DronePath estimates the noise corridor of a delivery drone flight between two points, calibrated against the published values in the Trinity College Dublin acoustic report:
UAV Noise Footprint — Dr John Kennedy, Faculty of STEM, Trinity College Dublin. V1 November 2024, V2 May 2025.
The TCD report measured Manna delivery drone noise at 59 dBA during a fly-over at 65 m cruise height, and 67 dBA during a delivery hover at 14 m above a garden. We calibrate a simplified point-source model to those two anchor points and use it to project the noise field over arbitrary terrain.
Bands are coloured by the dB delta above the ambient baseline you set (default 42 dBA, an estimate for quiet suburban Cork streets like Blackrock, Ballintemple, and Ballinlough during the day). The TCD report uses 52 dBA, an urban Dublin baseline.
The "Significant impact" and "Adverse impact" labels come from BS 4142:2014+A1:2019, the standard for rating industrial and commercial noise. BS 4142 was not designed for aviation noise — there is currently no UK or Irish standard specifically for delivery-drone noise impact. The categories are used here by analogy to give planners and residents a familiar reference.
The numbers should be treated as order-of-magnitude estimates for relative comparison, not as absolute predictions. For planning-grade noise assessment, consult an acoustic engineer.