タイトルまたは説明

Speed bump (speed hump, road hump, speed breaker, sleeping policeman, ) is a speed-reducing feature of road design to slow traffic or reduce through traffic. Our speed hump is a bump in a roadway with heights typically ranging between 2and 3 inches. The length of road bumps are typically less than or near to 1 foot (*0 cm); whereas road humps are longer and are typically *0 to *4 feet (3.0 to 4.3 m) in length. The use of speed bumps is widespread around the world, and they are most commonly found where vehicle speeds are mandated to be low. Because speed bumps are very effective in keeping vehicle speed down, Advantages of speed hump: 1. They are relatively inexpensive 2. They are relatively easy for bicycles to cross if designed appropriately 3. They are very effective in slowing travel speeds. Speed Humps are good for locations where very low speeds are desired and reasonable, and noise and fumes are not a major concern.