Public transport is buses and trains that anybody may pay to use. Travel by public transport.
It works where it is frequent, since nobody plans a life around a two-hourly bus. Public transport is the only way a city can move everybody, because roads run out of room first.
1nounpublic transportBuses and trains that anybody may pay to use.
“Public transport there stopped at half past six in the evening.”
public transport is a service.