| Title |
Estimation of Probe Vehicle Penetration Rates on Multi-Lane Streets Using the Locations of Probe Vehicles in Queues at Signalized Intersections |
| Authors |
모대상(Moh, Daesang) ; 이재현(Lee, Jaehyeon) ; 김선호(Kim, Sunho) ; 이청원(Lee, Chungwon) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.2.0133 |
| Keywords |
프로브 차량;표본 비율;다차로 도로;신호교차로 Probe vehicle;Penetration rate;Multi-lane street;Signalized intersection |
| Abstract |
The probe vehicle penetration rate is a required parameter in the estimation of entire volume, density, and queue length from probe vehicle data. The previous studies have proposed estimation methods without point detectors, which are based on probability structures for the locations of probe and non-probe vehicles; however, such methods are poorly suited to the case of multi-lane streets. Therefore, this study aimed to estimate the probe vehicle penetration rate at a multi-lane intersection and introduce a probability distribution of the queue length of each lane. Although a gap between estimates and observations was found, the estimates followed the trend of observations; the estimation could be improved by the correction factor hereafter. This study is expected to be used as a basic study for the estimation of entire volume, density, and queue length at multi-lane intersections without point detectors. |