Abstract
To study the relation between thermal index and thermal sensation in the outdoor environment, we conducted micrometeorological measurements and interviews in two different outdoor spaces, which are one park and one square in Matsudo, Chiba Prefecture. The relation between micrometeorological factors (air temperature, wind speed) and thermal sensation in two spaces was investigated and compared. Using the standard new effective temperature(SET*) as a thermal index, we analyzed the relation between the thermal index and thermal sensation in two different outdoor spaces. In this study, it was showed that thermal sensation in two outdoor spaces was almost in the range of the comfort of SET*. The range of thermal comfort in park, however, was wider than that of SET*.