Speed Display Radars’ Impact on Speed Reduction on District Roads at Settlement Entrances

Speed is one of the main causes severe traffic accidents, especially those involving vulnerable road users. display radars are engineering solutions that aim to reduce speed flow at locations where it crucial. A before and after study was conducted six on district roads in Republic Croatia. As part research, vehicles’ speeds were measured for two weeks, during which devices’ displays switched off week another, however, recorded collected all vehicles passed research period. The a total 182,352 vehicles. test performed determine effect radar potential reduction. results did not show statistically significant difference average hourly most locations, they showed 85th percentile approximately 1 3 km/h. Therefore, can be concluded had positive reducing speeds. Additionally, some decrease number limit violators found proved between share flow.