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KMID : 1024520150240091171
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Journal of the Environmental Sciences
2015 Volume.24 No. 9 p.1171 ~ p.1180
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Observational Study to Investigate Thermal Environment and Effect of Clean- Road System over a Broad Way of Daegu in Summer
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Kim Sung-Rak
Jung Eung-Ho
Kim Hae-Dong
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Abstract
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To investigate thermal environment and effect of clean-road system over a broad way, we conducted the filed meteorological observation during 12~13 August 2014. The clean-road system was employed over a part of the broad way of Dalgubul(Dalgubul-Daero) by Daegu Metropolitan city in 2011. The clean-road system in general is operated two times(4 am, 2 pm) during summertime. In case of scorching alert, the system is operated 3 times a day(4 am, 2 pm and 4 pm). To evaluate the present thermal condition and the improvement effects due to the system, we analyzed the time variation of discomfort index and WBGT(wet-bulb and globe temperature). WBGT was more than 25 during 8 a.m. ~ 9 p.m. And discomfort index was more than 75 during 8 a.m. ~ 11 p.m. The thermal improvement effect of the clean-road system was restrictive during daytime.
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KEYWORD
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Clean-road system, Discomfort Index, WBGT
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