Research on the effect of the air craft noise pollution on the noise environment in the school education of Okinawa due to the U.S. military Bases

摘要

At present on Okinawa, the military base facilities occupy 10.4% of the prefecture's total land area of 2274.6 Sq·km~2. This poses a great problem in the effective urban planning of the cities, towns and villages surrounding the military bases. Part of the problem is the aircraft noise pollution during takeoff, landing, warming up of the engines etc. which seriously affects the quality of the basic daily life of the inhabitants surrounding the base. A survey carried out by the University of the Ryukyus indicates that the noise from the Marine Corps Air Station Futenma exceeded 100 decibels in the classrooms of the Second Futenma Elementary School, which is located next to the air base, Ginowan City, during aircraft take-off and landing. In the Morning of October 4 when MV-22 Osprey Training began at Futenma Air Station, A team led by the author conducted a noise survey on the occurrence of low-frequency sound recorded at take-offs. The level of sound recorded was higher than that stated in the Environmental impact Assessment Created by the Ministry of Defense for the futenma Relocation plan to Henoko.