traffic calming

US /ˈtræf.ɪk ˌkɑːm.ɪŋ/
UK /ˈtræf.ɪk ˌkɑːm.ɪŋ/
"traffic calming" picture
1.

physical measures taken to reduce the speed and volume of traffic, especially in residential areas, to improve safety for pedestrians and cyclists

:
The city implemented new traffic calming measures, including speed bumps and narrower roads.
Residents requested more traffic calming in their neighborhood due to speeding cars.