Those are very nice school buses because I know school buses are always out running on the roadways even when school is out of session.
Now they only use electric stop arms but some of their older school buses from the early 1990s or before the 1990s might still use the air ones (not yet upgraded to electric stop arms). Some air stop arms uses an actual blade with the word stop painted on instead of a stop sign which is a bright red octagon that tells people to stop and all electric stop arms uses a stop sign which is a bright red octagon that tells people to stop. Air stop arms are antiques and electric stop arms are mode
rn stop arms.