Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Red lights in Speedway. There are six in total around the track. Their main purpose is to signal to the riders that the referee has decided to stop the race for safety reasons.
a red traffic signal that tells drivers to stop:
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions