Abstract
The mean air temperature in urban areas has risen due to a change of urban structure in a long term. High reflective paints can reduce a cooling load of buildings and may also improve the thermal environment in urban areas. In this paper, field measurements were carried out on pavement where two areas of surface were coated with high reflective paint and ordinary material. Then, the heat flux on the urban surface was calculated on the basis of heat budget equation with the measured data, and the result was compared with the artificial heat release from buildings etc. in 23 wards of Tokyo. The results of this paper show that high reflective paint is effective to resolve heat island problem.
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