Professional wind assessment and microclimate design tools for landscape architects and urban designers. Evaluate pedestrian wind comfort using Beaufort and Lawson criteria, calculate wind speed profiles across terrain and building heights, design windbreaks and shelter belts, assess façade wind pressure loads, and optimise outdoor space comfort for parks, plazas, courtyards, and rooftop terraces.
| Activity | Threshold (m/s) | Current Speed | Status |
|---|
| Force | m/s Range | Description | Likely Effects at Pedestrian Level |
|---|
| Height (m) | Wind Speed (m/s) | Dynamic Pressure (Pa) | Beaufort Force |
|---|
| Distance from Windbreak | Reduction % | Speed Remaining (m/s) |
|---|
| PET (°C) | Category | Perception | Stress Level |
|---|---|---|---|
| < 4°C | Very cold | Extreme cold stress | Very strong |
| 4–8°C | Cold | Cold stress | Strong |
| 8–13°C | Cool | Moderate cold stress | Moderate |
| 13–18°C | Slightly cool | Slight cold stress | Slight |
| 18–23°C | Comfortable | No thermal stress | None |
| 23–29°C | Slightly warm | Slight heat stress | Slight |
| 29–35°C | Warm | Moderate heat stress | Moderate |
| 35–41°C | Hot | Strong heat stress | Strong |
| > 41°C | Very hot | Extreme heat stress | Very strong |
CalcType: Professional Wind Comfort & Microclimate Design Solutions — This comprehensive wind comfort calculator suite is engineered to support evidence-based pedestrian wind assessment, windbreak design, and outdoor microclimate optimisation for landscape architects, urban designers, and environmental consultants. The Beaufort & Lawson module applies the internationally recognised Lawson LDDC Pedestrian Wind Comfort Criteria (1990) and the Beaufort Scale (WMO) to assess outdoor comfort suitability for sitting, standing, walking, and running activities. The Wind Speed Profile module calculates vertical wind speed variation using the Power Law profile with terrain roughness parameters per EN 1991-1-4 (Eurocode 1 Wind Actions) and ESDU 91043 topographic amplification factors. The Windbreak & Shelter module applies empirical shelter coefficient models from USDA National Agroforestry Center and Caborn (1957) windbreak research, quantifying protected zone depth as a function of height and porosity. The Wind Pressure & Load module calculates peak velocity pressure and structural wind forces per EN 1991-1-4, ASCE 7-22, and AS/NZS 1170.2 for landscape structures including fences, pergolas, canopies, and signs. The Urban Canyon & Venturi module applies Oke’s (1988) canyon flow regime classification and Bernoulli-based Venturi amplification principles for preliminary screening of channelling and downwash effects in urban environments. The Outdoor Comfort Index combines wind speed, temperature, humidity, solar radiation, and surface material parameters to estimate Physiological Equivalent Temperature (PET) per the Höppe (1999) model and ISO 7730 / VDI 3787 thermal comfort standards. Technical Disclaimer: All wind speed calculations, comfort assessments, structural pressure values, and thermal comfort estimates provided by this calculator are intended for preliminary design screening and feasibility assessment only. They do not constitute a formal Pedestrian Wind Assessment (PWA), Wind Environment Study (WES), or structural wind load certification for planning or building approval purposes. Detailed wind assessments for significant buildings, tall structures, or urban regeneration projects must be conducted using Computational Fluid Dynamics (CFD) simulation, physical wind tunnel testing, or validated site measurement by a qualified wind engineer (CWSA / IAWE member). Structural wind loads must be verified by a licensed structural engineer (CEng / PE) prior to construction. CalcType assumes no liability for injury, structural failure, or planning non-compliance arising from the use of these estimation tools.