The purposes of this project include: 1) counsel and assist the Environmental Protection Bureau (EPB) of various counties (or cities) in reviewing and analyzing the aviation noise monitoring data (including data CDs) regularly submitted by various airports, in order to enhance the quality of aviation noise monitoring operation, 2) constantly maintain and update the functions of tools for aviation noise data interpretation to make them available for check-up by the EPB of various counties (or cities), 3) collect and analyze information on the wind speed monitoring limits regarding the aviation noise in our country and evaluate the assessment methods for low-frequency noises produced by helicopters, and 4) collect information on the latest development of the environmental protection measures and practices on civil aviation noise control around the world. On the other hand, since the noise issue in various counties (or cities) involves some localized features, such as localization and public perception, the Articles 8 and 9 of the Noise Control Act authorizes the local government of various counties (or cities) to publish controlling items concerning the noise issue in their jurisdiction as necessary. In addition, this project also aims to assist with the control operation of various noise-related technology group projects, in terms of implementation progress, content ＆ results, matters needing assistance, and highlights of the next stage of various projects in order to make sure that the execution content is not swerving from the original plans or policies, so as to enhance the implementation quality of various projects. The achievements of this project are described as follows: 1. Studied and analyzed the controlling items published as the behavior approach or standards by various counties (or cities) in accordance with the Articles 8 and 9 of the Noise Control Act, including: 1) Analyzed the noise petition cases and repeated complaints currently received by various counties (or cities) and proposed controlling items and content to be published as the behavior approach or standards in accordance with the Articles 8 and 9 of the Noise Control Act. 2) Studied and evaluated the feasibility of the proposed controlling items and content based on the EPA requirements. 3) Assisted with the control operation of noise-related policies and technology group projects. 4) Helped with form filling and aggregation concerning science and technology projects on the National Science Council’s website. 5) Performed related administrative work for the National Noise Control Meeting. 2. Counseled and assisted the Environmental Protection Bureau (EPB) of various counties (or cities) in reviewing and analyzing the aviation noise monitoring data (including data CDs) regularly submitted by various airports, in order to enhance the quality of aviation noise monitoring operation, including: 1) Invited experts and scholars to participate in a consultation meeting to discuss the content of Quarterly Report of Aviation Noise. Counseled and assisted the EPB of counties (or cities) where an airport is located in reviewing and analyzing the aviation noise monitoring data and organized a meeting to discuss the result of aviation noise monitoring data review. 2) Updated the “Aviation Noise Control Subsidy Database”, collected information on aviation noise control subsidy at military-civilian airports and military airports in the country, and updated data on aviation noise control subsidy for public inquiry. 3) Investigated the current situation of the air traffic at different heliports administered by the National Airborne Service Corps, MOI, to provide information on air routes and number of flights for reference by the EPB of countries (or cities). 4) Established and aggregated the “Noise Monitoring Station Description Table” of aviation noise monitoring stations around the country. 3. Maintained and updated the functions of tools for aviation noise data interpretation to make them available for use by the EPB of various counties (or cities), including: 1) Reviewed the feasibility of collection rate enhancement, the aviation noise monitoring data, such as total average sound level, event average sound level and background average sound level, and the reasonableness of the range of parameters. 2) Enhanced and maintained the functions of tools for aviation noise data interpretation. 3) Organized meetings to discuss the tools for aviation noise data interpretation for the EPB of counties (or cities) where an airport is located. 4. Collected and analyzed information on the wind speed monitoring limits regarding the aviation noise in our country and evaluated the assessment methods for low-frequency noises produced by helicopters, including: 1) collected aviation noise measurements at different wind speeds or at wind speeds over 10 m/s at various airports in our country, analyzed the effect of wind speeds over 10 m/s on the aviation noise measurements, and proposed wind speed monitoring limits. 2) Collected the helicopter low-frequency noise control measures adopted by various countries, including measuring methods and evaluation criteria. 3) Analyzed the feasibility of inclusion of low-frequency noise control based on the aviation noise contours of the three Army Heliports. 4) Proposed a corresponding draft based on the analysis results and held a consultation meeting participated by experts and scholars after completion of the draft. 5. Collected information on the latest development of the environmental protection measures and practices on civil aviation noise control around the world, including: 1) Collected the environmental protection policies, strategies and goals on civil aviation noises adopted by ICAO, EU and other major countries and investigated their latest development and future directions. 2) Collected information on the policy direction and scope definition of aviation noise environment adopted by the civil aviation and environmental protection authorities of major foreign countries. 3) Collected information on environmental protection policies, goals and related regulatory measures on aviation noises adopted by major foreign countries. 4) Collected information on environmental protection measures and initiatives on aviation noises adopted by civil aviation authorities of major foreign countries. 5) Analyzed the feasibility of adoption of European aviation noise simulation software. 6) Assisted with review of related aviation noise laws and regulations.

aviation noise