You can probably find it in some '60s future somewhere. Why would you build a perfectly fine tunnel and use that for irregular traffic, when you can hide the traffic and have the street for mixed use [-1]? We have had trash chutes [0] and AVAC [1] for centuries in Sweden (not always connected unfortunately). My local garbage truck have one of those robotic arms, and I don't live anywhere fancy. So I can't say I get it.

[-1] https://en.wikipedia.org/wiki/Living_street [0] https://translate.google.com/translate?langpair=en&sl=sv&tl=... [1] https://en.wikipedia.org/wiki/Automated_vacuum_collection [2] https://commons.wikimedia.org/wiki/File:Sopbil_skelleftea.jp...