Originally Posted by
spare_wheel
Not always. In dense urban centers traffic signals can be reconfigured to increase compliance. For example, downtown portland has signal timing that pretty much makes it impossible to drive over 17 mph (although some idjits still try).
This is especially effective when there are signs indicating the speed to go to get all green lights. E.g. I remember a German town with speed limit signs saying 50 km/hr but also 'Green Wave - 45 km/hr'.