Is the track gauge really narrow, or is that just the perspective making it look that way?
Its Meter gauge
Stadtbahn Stuttgart uses “normal track width” of 1435 Millimeter. They transitioned from a much smaller track width several decades ago and used special tracks in the meantime (mixed tracks which supported both track widths). I think this picture may show some leftover mixed track (note that it’s showing a steep climb where exchanging the tracks may not be easy).
Got this info from a quick glance at German Wikipedia. Maybe delve deeper if you’re interested:
https://de.wikipedia.org/wiki/Stadtbahn_Stuttgart
EDIT: Forget most of my post - this is a special track for steep climbs using a special friction track in the middle that is being grabbed by a special wheel under the wagon. Line 10 is the only line in Stadtbahn Stuttgart that uses this feature. Track width indeed is a metre (1000 millimetres).
They did a great job designing these after 30 years of rectangular boxes. Took a good amount of time, not least due to accessibility features from what I’ve read.
Then barely a few years later they had to go and replace them again with a series that looks like a children’s plastic toy in comparison.
I Like This New design :3



