To add to that, public transport based on trains is and always will be a source of noise, even if they are purely electrical
No matter if streetcars/trams downtown, or so called 'light-rail'/fast-rapid-mass-transit reaching out into the periphery, or neighbouring towns.
They can also be buried by applying that strange concept called 'subway'.
Hrrm, what happened to all those hyped loops, btw?