[Tagging] duplicate road routes one named the other referenced

[Warin]

Hi,

I came across a duplicate of a road route.


Both have the same number of members.

One has the name, the other has the reference.

I delete one placing the relevant tags on the other.

https://www.openstreetmap.org/relation/540719

https://www.openstreetmap.org/relation/540719https://www.openstreetmap.org/relation/3081392/history


Question:

Is there a reason why 2 road route relations are required - one for the 
name the other for the ref???

Note the duplicate was created some 10 years ago ..  there may have been 
a rendering issue back then...


I did look on tag info and ~ 90% had name and ~ 75% had references .. so 
both name and ref must be used on some of these routes in OSM.

  I checked another main road nearby ,,, and came up with a similar but 
more complex situation.


The name Hume Highway is on 
https://www.openstreetmap.org/relation/2103184 no ref tag. (entire 
length covered)

The name 'Hume Highway (northbound)' is on 
https://www.openstreetmap.org/relation/9436122 (south of Albury)


The reference is on;


https://www.openstreetmap.org/relation/14879845 (north of Albury)

https://www.openstreetmap.org/relation/2103183 (north of Albury) .. 
could be a duplicate of the above

https://www.openstreetmap.org/relation/240718 (south of Albury)


I'd have to look harder for more infor on the Hume Hwy situation. But 
the Snowy Mountains Highway is fairly clear cut.