Planning board continues review of a proposed geo-exchange facility for Princeton University The topic of noise and sound was the main focus of residential concerns during the public portion of the Princeton Planning Board’s continued hearing for Princeton University’s proposed one-story geo-exchange facility known as “TIGER,” which would also be a building for athletics operations. The hearing, which took place on Jan. 22, did not result in a vote taking place from the board to determine approval, as the hearing was continued to Feb. 18. The next board meeting for the application is slated to hear attorney Bruce Afran, who is representing objectors to the application.