rider if he needs the crash truck to pick him up after completion of the race or practice session. Using these terms to identify which side of the track an event has occurred on will expedite the dispatch of emergency vehicles when necessary. Refrain from using the terms inside or outside, right or left, infield or outfield.