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KMID : 1024520170260040467
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Journal of the Environmental Sciences
2017 Volume.26 No. 4 p.467 ~ p.481
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Effect of Thermal Diffusion on Autumn Traffic in Street Space
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Yoon Yong-Han
Kim Jeong-Ho
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Abstract
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This study sought to determine the changes in weather conditions in urban streets, along with conditions of traffic and roads in urban areas. The variations in weather conditions depending on traffic differed according to distance. First, the temperature difference measured by traffic results is as follows: T1 point 1.03 , T2 point 1.04 , T3 point 0.9 , T4 point 1.01 , and T5 point 0.31 . The average difference between the measured temperatures by the point of measurement was 0.86 . The changes in wind velocity according to traffic volume results of the measurements is T1 point 1.32 m/s, T2 point 0.80 m/s, T3 point 0.29 m/s, T4 point 0.04 m/s, and T5 point 0.09 m/s. The difference between the average wind speeds was 0.51 m/s and traffic jams caused substantial differences in distance. The relative humidity tended to be inversely proportional to temperature. The measurements results ares T1 point 2.29%, T2 point 2.67%, T3 point 2.47%, T4 point 2.16%, and T5 point 0.91% The difference between the average relative humidity was 7.3%. In case of independent sampling T test according to traffic volume, changes in wind velocity and temperature were directly proportional to the level of statistical significance(p<0.01). On the other hand, relative humidity tended to be inversely proportional; however, there was no statistical significance.
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KEYWORD
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Meteorological factors, Air temperature, Distance, Street
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