| Title |
A Simple Methodology for Estimating the Capacity of Multi-lane Smart Tolling |
| Authors |
최기주(Choi, Keechoo) ; 이정우(Lee, Jungwoo) ; 박상욱(Park, Sangwook) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.4D.305 |
| Keywords |
단차로 무인 자동통행료 징수시스템;다차로 톨링시스템;용량산정 Hi-Pass$^{(R)}$;SMART Tolling;Multi-lane tolling system;Capacity calculation |
| 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. |