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Generally speaking, a safe and reasonable limit is set at or below the speed at which 85% of the drivers drive. Posting an appropriate speed limit simplifies the job of enforcement officers, since most of the traffic is voluntarily moving at the posted speed. Blatant speeders are easily spotted, safe drivers are not penalized, and patrol officers aren't expected to enforce unrealistic and arbitrary speed limits.
The truth is, most drivers drive at a speed that they consider to be comfortable and safe, regardless of the posted speed limit. The City usually installs signs at the entrance to a subdivision. Studies have shown that there are no significant changes in average vehicle speeds following the posting of new or revised speed limit signs. Furthermore, there is no direct relationship found between posted speed limits and accident frequency.
Because a stop sign causes a substantial inconvenience to motorists, it should be used only where needed. Studies have shown that, sometimes, after installing a stop sign there is an increase in rear-end collisions. Also, the stop sign may cause such an inconvenience that traffic detours through residential streets, parking lots, etc.
A little known fact is that the stop and go traffic resulting from the placement of stop signs will increase carbon dioxide emissions, thereby further impacting the air quality in your area.
Experience has shown that improving the intersection visibility by prohibiting parking near the intersection or removing other sight distance obstructions, is often more effective in reducing traffic accidents.
To install a traffic signal at an intersection, minimum criteria must be reviewed and met:
• Volume of vehicular and pedestrian traffic• Need to provide interruption to the major flow for side street vehicles and pedestrians• Accident history of intersection
Traffic actuated signals use detectors located in the pavement on the approaches to traffic signals to monitor and assign the right-of-way on the basis of changing traffic demand. These signals attempt to assign most of the available green time to the heaviest traffic movements. The majority of the signals in Temple Terrace are actuated signals, using detectors.