The California Zephyr is a passenger train in the United States. The westbound train is Amtrak number 5 (ref:5) and the eastbound train is Amtrak number 6 (ref:6).
Since the reference number is not the same for both the eastbound and westbound route, I tried using a semicolon for the route master ref (ref:5;6)
However, Osmose flags this an an error since ref:5;6 does not match either route relation ref:5 or ref:6.
Any ideas on how to solve this “error”?
Amtrak number 5 relation:
https://www.openstreetmap.org/relation/8440320
Amtrak number 6 relation:
https://www.openstreetmap.org/relation/8440301
Route master:
https://www.openstreetmap.org/relation/905830