If the climate is extremely harsh, consider an automatic revolving door. These are tremendously popular in Europe for retail, health care and airport applications, and their popularity is growing in North America. Facility executives have a range of choices when it comes to automatic doors. They accommodate most traffic requirements, typically use less floor space, can have great aesthetic appeal, and can provide security features and ADA compliance, according to Dalton. In multi-story buildings they can be less susceptible to stack pressures and wind conditions.
Swing doors are appropriate in instances where control of traffic flow is important.
Swing doors can point visitors in a desired direction, controlling traffic. Biparting units feature two doors that open in opposite directions to form a common opening, usually 60 to 70 inches. Because safety sensors are governed by code, the safety standards outlined in ANSI A156.10 for pedestrian automatic doors must be followed. Automatic doors should be equipped with a means for activation so the door opens early enough to prevent disruption in traffic flow. Further, Murray says, a closed swing door should not be able to open if there are pedestrians in the way, and the door should be equipped with clear signage that describes door operation and the proper approach to the door.