North Shore Trail Speed Limit Change Alert. The speed limit on North Shore Trail has been changed in an effort to improve pedestrian and resident safety along this road. The speed limit has been adjusted to 30 mph from Greenway to Heath Ave and to 35 mph from Heath Ave to 97. New speed limit signs have been placed along the road and while residents adjust to the new speeds limits. For the first few weeks enforcement of the new speed limits along North Shore Trail will focus on driver education. The solid blue and red lines on the attached map show the areas affected by the new speed limits