Figure 3.

A heat map of the frequency with which one of the five loudest noises above 35 dB originated from each 1 cm² of the intensive care unit bay between 19h00  and 20h00 for the 249‐day study period, superimposed on a floor plan of the bay. The position of each of the four beds in the bay is shown, as well as the work bench position. The grid lines are an artefact of the computational methods. The counts are considerably lower than in Fig. 1, as this plot only represents 1/24th of the data in Fig. 1.