The vibration they cause lets a driver know they are crossing the centerline or fog line.
An added innovation for Route 111 would be the use of high-visibility striping — Grandmaison calls it “rumble striping” — painted over the rumble strips.
“You’re going to get more of the light reflected back to the driver,” Grandmaison said.
Another forum was held recently in Hudson, but was poorly attended.
DOT officials are looking to hear from residents of Windham, Salem and Hampstead who will be affected by the project.
“Hopefully, we will get more people,” he said.
Highway officials don’t intend to impede cyclists.
“We know that route is used by a lot of bicyclists,” Grandmaison said. “We’re doing everything we can to provide a safe area for them to use the roadway as well.”