Environmental-conscious factors affecting street microclimate and individuals’ respiratory health in tropical coastal cities

• There are environmentally-conscious factors affecting urban street microclimate.
• Some environmentally-conscious factors are compromising individuals’ respiratory health.
• Street orientation, material of ground and facades, distance to sea compromise respiratory health.
• Dust and atmospheric particles, air pollution, vegetation, and traffic load compromise respiratory health.
• Wind speed has the highest risk severity among other factors.

The research aimed to identify environmentally-conscious factors affecting urban street microclimate compromising individuals’ respiratory health. Thirty two environmentally-conscious factors have been investigated clustered into three clusters; Geometry, Meteorological, and Streetscape. Among thirty two factors, street orientation, material of ground and facades, distance to the sea, dust and atmospheric particles, air pollution, vegetation, and traffic load factors significantly compromise respiratory health. Wind speed received the highest risk severity value (0.44) among other factors; in contrast, Dust and atmospheric particles absorbed the lowest value (0.07). Risk severity matrix shows wind speed is located in high-risk zone and other factors in moderate-risk zone.