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A Study on Improving the Reliability of DSRC Traffic Information Considering Traffic and Road Characteristics - Focusing on Busan Urban Expressway -
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 Title & Authors
A Study on Improving the Reliability of DSRC Traffic Information Considering Traffic and Road Characteristics - Focusing on Busan Urban Expressway -
Jeong, Yeon Tak; Jung, Hun Young;
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 Abstract
This study aims at improving the Reliability of DSRC Traffic information considering Traffic and Road Characteristics. First of all, this study analyzed the characteristics of DSRC data on urban expressway and problems of outlier data occurrence. After then, this study produced reliable traffic information by using an optimal method of the Outlier-Filtering. After Outlier-Filtering, this study performed accuracy evaluation and appropriateness check for the number of samples per confidence level. As a result, it showed that the MAPE was between 2.2% and 9.7% and RSME was between 2.2 and 7.5 which are very similar figures to the actual average traffic speed. Also, The samples of both Am peak and Pm peak periods were analyzed to be appropriate at the confidence level of 95%, and 90% within the allowable error range of 5kph.
 Keywords
DSRC;Traffic information;Minimum sampling number;Reliability improvement;Outlier;
 Language
Korean
 Cited by
1.
AVI 수집 자료 분석에 근거한 최적 통행속도 산출에 관한 고찰,정연탁;정헌영;

대한토목학회논문집, 2015. vol.35. 3, pp.625-637 crossref(new window)
1.
The Consideration on Calculation of Optimal Travel Speeds based on Analysis of AVI Data, Journal of the Korean Society of Civil Engineers, 2015, 35, 3, 625  crossref(new windwow)
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