PEMODELAN UNCONVENTIONAL INTERSECTION BERBENTUK SINGLE-POINT URBAN INTERCHANGE DENGAN PROGRAM PTV.VISSIM
PANGESTU, SOFYAN ARYO
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Kentungan Intersection is an intersection that always having a traffic jam at the peak hours.The traffic jam at Kentungan Intersection is caused by highly vehicle volume exceeding the intersection capacity. The type of this intersection is purview intersection. Non-purview intersection is used when traffic control at the purview intersection cant handle the high vehicle capacity. So its need to evaluate from geometric view with the ways of changing the type of the intersection to non-purview intersection. Non-purview intersection is consists of conventional and unconventional. Non-purview conventional intersection is commonly used in Indonesia like flyover or underpass. Non-purview unconventional intersection is rarely used in Indonesia because the shape of its geometric is unusual. This study choose one of the unconventional intersection called Single-Point Urban Interchange (SPUI). SPUI provide vehicle movement more and efficiently than others type. The purpose of this study is to get modelling result from three intersection condition. Method used in this study is modelling using program PTV.VISSIM 9. There are three conditions; existing condition, Default SPUI Intersection, and Modification SPUI Intersection. Result of the modelling existing condition, level of service of the intersection is LOS F with the average vehicle delay is 104,79 second. On Default SPUI Intersection, level of service of the intersection is LOS D with the average vehicle delay is 32,54 second. On Modification SPUI Intersection, level of service of the intersection is LOS D with the averrage vehicle delay is 30,3 second. Result of this models are passing the calibration process from driving behavior aspect and vehicle volume validation.