Alleyways are a type of service road, it's meant to be for rear/side access lanes like what this looks to be.

Hey, service=alley won't block bicycles, cars, or foot traffic, and it does describe what this road looks like on aerial imagery.
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Published using OSMCha: https://osmcha.org/changesets/158474387

Hi, if you're removing duplicate items, it's best to ensure all relevant data from the removed object is moved over to the new one. There's wikidata and wikipedia tags that should have been moved over.
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Published using OSMCha: https://osmcha.org/changesets/158409439

If these are two separate houses in one building, there's ways to tag this correctly instead of making invalid multipolygons. You can tag them as building=house and house=semi-detatched, or building=semidetatched_house, probably worth checking to see which option is more widely used in Australia.

If you're not sure whether it's a semidetatched house or just one house, it should just be a single polygon and building=house, can always add a fixme to confirm which way it is.
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Published using OSMCha: https://osmcha.org/changesets/158386943

Hey, just an FYI, in Australia tagging suburbs, postcodes and states generally isn't needed, since we've got full coverage of those as relations so you can reverse geocode those. Nothing wrong with adding them, but thought it's worth letting you know!
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Published using OSMCha: https://osmcha.org/changesets/158333210

Revert changeset that dragged a node

changeset/158152273

Hi, you've dragged a traffic signal node away from where it was, I've reverted this change, please redo the changes to the shop node
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Published using OSMCha: https://osmcha.org/changesets/158151784

Hi there, this should probably be done as two separate changesets, the bounding box for this covers all of Africa, most of South East Asia, and the majority of South America.

Hi Alex, we can't use Google Maps as a source, this probably needs to be reverted and redacted
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Published using OSMCha: https://osmcha.org/changesets/158115205

The roundabouts pretty much exclude it from OSM's definition of motorway.

Generally best to avoid using it at all, just to be safe.

I'm hoping Esri has most of the new bits.

However, Google/Street View isn't an allowed source due to copyright so I wouldn't use it while mapping.

Hi, this area has recently had changes that likely aren't reflected on Bing, especially around the rails themselves, if you're not using up to date imagery (as in the last couple of months) this has likely undone some recent changes to map that new work.
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Published using OSMCha: https://osmcha.org/changesets/158035446

Higher class of road is how I’ve always seen it, and the lack of a residential_link or unclassified_link also echoes that, since you otherwise have to set it to just being a residential/unclassified road which is incorrect altogether.

Why have you changed link ways to unclassified highways?
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Published using OSMCha: https://osmcha.org/changesets/157997615

Is there a reason you've changed links to match the lower instead of the higher classification, as well as changing two links to normal roads?
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Published using OSMCha: https://osmcha.org/changesets/157994101

The business looks like it was tagged in the wrong place, streets don't match up and it was added on top of what looks like a substation at first glance.
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Published using OSMCha: https://osmcha.org/changesets/157964226

Yeah there's definitely plenty of roads around that could have classifications improved. It's probably best if you think two roads are classed differently but seem similar, to evaluate both of them.

Definitely add surface tags to help with that, paved/unpaved are generic tags for a start, and then you can check out the Wiki page [1] for the more specific ones.

For adding the new path, the best way to do it ASAP is to ride it! See if you can get a GPS that can record tracks, or see if you can do it with your phone or a smartwatch, that'll give you a GPS trace that can be used as a starting point, and then over time if you do that a few times you can get a more accurate trace of the path and improve it further. Once it's on aerial imagery then it can be traced from there, but GPS recordings are going to be much quicker than waiting for imagery.

If you've ever got questions or want someone to double check your thinking, feel free to flick me a message on here, or jump over to the forums [2] or Discord [3], there's always plenty of people who are happy to help!

[1] surface=*
[2] https://community.openstreetmap.org
[3] https://discord.gg/openstreetmap

I reverted them en-masse to save time, immediately after responding to you. Please don't see it as as a negative sign, it was just the easiest way to correct those changes. I'm happy to go through and redo any of the surface changes you've made, but I'd also recommend making sure you're understanding what the changes you make mean, as changes are live and made immediately. Please do learn and contribute, this was all intended to be constructive and help make sure changes are correct.

Text isn't always the best way to get across things, so I apologise if my comments do seem harsh!

osm.wiki/Highways is a good starting place, but I'd make sure you're understanding the differences before changing highway classifications, a jump from unclassified to secondary is a pretty significant jump. Highway classification should take into consideration several factors including traffic/usage, place in the greater road network, routes travelling along a road, etc.