Town planners want advice from elders on how to make the town friendlier to older walkers. “What we hope to do is come up with recommendations to make the community more walkable for seniors, and to allow them to be more active and age in a healthy way,” said Nicholas Bulens, who is coordinating the “Safe Routes for Seniors” project for the town planning department. He said other communities have done things such as changing the timing on traffic lights to give seniors more time to cross streets, or adding a buffer between sidewalks and roads to make life more pleasant for pedestrians. The planning department is working with the nonprofit group WalkBoston on the project and invites seniors to bring their suggestions to a meeting Friday at 10 a.m. in the Whipple Senior Center. Participants can register by calling 781-682-6140.