HARRISBURG, Pa. (AP) - A 2013 law that increased gas taxes and motorist fees is helping 109 Pennsylvania municipalities improve their traffic signals.

The Wolf administration said Monday it was distributing $12 million in grants for the Pennsylvania Department of Transportation's Green Light-Go program.The grants pay up to half the cost to obtain modern technology, retime signals, install light-emitting diode signals and make other upgrades.This year's projects include pavement markings, traffic monitoring devices, audible pedestrian signals and new traffic signal hardware.