The cost of traffic calming techniques obviously will vary widely according to the region and the particulars of the street. A study of traffic calming in Boulder laid out price ranges for various techniques that can give a general guideline to those considering what approach to take. As to who pays, municipalities take different approaches based on their philosophies and their budgets. Some believe the cost of traffic calming devices should be paid out of their regular roads construction budget. Other cities say the homeowners on the street benefit most, and should at least help pay.
Many municipalities require neighborhoods to pay half the cost of traffic calming on their street.
Some, like Miami, Fla., and San Buenaventura, Calif., have programs in which neighborhoods can pay the whole cost. The following cost estimates are taken from the Boulder study, completed in 1996.