Comparing noise contours calculated using existing and measurement-based NPD data for two major airports in Vietnam

摘要

The rapid development of air traffic in Asia along with the urbanization process made the increasing population living around airports exposed to higher noise levels. A noise map is helpful to track the level of change and evaluate the environmental impact due to the airport noise for appropriate countermeasures. This study is one of the first attempts to access an appropriate method to create noise maps for Vietnam in the absence of required data and limited technical means. Field measurements were conducted at Noi Bai International Airport (HNBIA) and Da Nang International Airport (DNIA), which were jointly used by the military and the civil aviation, in November 2017 and August 2018, respectively. Data related to the flight paths and operation of the aircraft were processed and input in the Integrated Noise Model (INM). Particular characteristics of the two airports such as climate conditions, geographical location, and operation of specific military aircraft types caused the difference between Noise-Power-Distance (NPD) data created by field measurement data and available NPD data in INM. The estimated noise levels using INM's existing and measurement-based NPD were compared with field measurement data to clarify the accuracy of the estimation process proposed in this study.