Types of speed bumps
Speed bumps are among the most important traffic safety measures used to regulate vehicle speed and reduce accidents, especially in residential areas, schools, and areas with high pedestrian traffic. Speed bumps vary in design, shape, and size, and each type has specific uses suited to particular environments.
1. Speed Bumps
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Description: Clear and relatively high (5-10 cm) ridges on the road, with a full width extending across the lane or road.
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The goal: to force the driver to stop or drive at a very low speed (usually less than 15 km/h).
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Usage: Parking lots, school entrances, narrow residential areas.
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Features: Very effective in reducing speed, but may cause vibrations to vehicles.
2. Surface bumps or smooth surfaces (Speed Cushions)
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Description: A series of small, separated bumps, less than the width of a full lane.
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The goal: To reduce the speed of large vehicles (such as buses) without significantly impacting smaller vehicles.
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Usage: Main streets that allow the passage of heavy vehicles.
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Features: Allows some vehicles to pass without significant slowing down.
3. Gradual Speed Tables
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Description: A raised, flat surface larger than traditional bumps, resembling a flat table that can be up to 3-4 meters long.
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The goal: To reduce vehicle speeds while providing greater comfort for the driver and passengers.
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Usage: Residential areas, pedestrian walkways, road intersections.
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Features: Safe for pedestrians and provides a clear crossing path.
4. Rubber Speed Bumps
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Description: Made of rubber or hard plastic, they are installed on the road without the need for major modifications to the asphalt.
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The goal: To reduce speed easily and with high installation speed.
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Usage: Parking lots, building entrances, private roads.
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Features: Easy to install and remove, reusable.
5. Low speed bumps (Speed Humps)
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Description: Lower than barrier bumps, with a height ranging from 3-5 cm.
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The goal: To reduce speed moderately without causing significant inconvenience.
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Usage: Residential neighborhood streets and internal roads.
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Features: More comfortable for passengers, but less effective at slowing down.
6. Raised Crosswalks
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Description: A combination of pedestrian crossings and speed bumps, where the crossing is elevated to reduce vehicle speed and increase pedestrian safety.
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Objective: To protect pedestrians and reduce vehicle speed at pedestrian crossing points.
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Usage: Commercial areas and schools.
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Features: Combines the function of a speed bump and a safe pedestrian crossing.
Tips when designing or choosing the type of speed bump:
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Studying traffic flow and the types of vehicles passing through.
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Consideration should be given to passenger comfort and vehicle safety.
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Coordination with relevant authorities for licensing and implementation.
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Place clear warning signs before speed bumps.