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http://dx.doi.org/10.12652/Ksce.2012.32.4D.305

A Simple Methodology for Estimating the Capacity of Multi-lane Smart Tolling  

Choi, Keechoo (아주대학교 환경건설교통공학부)
Lee, Jungwoo (한국도로공사 스마트하이웨이사업단)
Park, Sangwook (한국도로공사 스마트하이웨이사업단)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.4D, 2012 , pp. 305-311 More about this Journal
Abstract
With the rapid deployment of hipass$^{(R)}$, the congestion is inevitable due to the operation of the hipass lane system. Recently, SMART Highway project have developed a multi-lane mainline tolling system, called SMART Tolling system. To analyze the effectiveness of the system in terms of capacity, this study tries to estimate the capacity and its improvement of multi-lane tolling system based on current hipass$^{(R)}$ data. The methodology uses the saturation time headway. This follows three steps; 1) estimate the saturation time headway, using hipass$^{(R)}$ data, and capacity. 2) estimate two factors (the first one is dividing the one side lane width and lateral clearance factor ($f_w$) into two side one, the second one is dividing the capacity of hipass lane operating a circuit breaker into the capacity of hipass lane not operating, the last one is increasing factor of lane width). 3) calculate the capacity of multi-lane mainline tolling system. The results of method produced 2172~2187 veh/hour as smart tolling capacities, respectively. Those are higher about 370 veh/hour than the values from existing literature reviews. Additionally, saturation time headways were identified as lower by 0.5 seconds/veh than existing headways based on hi-pass$^{(R)}$ based one, which naturally implies the improvement in capacity. Some limitations and future research agenda have also been discussed.
Keywords
Hi-Pass$^{(R)}$; SMART Tolling; Multi-lane tolling system; Capacity calculation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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