Please undo this. These are not toll_booths. I am updating all to toll_gantry as that is the proper tagging.

The tag might be removed as the system is complicated in some areas like Oslo with two groups (inner and outer rings) and Trondheim with 7 toll groups.

Tagging of toll points lack a lot of good documentation on wiki unfortunately. We had to basically pick something that works. Many toll projects have a one hour grace period. If you pass the same or other toll point in the same group you do not pay again.

There is a separate tag for playgrounds. Please use it.

Road class is not really set based on the quality of the road. County roads are normally secondary or primary if signed with numbers less than 1000 in new system.

I do plan to map all these dams and intakes, but there are over 3800 of them in Norway :)

Can you actually walk across on the dam?

Wrong mapping. Those are river intakes for Kvittingen hydro plant. Generator is in the power plant house/hall and already mapped.

Sorry, not headrace, but down to the penstock

This is not a pipeline. These are blasted tunnels down to the headrace.
osm.wiki/Tag%3Ausage%3Dheadrace

Just a small heads up. NVE data has a lot of inconsistency. 24kV is the rated voltage. Some companies report this vs nominal. Nominal for minor lines is either 11 or 22kV.
osm.wiki/WikiProject_Norway/Norwegian_Infrastructure_networks#Voltage_notes

22kV lines are minor and normally poles. Anything below 45kV really is. There are exceptions for tower on minor line though: https://goo.gl/maps/Nf9amTyPcMx
Please read the wiki page for power infrastructure in Norway: osm.wiki/WikiProject_Norway/Norwegian_Infrastructure_networks

Please provide a proper description of what is changed. Not just "changing"...

Hei og velkomen til OSM. Vær forsiktig med å redigere relasjonar når du brukar iD editoren(redigerer rett in nettlesar). Den lagar ofte masse rot. Vil anbefale JOSM til meir avansert redigering. Har fiksa alle feil ;)

Even so, there was a start date on the building that should be a clue. It was set as 2017. Also make sure you use Norwegian Orthophoto as background imagery in Norway. Unless the imagery_used value bugged the changeset is showing Bing.

Please do not change things without local knowledge, or contacting previous mapper. There is a new swimming hall built here now. I have reverted your edit already btw.

Er du på IRC? kom innom på irc.oftc.org #osm-no og helse på oss andre som er aktive ;)

Har du lest på på wikien? osm.wiki/WikiProject_Norway/Norwegian_Infrastructure_networks

This is not a minor line. 33kV and below are minor.

Om du høgre klikker så får du ein meny som lar deg lage rette kantar på bygningen ;)