mass transit

US /ˌmæs ˈtræn.zɪt/
UK /ˌmæs ˈtræn.zɪt/
"mass transit" picture
1.

a system of large-scale public transportation in a city or town, such as buses, trains, and subways

:
Many commuters rely on mass transit to get to work.
The city is investing in expanding its mass transit system.