MIT Revolving Door Study

A widely-cited study conducted at the Massachusetts Institute of Technology showed potential annual energy savings of 74% when a revolving door entrance was used instead of a swing door to enter and exit a popular campus building. The results of the study are available here.

Interestingly enough, one of the challenges in gathering the data was students' resistance to using the manual revolving door, which had to be pushed and required more time to pass through than the adjacent swing door. An automatic revolving door eliminates the need to physically touch the door wings, while activation sensors and rotation speeds can be adjusted according to traffic flow.