Abstract
Acoustical measurements were taken in three existing ICUs in a hospital. New ICUs were designed to address acoustical and other issues identified in the three existing ICUs. The results of acoustical measurements made in the new and existing spaces are compared to the results of surveys and focus group discussions with user groups including hospital staff, patients, and visitors. While sounds of individual acoustical events were similar in the new and existing ICUs, the overall sound levels and frequency of sounds decreased in the new ICUs compared to the existing ICUs. This is because the design of the new ICU removed the sounds of nurses speaking at the nurses’ station, medical equipment, and other operations from the patient areas in the new ICU. Overall, the new ICU had a quieter environment for patients, nurses, and visitors as indicated by the acoustical measurements, surveys, and focus group discussions.
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