Current patients in an emergency department of a hospital are described according to their quantity, their triage classification levels, and their wait times to calculate a current patient backlog. The interconnect includes a plurality of lanes. Slave bus users which have not yet been assigned an address take measures in response to this query message to be able to transmit on the bus without collisions, and transmit their serial number to the master bus user using these measures. A theoretical maximum range of the electric vehicle is determined based on the current location of the electric vehicle and the charge level of the at least one battery of the electric vehicle. The system also includes at least one secondary vent tile positioned and operated to one of, introduce airflow into a re-circulating airflow and remove airflow from a re-circulating airflow, to thereby respectively divert or vary the temperature of the re-circulating airflow and thereby reduce the effects of air re-circulation in the room.