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LOS Analysis Frame for COSMOS at Isolated Intersections  

Kim, Jin-Tae (연세대학교 도시교통과학연구소)
Kim, Kang-Huy (서울시정개발연구원 도시교통부)
Lee, Don-Ju (한양대학교 교통시스템공학과)
Publication Information
Journal of Korean Society of Transportation / v.26, no.4, 2008 , pp. 161-172 More about this Journal
Abstract
The level of service (LOS) evaluation method of the Highway Capacity Manual (HCM) is limited to intersections with pre-timed signal operation, while advanced real-time traffic control systems have been expending in the field. This paper proposes a preliminary framework for LOS analysis at isolated intersections controlled by COSMOS, the real-time traffic control systems robustly utilizing the degree of saturation as basic inputs. The proposed LOS evaluation framework was devised with a pilot model developed to estimate the average cycle length and green times of COSMOS. The validation test showed that the proposed framework was able to accurately project the LOS, which was separately evaluated based upon field data.
Keywords
COSMOS; signalized intersection; degree of saturation; level of service; delay;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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