While traveling north on I-495 After passing Bellingham, Exit 18, and before the Milford, Exit 19, at approximately 1 mile on the right, the troopers will stand in the breakdown lane. Usually two troopers one using a LIDAR device and the other stepping into traffic and pulling over the vehicles. Mind you I only travel this route periodically and I see this speed trap at least 3 to 4 times a month.