A speed bump is a raised area on a road designed to slow down vehicles. Typically made of asphalt or rubber, speed bumps are placed in areas where lower speeds are necessary, such as residential neighborhoods, school zones, or parking lots. They help enhance safety by encouraging drivers to reduce their speed, thereby reducing the risk of accidents. Speed bumps come in various shapes and sizes, but they are usually about 3 to 4 inches high and 12 to 20 feet long. They are often marked with bright paint or signs to alert drivers. Proper placement of speed bumps is essential to ensure they effectively improve safety without causing excessive discomfort to drivers and passengers.