The safety car's main function, as its name implies, is to assist in maintaining safe track conditions. If an accident or incident occurs that is not severe enough to warrant stopping the race, but the safety car will be called on to the circuit to slow the cars down. It will come on to the circuit with its orange lights on and all drivers must form a queue behind it with no overtaking allowed. It is usually driven by an experienced circuit driver and carries an observer who is in permanent radio contact with race control.