Never use Bing to correct data unless you've surveyed it. Especially house number nodes are never to be moved unless surveyed. Data from the Norwegian Mapping Authority (Kartverket) is usually of better quality. If you notice a large number of number nodes not aligning with Bing then Bing is most likely bad.
I have now fixed most of the bad edit and added more details. Bing in Masfjorden is terribly ofset and even a bit rotated so don't use it there.

Do not move house numbers imported from the Norwegian Mapping Authority unless you know it is wrong from gps or local knowledge. And never use Bing over data from "Kartverket". Only reason to do that is if you have local knowledge from survey or GPS that match Bing.

I have already corrected the house number nodes and roads moved in this changeset.

The number of digits have nothing to do with it. Its the background of the sign that is important. National roads and E routes use green. Primary county roads use white.
Keep in mind the Norwegian Public Roads Administration are sometimes slow to replace signs if they change something. Like the national road 7 over Hardangervidda. There are several number signs that are still the old white after over 5 years. The change is mentioned here: osm.wiki/No:Map_Features#Different_names_on_highways_in_Norway

Please revert the road class changes. They are wrong. E route and national highways in Norway are trunk class.

Please do not change road class unless you know how the system works in Norway. This road is a national highway and is therefore a trunk road. Please revert this change.

Why did you change this? This road is an E route road and thus should be trunk. All E routes and national highways in Norway will always be trunk or higher class.

Kva source har du brukt? Manuel leiting på nett?

Denne laga veldig mange duplikat. Ver så snill å samle data med eksisterande.

Waste of time to do any coastline edits with Bing in Norway. They are being updated slowly by better data from Norwegian Mapping Authority. Bing is also not adviced to use much in Norway as its often badly georeferenced.

Wikien kan endrast litt. Strava ligg inne alt og treng ikkje leggjast til i JOSM

Hah! Ja Bing er håplaust mange plassar. Ser at fv60 frå Hellesylt til Sykkylven er ganske ille. Skal sjå om eg kan ta den med NVDB/Elveg overlay ein dag.

Er nokre tettstader som er mappa med dårleg Bing som vil krevje masse arbeid å rette opp i.

Stemmer. Det var vel ledebil gjennom der ei stund.

Kvar har du dette frå?

http://www.vegvesen.no/Europaveg/e6halogalandsbrua/Nyhetsarkiv/utsetter-%C3%A5pning-av-e6-e10-tr%C3%A6ldaltunnelen

651 Volda-Nordfjordeid is still a national highway and thus a trunk road. Please revert this change.

This is a national highway and thus a trunk road. Please revert this change.
All national roads and E roads are trunks in Norway.

Ser ut til at det er way/340146784 som har feil

Her har du rota det til :P Bergen er full av skog :)

Er difor eg utsette Bergen :) Rekna med å bruke over ei veke total arbeidstid på den kommunen åleine pga alle eksisterande data.

What kind of fixes were these? If you altered the segments then you need to update the source and remove the date from Kartverket import. This is important for future updates of Kartverket N50 data.

Eit par ting her. Myr området ved dagens IKEA er jo ikkje myr så der burde du ha fjerna litt og laga nye linjer. Altså "merge". Er difor Bergen kan blir ei utfordring med å ta høgde for eksisterande data.
Når du la inn vatn så brukte du kun N50 og tok ikkje høgde for at Langavatnet vart fylt ut med bygginga av nytt kryss i Vågsbotn. Den endringa hadde eg lagt inn når eg la inn data for krysset.
Liavatnet og Forvatnet var også lagt in med god kvalitet frå før.