Evacuation and alarms and notifications can be challenging in assembly occupancies, and there are a number of provisions in NFPA 72, National Fire Alarm and Signaling Code, for signaling and communicating with people during an emergency evacuation. Wayne D. Moore, vice president at Jensen Hughes, sheds some light on this topic in his new column, “Interface Challenge” in the new July/August issue of NFPA Journal. "Because assembly occupancies present a number of fire and emergency messaging challenges, the designer must ensure that the required fire alarm systems and public address systems interface properly,” Moore writes. “The designer also must present...