Â© PMA of Georgia 2010. Venting. This concept of the plumbing system breathing (while. conceptually accurate) is somewhat confusing to a. craftsperson when trying to understand specifically what. the purpose of the vent system is.
Definition of traffic jam. : a situation in which a long line of vehicles on a road have stopped moving or are moving very slowly stuck in a traffic jam.
A: A sobriety checkpoint, also called a D.U.I. roadblock, is a roadblock set up by law enforcement officers in order to stop every vehicle or a subset of vehicles (every third, every tenth, etc.) passing through the checkpoint for the purpose of questioning drivers about driving under the influence of alcohol or drugs.