Greenery Impact on Physiological Equivalent Temperature for Pedestrians in Residential Zones in Hot and Arid Climates

The study of street geometry has gained significant attention in recent years, with researchers investigating the effects of design factors on pedestrian thermal comfort in hot and arid climates.This research investigates how introducing vegetation to pedestrian path design influences thermal comfort on a street section in residential neighborhoods in Riyadh, Saudi Arabia.The case studies explore location-specific investigations to understand pedestrian path design scenarios with variations of vegetation and their placement while focusing on their impact on outdoor thermal comfort, furthermore, using Envi-met 5.6.1 to analyze and compare existing case studies and offer optimized outdoor samples supporting thermal conditions.By examining the influence of vegetation on outdoor thermal comfort, identifying environmental parameters that affect thermal comfort, and comparing their impact on physiological equivalent temperature (PET) recommendations to improve pedestrians' physical health and impact their well-being.This study emphasizes the significance of vegetation in shaping pedestrians' outdoor thermal comfort in hot and arid climates, with design factors such as type, height, width, and distance.Understanding these factors and their crucial roles in determining thermal conditions and their immediate impact on pedestrian thermal comfort can inform urban design strategies aimed at enhancing pedestrian comfort and promoting sustainable and livable urban environments