I drove Medicine Hat to Calgary yesterday. At Gleichen I took 901 to 22x. The turnoff is marked with signs saying Important Intersection, Highway 901 and East Gleichen.
Sure, that will tell tourists and inexperienced drivers that 901 is a good, newish, road to the south end of Calgary that bypasses the horrors of Deerfoot and saves time.
Remember, Civil Servants do not care.