What are court 'acoustic hotspots' and how are they remediated?

In urban and park environments, sound waves bounce off perpendicular hard structures—such as concrete retaining walls, brick restroom facilities, or adjacent school buildings—creating focal reflection points or 'flutter echoes' that amplify sound levels by 3 to 6 dBA. Acoustic surveys map these hotspots by measuring reflective wave angles. Remediation strategies include angling perimeter fence lines by 15 degrees to disperse reflected waves away from homes, planting dense acoustic buffer screens, or wrapping brick surfaces in sound-absorbing modular panels.