Do Flashing Speed Signs Have Cameras? They are a radar device that collects speed data. There’s no camera,” said Sgt. … They also gather data about how fast cars are going and sometimes even how quickly they slow down, to help police find trouble spots and plan out enforcement details. Do speed feedback signs work?
What Is The Purpose Of Recommended Speed Signs? Advisory speed signs tell you that conditions ahead may make it unsafe to drive at a faster speed. You should slow down to the recommended speed. In bad weather or heavy traffic, you should reduce speed even more. What is a recommended speed sign? Even if the
Do Flashing Speed Signs Work? Do flashing speed signs work? Some studies have shown ongoing speed reductions even after radar signs were removed. In Riverside, California, researchers observed a 6.1 mph reduction at the radar speed sign trailer and a 2.9 mph speed reduction down the street past the trailer. Do electronic speed signs work?