Professional noise assessment and barrier design tools for landscape architects and urban designers. Calculate traffic noise levels, barrier insertion loss, earthwork berm geometry, vegetation screening effectiveness, and outdoor acoustic comfort for parks, residential, and public realm projects.
| Band (Hz) | Source (dB) | δ (m) | Fresnel N | IL (dB) | Receiver (dB) |
|---|
| Equipment | Lw (dB) | Qty | Dist (m) | Contribution (dBA) |
|---|
| Room Type | Target RT60 (s) | Status |
|---|
| Storey | Height (m) | Slant Dist (m) | External (dBA) | Internal (dBA) | Target | Status |
|---|
| Building Use | Low Probability (m/s^1.75) | Adverse Possible |
|---|---|---|
| Residential day | 0.2-0.4 | 0.4-0.8 |
| Residential night | 0.1-0.2 | 0.2-0.4 |
| Office | 0.4-0.8 | 0.8-1.6 |
| Workshop | 0.8-1.6 | 1.6-3.2 |
CalcType: Professional Acoustic & Noise Barrier Design Solutions — This comprehensive acoustic calculator suite is engineered to support evidence-based noise assessment, barrier design, and outdoor acoustic comfort evaluation for landscape architects, urban designers, and environmental planners. Noise propagation calculations apply the ISO 9613-2 (Attenuation of Sound During Propagation Outdoors) methodology, including geometric divergence, ground attenuation, atmospheric conditions, and screening corrections. Barrier insertion loss is calculated using the Maekawa–Kurze–Anderson diffraction model as referenced in ISO 10847 and the UK CRTN (Calculation of Road Traffic Noise, DoT 1988) framework. Earth berm geometry and fill volume calculations follow standard geotechnical practice aligned with BS 6031 (Earthworks) and DMRB (Design Manual for Roads and Bridges). Vegetation attenuation is assessed per ISO 9613-2 Section 7.5, with psychoacoustic masking benefits referenced from peer-reviewed urban soundscape research. Outdoor acoustic comfort ratings align with WHO Environmental Noise Guidelines for Europe (2018) and ISO 1996-1 (Acoustics — Description, Measurement and Assessment of Environmental Noise). Façade noise assessments reference BS 8233:2014, Building Bulletin 93, and WELL Building Standard v2 internal noise criteria. Whether you are designing a highway noise berm, a planted acoustic screen for a residential garden, a healing garden soundscape, or assessing façade exposure for a mixed-use development, CalcType provides the technical rigour required for noise-sensitive landscape design. Technical Disclaimer: All noise levels, insertion loss values, and acoustic comfort ratings provided by this calculator are intended for preliminary design assessment and feasibility screening only; they do not constitute a formal Environmental Noise Assessment, Noise Impact Assessment (NIA), or acoustic report for planning submission purposes. All final noise assessments, barrier designs, and façade treatments must be verified and certified by a qualified acoustic consultant holding membership of the Institute of Acoustics (MIOA / FIOA), Acoustical Society of America (ASA), or equivalent national body, prior to planning application or construction. Actual acoustic performance may vary due to site-specific topography, meteorological conditions, reflection, diffraction, and construction quality; CalcType assumes no liability for noise complaints, regulatory non-compliance, or project delays resulting from the use of these estimation tools.