Adaptive signal control in Sao Paulo, Brazil, increased speed by 25 percent and reduced delay by 14 percent. Six years after the small university town of Oviedo, Spain showed new adaptive traffic control could reduce traffic delays, two systems were installed and operating in Brazil and Spain. The city of… Content type Benefit Date Posted 09/21/2000 Taxonomy (ARC-IT) Traffic Signal Control (TM03), Connected Vehicle Traffic Signal System (TM04) Geolocation links Sao Paulo, Brazil