Sleeping Policeman

Cinco de Speed Bump.

1. A speed bump is known as a sleeping policeman in British English, Maltese English and Caribbean English.
   
2. Technically speed bumps are a class of traffic calming devices that use vertical deflection to slow motor-vehicle traffic in order to improve safety conditions. Got that?
    
3. Traffic Calming?
   Yes. They combat speeding to make it a safer (or calmer) parking lot or neighborhood. But sometimes they are not driver calming.
   
4. June, 1906. Chatham, New Jersey had an early implementation of what might be considered speed bumps today.  They raised its crosswalks five inches above the road level.  The average automobile’s top speed at the time was around 30 mph.
    
5. We install and repair all forms of traffic calming devices. Including Speed HUMPS. Found on residential streets where they slow down vehicles but do not attempt to stop like speed bumps are designed to do.