Abstract
The house vibration, as well as the noise, caused by traffic on the roads is a public nuisance to be abated. However the intensive investigations have not yet been made, and we have no regulations which can be applied to this problem. In Gofuku, uptown Toyama City, which is located along the national road No. 8, we have investigated the house vibration caused by traffic on the road, and have studied in what conditions it abates.
The house vibration in the daytime is compared with that at night. The vibration of the upstairs room or the room facing the road is compared with that of other rooms. We have found out that the vibration of the wooden floor is smaller than that of the tatami floor, and that of the floor covered with a carpet is less. The effects of the cushion and sofa on reducing the vibration are also studied.
The answers to the questionnaire administered to the inhabitants show that the increasing traffic has done considerable damage to their houses. The answers also show their complaints about the house vibration which is big enough to cause unpleasant effects on their spiritual and physical conditions.
