Anomaly of Thermal Environments for Pedestrians in Urban Residence Evaluated by a Mobile Observation System

Abstract

We conducted a mobile observation for microclimate in a summer daytime of Tokyo to examine the spatial anomaly of the thermal environment at a pedestrian level of a residential area. We discussed difference of thermal stress, which is quantified by Wet-bulb Globe Temperature (WBGT), between side walk of a main street and narrow street in a residential area. In the observation day, it was under high thermal stress judged from the WBGT although solar radiation was not large. The observation result has also shown that WBGT in the narrow street was higher than that in the side walk of the broad street due mainly to the difference in the humidity and temperature although solar radiation was not the main reason of this high thermal stress in this weather condition.