I changed it because highway=busway isn't rendered on the maps, so I took guidance from here: osm.wiki/Tag:highway%3Dbusway

Whilst I do understand that not everybody is a fan of "smoothness", there are those of us who are. The rules are open to interpretation on this, so with respect, I will stick to my interpretation and preference.

Thanks

Hmm, not sure how that happened, but not sure how to fix it.

I disagree; it makes perfect sense to me. I am making it the 'Higher of the two. It's not part of Gladstone nor Jones, so as it is within the Highway's lanes, it is part of the highway, just as a crossover without intersecting roads is, but is not a link.

Just an added comment, if Jones Road were a tertiary road, with Gladstone Road being a secondary road, what class of road should be used for the crossover?

That's not how I see it. As the crossover between the two directions of the Princes Highway is neither Gladstone Road nor Jones Road, it is simply a crossover of the Princes Highway, which is a Trunk Road. If there is a crossover between the two directions of a divided road where there are no intersecting roads, the crossover is considered a part of the divided road as it is within the two lanes.

Fair enough, it could be just a service road but it's definitely not simply a parking aisle.

I believe it still has that name even though cars cannot still drive on it. This is not unusual. Do you know it the name has been revoked?

Boundary Road was its name before the new alignment of Boundary Road was done and it is more than simply a track but more like a laneway, so I might tag it as an alley.

My mistake. Corrected.

I wasn't using Google/Street view to do the mapping, just to cross-check.