There’s an indoor track at the Y in Ann Arbor. I’m guessing it’s probably the same number of laps per mile, although the outside lanes will reduce that number. When I’m in AA, and it’s cold outside, even that small of a track is really nice to use and have available.
Regarding additional stress on runner’s joints due to the shortness of the 200 meter indoor track, allegedly, according to the UMich website:
Now, whether it does or not, I don’t know. And whether Colby will use the same technology, I don’t know.
https://mgoblue.com/sports/2017/6/16/facilities-track-field-html.aspx