Cyclically varying elevator grouping

Elevator swing cars 37 have doors 50 opening into a low rise lobby service corridor 31 and doors 51 opening into a medium rise lobby service corridor 32 with car panels 52 associated with the low rise group of floors (such as floors 1-13) and car panels 53 associated with floors of the medium rise group of floors (such as floors 14-22). Each swing car is assigned (Fig. 12) to either one of the two groups which it can serve at the conclusion of each run, as the car approaches the lobby, thereby operating an enunciator lantern 56 in the low rise corridor 31 or an enunciator lantern 57 in the medium rise corridor 32, depending upon which rise the elevator has been assigned to for service in the next following run. Similar swing cars 39 relate to the medium rise (32) and the high rise (33). A variety of alternatives and features are disclosed.