Jul 5, 2018 - 5:22 AM
in reply to lubov
Thanks for the link 1960man!
They are indeed busy bees this summer!
I can't say how much the construction will affect your travels. They are pretty good at limiting the impact of any work being done. The timetable does show when construction may affect your trip as well. So you can see which trips aren't "guaranteed" and may have shuttle buses involved. IE Lausanne to Bern.
Search the timetable for your dates and routes of travel to see how much it may or may not affect you.