The Israeli app Green Wave tells drivers the ideal speed to drive at, in order not to have to stop at a red traffic light. Green Wave came third in Hyundai’s i-Way hackathon, winning 15,000 shekels. The app uses municipality data and a crowdsourced database.
http://www.timesofisrael.com/israeli-apps-promise-never-hit-a-red-light-again/