Study on vibration measurement and sensory evaluation of combined vibration for detached houses

Sensory and psychological content accounts for 90% of all vibration complaints in Japan. Therefore, evaluation based on vibration sensation is very important. Traffic vibration is the most common source of vibration that causes complaints, when limited to detached houses. If traffic vibration is the source of complaints, occupants will suffer from vibration for a long period of time. Vibration transmitted by traffic to housing floors may not be either vertical or horizontal, but rather a combination of both vertical and horizontal vibration that exceed perceptual thresholds. Japanese standards include "JIS C 1510" and "AIJES-V0001-2018". However, they do not describe methods for sensory evaluation of combined vibration. Although ISO 2631 series describes it, it is necessary to consider whether it can be applied to Japan as it is. Considering that traffic networks will continue to develop in Japan, especially in urban areas, it is assumed that the vibration generated inside houses, mainly from traffic vibration sources, will not be a single vibration of vertical or horizontal vibration, but a combined vibration that is perceived in multiple directions. Therefore, in this paper, vibration measurement and sensory evaluation of combined vibration were examined using a real house vibrated by traffic.