我が国の家庭生活騒音苦情と対応する自治体条例の関連について

In Japan, domestic noise is not covered by national noise control law but left to local governments to regulate. In the interest of reducing domestic noise control, this study investigates the relationship between the existence of domestic noise control ordinances and the number of domestic noise complaints reported to local law enforcement.
The data set was compiled from law enforcement noise control surveys and local government databases in Japan. Complaints of “domestic noise,” “industrial noise,” and “construction work noise” were included along with each local body’s relevant ordinances, that is, cities and special wards. These were further divided into three groups: domestic noise control ordinances, ordinances present only in the prefecture, and existing ordinances. For three groups, the number of domestic, industrial, and construction work noise complaints were compared.
In the residual analysis, the number of domestic noise complaints significantly increased in locations with no domestic noise control ordinance. In the subgroup analysis by population density, the number of domestic noise complaints decreased significantly in locations with prefecture noise control ordinances and with a population density below the average of cities.
In higher population density locations, where domestic noise control ordinances were already in place, the number of domestic noise complaints showed a decreasing trend. The results of the study suggest that the noise control ordinances established by local governments do reduce the number of domestic noise complaints.