traffic island vs safety zone

traffic island and safety zone both are nouns.

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

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

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

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

traffic 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