Effectiveness of Tree Pattern in Street Canyons on Thermal Conditions and Human Comfort. Assessment of an Urban Renewal Project in Historical District in Lodz (Poland)

The implementation of adaptation strategies has become an essential activity spatial planning departments. Passive technologies related to the introduction natural components in form vegetation are used, especially urban development plans, mitigate effects climate change and thus improve quality citizen life. Nature-Based Solutions particular importance areas strict city centers, where historical building structures subject legal protection. In this study, authors tested influence high greenery on microclimatic conditions typical street canyons (east–west north–south orientations). Authors included established strategy by City Planning Department. To estimate impact assumed scenarios, a CFD tool was used—the ENVI-met application, which is commonly used field microclimatology. Studies have shown that 10% green area contributed maximum air temperature reduction 0.80 °C (17:00) east–west-oriented canyon, 0.49 (10:00) canyon. Department, greater amount turned out be less effective solution. thermal comfort felt humans also determined. PET index 10.80 (14:00) east–west canyon; 6.66 canyon with orientation. This research might constitute foundations re-evaluation plans. outcomes can lead taking alternative direction layout transformations.