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http://dx.doi.org/10.12815/kits.2013.12.5.022

Improvement of Representative Value through Comparison of the Reliability of point detector : focusing on traffic volume  

Choi, Yoon-Hyuk (한국도로공사 도로교통연구원)
Lee, Yoon-Seok (한국도로공사 도로교통연구원)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.12, no.5, 2013 , pp. 22-35 More about this Journal
Abstract
With the increase in image detectors, concerns about the reliability of traffic information are increasing. In this paper, we propose a method to generate reliable traffic volume using analysis of the point detector data as a representative value. Therefore, targeting expressway, we analyzed the difference in traffic volume collected by loop and image detector, and verified statistically using t-test, and finally analyzed the error rate compare to the real traffic volume. Analysis revealed that there was a statistically difference the traffic date collected by the loop detector and the image detector, in the same period, the same time, respectively. In addition, the difference between the actual traffic volume and traffic that have been collected in a loop detector was the lowest Therefore, creating a traffic volume of representative value, we proposed a method to use loop detector than the average traffic volume collected by each detector. It shows that it is more important to use one high-quality data rather than various low-quality data to produce a representative value.
Keywords
loop detector; image detector; reliability; representative value; traffic volume;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
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