controlled zone
nounUK /kənˈtrəʊld zəʊn/
US /kənˈtroʊld zoʊn/
A special area where someone is in charge of what people can do.
You cannot park your car here because this is a controlled zone.
RELATED WORDS
OTHER MEANINGS
2. An area where traffic rules are strictly enforced.
The city made the school street a controlled zone to keep children safe.
3. A place where only certain people are allowed to enter.
The airport has a controlled zone for staff only.
4. A region where pollution or noise levels are watched and limited.
The council set up a controlled zone to reduce smog downtown.