When bus priority was used with an adaptive signal control system in London, England average bus delay was reduced by 7 to 13 percent and average bus delay variability decreased by 10 to 12 percent. Content type Benefit Date Posted 12/06/2001 Taxonomy (ARC-IT) Traffic Signal Control (TM03), Connected Vehicle Traffic Signal System (TM04), Transit Vehicle Tracking (PT01), Transit Signal Priority (PT09) Geolocation links Twickenham, England | London, England