Small town on major two lane highway. Policeman sits in car at city hall as though parked in the city hall parking lot and at a local corner store. There is a large margin on both sides of the road, 15+ feet, to allow practically any kind of foot or bicycle traffic. The speed zone is less than a mile long. There is almost no margin for error for speedometer or other driver or vehicle issues given by the policeman. The speed limit is 45. 47 will get you a ticket every time.