stoppage

A pause or halt of some activity.

• The brakes were specially developed by the Westinghouse Air Brake Company to provide smooth stoppages under automatic operation.
• A "who-does-what" labour dispute at Swindon works during April led to a stoppage of work on the construction of the new 0-6-0 Type 1 diesel-hydraulic locomotives of the D9500 series and work had not been resumed as we closed for press.

Something that forms an obstacle to continued activity; a blockage or obstruction.