In order to examine the effective use of “tourism experience in VR space,” we clarify to : What extent VR can substitute for on-site tourism? Whether VR experience stimulates the desire to visit? We created a VR space in which subjects could experience sightseeing as much as possible in the same way as in the on-site. After allowing them to freely tour the area, we asked them to evaluate the content of the experience and the sightseeing spot. Also, we conducted a similar experiment in the actual site to compare the both results.

In recent years, VR has attracted attention as a new method in architectural design. VR will be expected to understand a space more easily, and more useful for improving designers’ ability. In this study, we proposed an evaluation method by performing “pointing out error objects” task, in order to understand the educational effects of tools used in architectural design education objectively. Based on this, we examined the superiority at each content of design process, between VR to traditional tools such as 2D drawings and 3DCAD.

In this paper, we investigated predicting the reduction of heavy-weight floor impact sound level that takes into account nonlinearity due to tire impact. In analysis, we compared the mass calculation methods of five models that focused on the impact frequency of the impact source. We showed that it is effective to calculate the area of a circle whose radius is equivalent to the maximum amplitude of the wavelength of the bending wave at the impact frequency. In the 63 and 125Hz, more than 90% of the differences between predicted and measured values were within ±5dB.

In recent years, there has been a rise in the number of cases nursery schools located under the elevated railway. To clarify the reality, we conducted sound measurements of trains passes through several nursery schools located under the elevated railway. Result of sound pressure level when the train passes for nursery schools, 31.5 Hz ~ 63 Hz octave band frequency was differences between measurement results for each nursery school. Result of sound measurements of continuously for 4 ~ 8 hours in nursery rooms suggest that it is necessary to analyze by focusing on sound environment in nap time.

Under the uniform sky, the direct illuminance and incident luminous flux of each rectangular surface in a cuboid space with rectangle window can be easily calculated using the average direct daylight factor which is the form factor of the illuminated surface relative to the aperture surface. This paper presents a method for deriving the average direct daylight factor under the overcast sky between two basic rectangular surfaces and the result of derivation. This allows us to calculate the average direct daylight factor of the rectangular surface in a cuboid space, using a method like that under the uniform sky.

In Japan, working from home have become common, but one of the most frustrating factors when working from home is cold feet. In addition, cold feet cause a decline in intellectual productivity. Thus, it is necessary to provide a comfortable and appropriate thermal environment for working from home for “Hiesho,” or people who easily feel cold. This study aimed to clarify the effects of the heating system on the intellectual productivity of “Hiesho” when working from home. The results showed that running floor heating creates an environment that is comfortable and maintains high intellectual productivity even for “Hiesho” workers.

In recent years, Thermally Activated Building Systems (TABS), which utilize the thermal mass of building structures, are gaining attention. Traditional TABS uses piping embedded in the concrete slab. That makes difficulty to maintain building for long term due to the inaccessible piping, and refurbishment possibly causes a damage on the structure. To solve this problem, we have developed TABS using floor-mounted cold and hot water panels. In this study, heat conduction around the panels is represented in detail based on the measurements. We confirmed that presented TABS system has shown similar figure to reference data of traditional TABS method.

In previous studies, we constructed models to predict psychological evaluations based on physical indicators in urban river landscapes. However, the conventional manual aggregation of physical indicators costs significant effort. Therefore, we applied semantic segmentation to automatically extract the area ratios of landscape elements using 48 sites in the vicinity of the Ota River, Hiroshima. We used the obtained elements area ratio data to predict psychological evaluations and mapped the predicted values for 255 locations. As a result, the deep learning-based extraction results of green area ratios and building area ratios were significantly close to the results of manual work.

This study investigated the differences between office work and work from home, using subjective indicators (questionnaires and diaries) and objective indicators (environment and biometric data from sensors). Results showed that workers experienced more morning sleepiness when working from home, despite sleeping longer hours, compared to when working in the office. This could be due to the lack of physical activity associated with commuting and lower illuminance at home compared to the office. Additionally, sleepiness increased in the afternoon during office workdays, implying that adjusting air conditioning based on time of day could help alleviate this issue.