safety zone vs safety island

safety zone and safety island both are nouns.

Word	Noun	Adjective	Verb	Adverb
safety zone	Yes	No	No	No
safety island	Yes	No	No	No

As nouns, safety zone and safety island are synonyms defined as:

safety zone and safety island: a curbed area in a roadway from which traffic is excluded; provides safe area for pedestrians

Other synonyms of safety zone include safety isle, traffic island.

safety zone (noun)	safety island (noun)
a curbed area in a roadway from which traffic is excluded; provides safe area for pedestrians	a curbed area in a roadway from which traffic is excluded; provides safe area for pedestrians