If you’ve noticed a different traffic flow driving around Greeley, this might be the reason. The Greeley Tribune reports the city recently updated the signal timing at 63 intersections across the city in an effort to improve traffic flow, reduce congestion and make the roads safer. The changes are expected to save Greeley drivers more than 204,000 hours each year. It had been about eight years since the city had retimed the lights, and with improvements in technology, the city was able to fine-tune lights in a way it couldn’t last time…