Research on U.S. military base aircraft noise aircraft and aircraft flight routes in Okinawa Prefecture

Abstract

Currently, about 70% of the area of US military bases nationwide is concentrated in Okinawa Prefecture, occupying an area of about 186.09 km2, which is about 10.4% of the prefectural land area of Okinawa Prefecture. Many of the US military bases are located in or near the center of urban areas and have a great influence on urban planning. Among them, the aircraft noise problem is serious, and it has a great influence on the living environment of the surrounding residents, such as the sound of takeoff and landing and the sound of engine adjustment. In response to this, the government is taking measures such as soundproofing work, but the current situation is that it has not been resolved. The purpose of this study is to (1) grasp and consider the actual situation of noise problems related to US military training through visual surveys, (2) derive the trajectory of US military aircraft from the measurement results of precision sound level meters and visual surveys, and use the results to determine whether the measurement environment is appropriate. (3) Based on the obtained noise data and track charts, consider the noise damage situation at each point.