Integrated Monitoring of Aircraft Noise at Narita Airport

摘要

At Narita Airport, various noise countermeasures such as introduction of low- noise aircraft and soundproofing of houses have been taken by the Narita Airport Authority (NAA), while monitoring of aircraft noise at 71 site locations had been performed independently by the NAA and local prefecture and city governments for purposes of checking of acoustical environment and as a means of noise complaint procedure. Since 1997, the Narita Airport Regional Symbiosis Promotion Foundation (NSF) has come to carry out management and data reduction of all noise monitoring stations under the mutual consent among the NAA and local governments in order to monitor aircraft noise in a united manner via an efficient and highly transparent process. In April 2002, however, the second runway started to use and the NSF became to deal with extensive noise data from more than a hundred monitoring stations. Then, the NSF has installed a new aircraft noise data processing system, which utilizes ATC-Rader Data, information obtained by newly developed aircraft access detection units, etc. This paper gives a brief description of the aircraft noise data processing system as well as an information disclosure system to the public on flight-path and noise observations at Narita.