Whether monitoring traffic counts, water and air quality or water lines for leaks, sensors and other evolving technologies are increasingly being used by cities in the Triangle and nationwide to make more informed, real-time decisions. Local government, industry and university leaders discussed these techniques at the first Triangle Smart Cities Summit on Tuesday. The event, hosted by N.C. State University and the City of Raleigh, focused on sharing technology and data to tackle regional problems in the future. “That’s not only a Raleigh issue, it’s a regional issue,” Raleigh Mayor Nancy McFarlane said. “So it’s incredibly important, I think, that we plan as a region.”