Take a look at the Michigan Wiki page and the OSM page on sidewalks, before adding to many "sidewalks". A sidewalk in British parlance is walkway along the edge of a motor way. Michigan has very few of those, usually only in downtown areas. Michigan also allows bicycles on cement paths through people's yards, that we call sidewalks.

Mapping a "footway" through the school, at level "-1", as if it were an underground tunnel, is definitely not correct. What tool are you seeing these warnings in?

Carry on then.

Thanks again for your help with the Lansing area.

Check the Lansing and Michigan Wiki pages. Michigan mappers have started to meet each month.

Usually, we try to make our change sets more succinct. Here I would like to talk about the footpath added to Holmes Road in Lansing (thanks for that), but this change set spans to include Sault Saint Marie.

When adding footways, there is no need to separately "draw" the crosswalk. Just mark the junction between the roadway and the footway as the appropriate crossing type. It makes things cleaner and much easier to deal with. I've been find this through out Lansing, when using StreetComplete to add surface types (which nearly always changes in a crossing), lighting, and the various crossing details it can add.

This section of railroad is not abandoned, it no longer exists. The tracks are long gone and most of the railroad grade has disappeared to time and developments. With OpenStreetMap, we are to map what is on the ground. And this should be removed.
osm.wiki/Good_practice#Map_what.27s_on_the_ground

Looking at some of your other edits, I think you might find the Open Historical Map of interest.
osm.wiki/Open_Historical_Map

This section of railroad is not abandoned, it no longer exists. The tracks are long gone and most of the railroad grade has disappeared to time and developments. With OpenStreetMap, we are to map what is on the ground. And this should be removed.
osm.wiki/Good_practice#Map_what.27s_on_the_ground

Looking at some of your other edits, I think you might find the Open Historical Map of interest.
osm.wiki/Open_Historical_Map

Changes like this are big, affecting routing and rendering at low zoom levels. Did you need help with this?

Also, OsmCHA can be used to review your edits. https://osmcha.org/changesets/83404998/?filters=%7B%22users%22%3A%5B%7B%22label%22%3A%22Michael%20Karazim%22%2C%22value%22%3A%22Michael%20Karazim%22%7D%5D%2C%22date__gte%22%3A%5B%7B%22label%22%3A%22%22%2C%22value%22%3A%22%22%7D%5D%7D

Thank you.

According to the local community's interpretation of the OpenStreetMap-isms, M99 would be tagged highway=secondary.

Look to the Lansing Wiki (need to do the same for Michigan) for the other roads.

Here is the wiki page I mentioned, with example road types.
osm.wiki/Lansing,_Michigan#Highway

I see now, you have changed many road types, and not necessarily based on OpenStreetMap terminology. I need to know if you plan to fix any mistakes, or if I need to organize a cleanup effort. Please let me know before 11/27/2020.
https://osmcha.org/changesets/83404998?filters=%7B%22users%22%3A%5B%7B%22label%22%3A%22Michael%20Karazim%22%2C%22value%22%3A%22Michael%20Karazim%22%7D%5D%2C%22date__gte%22%3A%5B%7B%22label%22%3A%22%22%2C%22value%22%3A%22%22%7D%5D%7D

Thinking that I had incorrectly tagged cycleway=* on M99, long ago (I now know this would be shoulder, at best), I went these tag. While removing them, I then found the road to also be misdesignated as "trunk". Though this is the legal designation in Michigan, it has a different meaning in OpenStreetMap. Please take a look at the bottom of the Lansing Wiki page for local examples of road type designations.

Very good. Sorry for jumping to conclusions.

Ok... I see it now. This was in the aerial photo at the time. Looks like it was mowed.

While I remember, I am deleting this.

Welcome to OpenStreetMap.
Actually, as we only map the truth on the ground, and the tracks to the south-west have been gone for decades, we should technically remove the abandoned railway. I have been meaning to do this. You could map the path that remains through Holly Park with highway=path .
osm.wiki/Good_practice#Map_what.27s_on_the_ground

Rather than a relation, generally each location would be mapped separately with the branch tag used to distinguish between each location having the same primary name.
osm.wiki/Key:branch

I am pretty sure that the water treatment plant does not have tree planted spelling out "MSU". Would you kindly remove this, and any other misrepresentations you may have added to the map?

Just rediscovered this problem created by a user using MAPS.ME and am now going to fix Eagle Monk. I am not sure how accurate their other edits might be, but the location is way off and a duplicate.

No problem. If Amazon Logistics is using OpenStreetMap for routing and would like to maintain construction status, that is great. I would love it if someone were to do this.

In the meantime, I have re-opened eastbound 496. And, I intentionally left westbound 496 open, because I am not sure that I will remember to fix it when it re-opens.