Unless there was reasonable potential for sleep, a sustained schedule like that would seem cruel and unusual....
How interesting that an entire province has a similar schedule. We're all over the place in this part of Colorado. The common 12 hour shift schedule seems to be 3 shifts one week and four shifts the next. It is very uncommon to rotate between days and nights, most people keep their same hours and days of the week for a set period of time. Some folks will work three 14s, four 10s, or five 8s as well at some of the larger services.
In the more rural areas and at fire departments it is more common to have only three "groups" of personnel on 24 hour shifts. Compared to the above model of 12 hour shifts this reduces staffing needs 25% but allows for the same coverage. There's many different schedules on the three group schedule, common around here are 48 on 96 off and another that I can never really remember the name of which goes XOXOXOOOO where X is a 24 hour shift. 24 on 48 off also exists.
This is what I did on 12s when I started. Shifts staggered every hour from 0400-1200 on day shift and 1500-1900 on nights. Eventually we went to a hodge podge schedule that I could never explain. I ended up working 6 straight 13 hour shifts with 8 days off in a row.My 911 in Ohio was on 12s, you bid day or nights at the end of the previous year by seniority as well bidding the A or B shift. We had a long week of 4 days and a short week of 3. Tuesday, Wednesday and Saturday on the short. Sunday, Monday, Thursday and Friday on the long.
I'm starting at rural service on 48/96 in the new year.
I think I'd rather do that over 24/48. I worked modified kelly for six years and while my 48s are waaaay better, at least you get a four day.