As in other states, there are more seniors on the roads in Maine and they are driving into their 80s and beyond at far greater numbers than past generations. Nearly a quarter of Maine’s licensed drivers are over the age of 65. As a result, the number of Mainers aged 65 and older who are involved in fatal accidents increased by 17 percent between 2012 and 2016, according to a recent analysis by TRIP, a national transportation research group.