safety island vs safety zone

safety island and safety zone both are nouns.

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

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

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

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

safety island (noun)	safety zone (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