Road Bumps, Humps and Block Usage
- Speed Bumps
- A speed bump (also referred to as speed breaker or road bump) typically has a height ranging between 3 to
4 inches. The distance 'across' the speed bump is usually less than 1 foot. On road with curbs, a space if often left on either side to allow for
drainage.
- Due to the more assertive design of speed bumps they are typically used in parking lots and are designed to slow cars to 5-10
mph.
- Speed Humps
- Speed humps have a similar height (between 3 to 4 inches) but a much wider distance 'across', typically
between 10 and 14 feet.
- Their gradual slope makes speed humps ideal for street usage and they are designed to slow cars to 15-20 mph. They
can be crossed at slower speeds withou damage to the car but if traversed too fast, there is less absorption by the suspension of the car.
- Parking Blocks
- Also referred to wheel stops and car bumpers. These have a height ranging from 4 to 6 inches and
typically the width does not surpass 6 to 6.5 feet to allow a 3 foot passage on either side for pedestrians. They should have a contrasting color
from the surface they are placed on.
- Used in parking lots to provide drivers a visual indicator for parking their cars.
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