Do You Know Speed Bumps?
Speed bumps are a more radical traffic stabilization option than speed humps, so they are useful in places where pedestrians and cars coexist closely, such as parking lots and driveways. Speed bumps usually reduce traffic speeds to 2-10 miles per hour, giving people and cars time to react safely to each other. Speed bumps are rarely used on public roads because they require vehicles to stop at close distances past them and cause damage to cars traveling at normal speeds.
Speed bumps may be 2 to 4 inches high, but they travel much shorter distances than speed humps. These obstacles will be pressed under the tires in less than half of a full wheel rotation, and the standard width is between 6 inches and 2 feet. The ratio of height to distance traveled will cause a sudden bounce in the vehicle, causing passengers and cargo to shake. Since the speed bump is always much smaller than the vehicle passing over it, each axle will pass separately, which means that a speeding car will experience two substantial shocks.
Speed bumps, like their more stable brothers, can be placed at intervals to keep slowing down. They are often separated wisely because they are more uncomfortable at any speed and are used in smaller geographic areas.
Generally, speed bumps are installed at crowded people, highway intersections, or important special sections.
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