Evaluations of the QUARTET PLUS and TABASCO Projects in Europe found that transit signal priority reduced travel time for transit vehicles by 5 to 15 percent. Results Three projects investigated the impacts of public transit priority systems. Each of the projects demonstrated significant delay or travel time reductions for transit vehicles. Travel timeā¦ Content type Benefit Date Posted 09/21/2000 Taxonomy (ARC-IT) Transit Signal Priority (PT09) Geolocation links Toulouse, France | Turin, Italy | Munich, Germany | Gothenburg, Sweden