Hello:
It appears time table from Zürich HB to Interlaken Ost via Luzern has changed due to construction.
It now requires transfer from Luzern to Meiringen, then Busing from Meiringen, Bahnhof to Interlaken Ost, Bahnhof.
I’m concerned about the transfer from Luzern Platform 3 to PL12.
Arriving at Luzern 08:51 then next train 09:06 leaving Luzern.
1/ DO we have enough time to walk from PL3 PL12?
2/ Does it require going down and up on stairway?
Thanks