Benefits of monthly noise mapping compared to annual assessments - an analysis of Dublin Airport

This paper explores the impact of wind patterns and aircraft operations on noise exposure at Dublin Airport, investigating monthly variations in noise levels and their implications for surrounding communities. While annual noise maps are mandated under END 2002/49/EC, they cannot capture the fluctuations in noise levels resulting from changes in flight numbers and weather conditions. The study provides a detailed analysis of weather patterns, wind influences, runway closures, and population exposure. Findings reveal significant fluctuations in noise exposure, with Westerly operations varying between

throughout 2023, leading to area exposures ranging from

to

for noise levels exceeding

. A grid mapping approach was utilized to illustrate these variations, highlighting the temporal changes in noise impact across different months. The comparison of monthly area exposures shows fluctuations of up to

of a given area exposure within the

contour. This underscores the need for both monthly and annual noise maps, which provide precise and actionable insights into seasonal noise fluctuations. These maps enable data-driven communication strategies, inform placement of noise monitoring networks and facilitate effective community engagement.