This study focused on vacant stores in shopping arcades, and through an impression evaluation experiment using whole-sky images of shopping arcades, aimed to clarify how the number of vacant stores affects the visual impression of the shopping arcade as a whole and the willingness to visit. The results showed that the number of vacant stores has a significant influence on the impression of the shopping arcade. The evaluation structure of vacant stores was also found to be different depending on the number of vacant stores. It was surmised that this was due to differences in what was considered important.

We conducted an experiment in which subjects found the emergency signs and read its display under the positions and luminance conditions in which C class emergency signs could actually be installed in a 3m wide corridor. A display was used to change the luminance of the emergency signs and the background, as well as the position of the emergency signs in the experiment, and data was obtained for 77 conditions. As a result, we analyzed the effect of the luminance contrast, solid angle (apparent size), and emergency signs’ position on the time it takes to find them.

Since the 2010s, local government buildings have been rebuilt one after another. In rebuilding, there is a demand for improved environmental performance. On the other hand, ensuring business continuity in the event of a disaster is also an issue for local government buildings. We thought it necessary to integrate environmental considerations during normal times with disaster prevention functions during emergencies. In our previous report, we organized the technologies introduced in government buildings throughout Japan from both perspectives. In this report, we will conduct a fact-finding survey on thermal storage tanks that are being utilized from both perspectives.