From Longman Dictionary of Contemporary Englishrun a (red) lightrun a (red) lightinformal to drive quickly through a red traffic light instead of stopping → run
Examples from the Corpus
run a (red) light• An old man who worked in a poultry store was stopped for running a light.• Jones still faces a misdemeanor charge of reckless driving and an infraction for running a red light.• When you run a red light, a few coins save a fine.• The bigger issue is, will San Franciscans still be allowed to run red lights across Market Street?• The running lights flashed off and a thick silence filled up the day.• Men are more likely to run a red light, forget to signal, or drink and drive.• It was going to sea with only its running lights on.• For every motorist who runs a red light, there are five pedestrians who do it. 