Hi
The relation/16692137 pedestrian .. that is not the way it is done. This has shared segments on the outer ways...

There should be an outer way or more than one. But they should not share segments. Then there can be inner ways to make holes in the area.

Read osm.wiki/Relation:multipolygon

HI
The guide is one feature = one OSM entry

So one way for the roof, layer=1
and another way for the hall?

I have deleted the relation and tagged the outer way for the building footprint.

relation/17064124
Stops in wrong order... Syd Metro West from Hunter St ... but first stop is Westmead .. and exit only.

This and 2 previous changesets partly reverted to maintain the National Park boundary.
Leave the National Park boundary alone.

Thais and 2 past changesets part Reverted.
Leave the National Park Boundary alone.

Brisbane Water National Park boundary again set back to correct location.

Water ways simplified - max error 1 m

You have once again modified the boundary of the national park!!!!!!!!!!!!!!!!!!!!!

Hi
relation/18972979 McLeans Island is now broken ....

Reverted. Fully.

Error!
This is NZ SI Christchurch.

Hi,
way/1472871922 building is wrong...
Basics? A way cannot share a segment with itself. See
https://tools.geofabrik.de/osmi/?view=areas&lon=149.14459&lat=-35.26987&zoom=19&baselayer=Geofabrik%20Standard&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

The inner dome is a 'building part' even if it is retractable. So it should be included in the building footprint.

I have corrected this. I hope you can use this as a guide.

Some have trees in their backyards - still a residential area.

I am reverting back to the 204 node segment for the National Park boundary. With a comment on the way.

Since you stated you have added over 700 nodes to a boundary of the Brisbane Waters National park that was some 204 nodes. This is data bloat.

Multipolygon outer way cannot share segments...
See https://tools.geofabrik.de/osmi/?view=areas&lon=172.54630&lat=-43.48947&zoom=19&baselayer=Geofabrik%20Standard&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Not an Id user. So I cannot say if Id issues a warning or not. If you use Id and it does not issue a warning then you know what to do?

What a mess!

No comment?

Ok ... resolved

Hopefully in future the PTv2 'rules' could be followed?
Stops/platform must be first in the relation followed by the ways.
And the stops/platforms and way must be in sequential order.
relation/4513982 was altered by this changeset to have the stops last... and not in the correct order. I have fixed this now.

Hi
Added tag construction=line as per normal tagging for construction things.
When construction is complete please delete the tag construction=line.

Note 'Eastern Line' has suspicious tag combination of electrified=no with frequency ??? Which is it..