silver zone; area near retirement homes
A wasei-eigo term for a road area near facilities for the elderly where drivers are urged to drive carefully. Often marked by signs.
wasei-eigo (Japanese-coined English), from silver zone
There's a silver zone ahead, so please slow down.
In silver zones, elderly people may suddenly cross the road.
Wasei-eigo from English 'silver' + 'zone', referring to an area where drivers should be cautious of elderly pedestrians.