in reply to Ondřej Caletka

I hereby thank @partialcontent@twitter.com for a plausible explanation, there's indeed underpass on that place.

(And here starts the madness of Twitter/Fediverse crossposting 😊) social.tchncs.de/@partim/10929…


Looks like there is an underpass below. My guess would be that the bedding is shallow and the sleepers are of reduced height with the rails providing extra stability. This used to be an application for wooden or steel sleepers which have a smaller height.