This stretch of country road can be safely driven at 45-50 mph, but it is posted at 30 and 35 mph. The police officer that pulled me over said to me "This is Groton, you do realize that this is all we have to do?" Groton sits on 2 state highways that are commute routes to Boston from the MA/NH border towns and there are plenty of speedtraps in this town aside from the one that I was pulled over on.