traffic island

US /ˈtræf.ɪk ˌaɪ.lənd/
UK /ˈtræf.ɪk ˌaɪ.lənd/
"traffic island" picture
1.

a raised area in the middle of a road where traffic separates or turns, or where pedestrians can wait safely

:
The car swerved to avoid the traffic island.
Pedestrians can wait on the traffic island before crossing the second half of the road.