https://freesound.org/people/softwalls/sounds/384528/
Freesound - Moscow monorail_Interior.WAV by softwalls
Freesound: collaborative database of creative-commons licensed sound for musicians and sound lovers. Have you freed your sound today?
moscow monorailfreesoundinteriorwav
https://en.delachieve.com/the-moscow-monorail-transport-system-switches-to-the-timetable-why/
The Moscow monorail transport system switches to the timetable. Why?
moscow monorailtransport systemswitchestimetable