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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제21권 제4호
발행연도
2005.8
수록면
401 - 411 (11page)

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초록· 키워드

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This study was conducted to develop a method to be able to estimate the vehicular emissions according to spatial scales-Seoul province, 25 counties and hundreds of grids (1 ㎞×1 ㎞). First, the emissions at each spatial scale was calculated by using the road network and the travel volume and speed of each link modeled by travel demand model (TDM). Second, the emission at each spatial scale was calculated on the basis of average speeds estimated by using three kinds of averaging method. These are called the provincial, volume-delay function (VDF) and zonal method, respectively. Third, three kinds of emissions and those by TDM are compared each other at three spatial scales. In Seoul (provincial scale), three kinds of emissions are less than those by TDM, but the differences of TDM from three speed averaging methods (SAMs) are small. The relative ratios of three SAMs to TDM are 88~90% in CO, 99~100% in NOx, 84~85% in VOCs. At county scale, NOx among three pollutants showed the highest correlation between TDM and three SAMs and the zonal method among three SAMs was proven to be the highest correlation with TDM. NOx showed the coefficients (R²) greater than 0.9 in all three SAMs but CO and VOC showed the coefficients (R²) greater than 0.9 in only zonal method. Slopes of correlations of all pollutants showed the values close to ‘1’ in zonal method. In the other two SAMs, slopes of NOx showed the values close to ‘1’, but those of CO and VOC showed the values less than 0.85. At grid scale, correlations between TDM and three SAMs were not high. CO showed 0.68~0.77 in R²s and 58~0.68 in slopes. NOx showed 0.90~0.94 in R²s and 0.86~0.94 in slopes. VOC showed 0.56~0.70 in R²s and 0.48~0.57 in slopes. There are not high correlations between TDM and three SAMs in grid scale. This study showed that there is the most suitable method for calculating the average travel speed at each spatial scale and it is thought that the zonal method is more suitable than the VDF or provincial method.

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Abstract

1. 서론

2. 연구방법 및 자료

3. 배출량 산정결과 및 분석

4. 결론

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UCI(KEPA) : I410-ECN-0101-2009-539-017907845