IndyCar and NASCAR both will use rain tires if they are at a road course. However, if the rain is severe enough where standing water, visibility becomes an issue, or if lightning is detected within a 12 km radius of the circuit, the race will be stopped. At the 2014 Honda Indy Toronto Race 1, IndyCar attempted to wave green and yellow together to start the race under the Safety Car. After numerous incidents, IndyCar decided to abandon the race and wiped the slate clean for Sunday with two races. IndyCar also has cancelled qualifying at a circuit because of lightning, primarily as a safety issue with electronics, radio communications, teams on pit lane, race marshals, and spectators.