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Abstract

The need of limiting speed is based on multiple reasons related to safety. The practice of use of speed limiting devices (e.g.: speed humps/speed bumps) is very contradicting in terms of achieving the main goals, as safety without increasing pollution. The study also showed that selection of speed limiting devices is often intuitive, but not based on adequate physical model and accurate calculation and design. Actual practice today shows that the safe speed passing a speed hump/bump is often differs from the assigned speed limit. This leads to drivers’ slowing down before the speed humps and their acceleration in the space between speed humps. As a result, the purpose is not achieved, the safety is not improved, the environment becomes more polluted and the spent money wasted. The study was made on reasoning of the shape and dimensions of speed limit enforcement devices to match the assigned speed limit.

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