Hi,
Where did you find the dates for this route ?
https://www.openhistoricalmap.org/way/198566560

The United Nations Avenue in Roubaix did not exist till the late 70s/80s. The part you've included did not exist till the mid to late 80s.

Hi,
What is the 1926 end_date for, maybe the name ?

Hi,
Here it is
https://forum.openhistoricalmap.org/t/multilinestring-multipolygon-relation-members-tagging/422

Hi,
Do you have a cartographic source for the route of the FWB in Münchwilen, Wikipedia does not cite any source for the old route offset from the road and the Swisstopo maps only show a roadside track as on the rest of the line.

NMVB lines or Buurtspoorwegen in Dutch, cannot be solely considered as tram lines, they're similar to interurbans in the US.

Hi,
No, I use tram when the rails are part of the roadway (mixed trafic, special site and road side) and light_rail when the rails are not part of the roadway (identical to railway lines).