Journal of Korean Society of Transportation (대한교통학회지)
- Volume 10 Issue 1
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- Pages.5-20
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- 1992
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- 1229-1366(pISSN)
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- 2234-4217(eISSN)
Evaluation of Analysis Methodologies for Freeway Ramp Areas
고속도로 연결로 분석기법에 대한 평가
Abstract
Even though the types of ramp facilities in Korea are not various like other countries operations in these sections are very important because ramp merging and /or diverging flow affects freeway overall sections. In this study existing methodologies especially the gap acceptance model and the regression model in USHCM are evaluated with our field data. By gap acceptance model the merging capacity is founded 2.360 pcph which is increased by 7% than the capacity of freeway basic section. And in comparison of actual lane 1 volume to the estimation volume by HCM model the model slightly overestimates the actual volue.
Keywords