The Influence of Residential Block Form on Summer Thermal Comfort of Street Canyons in the Warm Temperate Zone of China

The residential block is the cognitive unit for residents to constitute urban imagery. As one of most frequently used outdoor public spaces by residents, thermal comfort street canyons an essential indicator assessing sustainable and livable cities. problem uncomfortable summer climate in warm temperate zone China has not been adequately studied. study aims analyze influence building layout form units configuration on canyons. Outdoor air temperature (Ta), mean radiant (Tmrt), wind speed (Va), physiological equivalent (PET) were simulated using ENVI-met. A new index, PETws, was introduced based a statistical analysis PET index assess overall canyon block. results indicate that number rows buildings row more significant effect than columns zone, especially N–S-oriented streets. Reducing can increase PETws maximum 2.2%. best choice two columns. Adopting different configurations up 2.5%. An optimal created improve