In view of the fact that there are quite a few defects in noise monitoring and control operation of the three military heliports in Longtan (Taoyuan County), Xinshe (Taichong County) and Guiren (Tainan County) respectively, it is hoped that the implementation of “2007 Aviation Noise Control Project” would help the Environmental Protection Bureau (EPB) of the counties/cities where an airport is located complete check-up of the aviation noise monitoring and control center and establish the standard operating procedures (SOPs) for interpretation of aviation noise monitoring data. The results of this Project and improving measures recommended therein will be submitted to the Environmental Protection Administration (EPA), the EPB of the counties/cities where an airport is located, and various airport managements, followed by the explanation of those improving measures. In addition, the improvements will be followed up to ensure the quality and accuracy of aviation noise monitoring. Currently, the delimiting results of the noise contours of heliports and the monitoring data are questioned by nearby residents because the noise level and actual measurements are quite different from those perceived and experienced by them. Therefore, it is hope that through the implementation of this Project, methods for delimiting aviation noise control zones and correcting noise contours of helicopters suitable for our country and methods and indicators for measuring aviation noise level of helicopters suitable for our country can be formulated. Given that the Publication “The Positions and Number of Auto Monitoring Systems that Should be Set Up at the Airport to Continuously Monitor the Status of Aircraft Noises and the Methods and Formats Used for Monitoring Records” has been promulgated by the EPA, Executive Yuan, on January 1, 2007, and the auxiliary tools for aviation noise monitoring data interpretation have been installed through 2006 Aviation Noise Control Project, it is hoped that, through the implementation of this Project, the statistical analysis functions of the tools for aviation noise monitoring data interpretation can be enhanced so as to perform such works as verifying the aviation noise monitoring date of military airports, civilian airports and military-civilian airports in an effective and accurate manner. This Project aims to continuously collect data on aviation noise control subsidy for domestic military airports, civilian airports and military-civilian airports, update the “Aviation Noise Monitoring and Control Subsidy Database”, make public information on aviation noise control subsidy for various airports and landing fees collected over the years, and conduct evaluation and analysis on the cost-effectiveness of noise control improvements at various airports. The objectives of this Project include: 1) assisting local EPB of the counties/cities where an airport is located (including civilian, Army and Air Force airport) in completing check-up of the aviation noise monitoring and control center; 2) formulating methods for delimiting aviation noise control zones and correcting noise contours of helicopters (including low frequency noises; 3) enhancing and perfecting functions of the tools for aviation noise monitoring data interpretation and updating the “Aviation Noise Monitoring and Control Subsidy Database” for public access. After implementation, this Project has completed the following objectives: 1) conducting check-up of the aviation noise monitoring and control centers at over 5 airports in conjunction with local EPB of the counties/cities where an airport is located, including explaining the SOPs for aviation noise monitoring station check-up to local EPB of the counties/cities where an airport is located, formulating the SOP Manual for the aviation noise monitoring station and aviation noise monitoring and control center check-up, performing check-up of aviation noise monitoring and control centers in conjunction with local EPB of the counties/cities where an airport is located, and submitting the results of those check-ups and improving measures recommended therein to the EPA and the EPB of the counties/cities where an airport is located; 2) explaining the improving measures to local EPB of the counties/cities where an airport is located and various airport managements and following up the improvements; 3) formulating methods for delimiting aviation noise control zones and correcting noise contours of helicopters (including low frequency noise) and conducting determination of the aviation noise of helicopters (performing 720 measurements at various locations) and making a correction of 8 dB(A); 4) collecting measures and regulations on helicopters’ low frequency noise control and methods on delimitation of noise control zones adopted home and abroad and evaluating their feasibility; 5) formulating methods and indicators for measurement of aviation noise level of helicopters suitable for our country (consultative meetings were held to collect views and opinions from all circles before formulation of the methods and indicators); 6) enhancing and perfecting functions of the tools for aviation noise monitoring data interpretation and updating the “Aviation Noise Monitoring and Control Subsidy Database” for public access.The proposed revision of Article 13-2 of Noise Control Act Enforcement Rules is as follows:The Class 1 through Class 3 aircraft noise control zones designated in Article 11-2, Paragraph 1 of this Act shall be as follows:1.Class 1 aircraft noise control zones1)Airports for jet planes and propeller-driven aircrafts’ taking off/landing: means areas within aircraft noise day-night average sound level noise contours that are sixty decibels or more, but do not reach sixty-five decibels.(2)Airports for helicopters’ taking off/landing: means areas within aircraft noise day-night average sound level noise contours that are fifty-two decibels or more, but do not reach fifty-seven decibels.2.Class 2 aircraft noise control zones1)Airports for jet planes and propeller-driven aircrafts’ taking off/landing: means areas within aircraft noise day-night average sound level noise contours that are sixty-five decibels or more, but do not reach seventy-five decibels.(2)Airports for helicopters’ taking off/landing: means areas within aircraft noise day-night average sound level noise contours that are fifty-seven decibels or more, but do not reach sixty-seven decibels.3.Class 3 aircraft noise control zones1)Airports for jet planes and propeller-driven aircrafts’ taking off/landing: means areas in aircraft noise day-night average sound level noise contours that are seventy-five decibels or more.(2)Airports for helicopters’ taking off/landing: means areas in aircraft noise day-night average sound level noise contours that are sixty-seven decibels or more.

aviation,noise,,heliports