Real‐time detection of end‐of‐queue shockwaves on freeways using probe vehicles with spacing equipment

Cao, Peng; Fan, Qiaochu; Liu, Xiaobo

doi:10.1049/iet-its.2018.5124

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…Later on, an improved version was proposed utilizing conservation law and fundamental diagrams ( 38 ). Cao et al ( 27 ) proposed an instrumented-vehicle-based approach for the real-time detection of traffic shockwaves on freeways. Their methods still need to rely on continuous trajectories from vehicles in pairs with a car-following relation; however, most ICVD are discontinuous and unpaired because of occlusions and lane changes.…”

Section: Literature Reviewmentioning

confidence: 99%

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Estimating Freeway Lane-Level Traffic State with Intelligent Connected Vehicles

Liu

Zhang

Miwa

et al. 2022

Transportation Research Record: Journal of the Transportation R

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This paper proposes a methodology for estimating lane-level traffic state for freeways by fusing data from intelligent connected vehicles (ICVs) with fixed detector data (FDD) and probe vehicle data (PVD). With microscopic vehicle trajectories of ICVs and their surrounding vehicles, the proposed methodology integrates a multilane traffic flow model into the data assimilation framework based on extended Kalman filter (EKF), in which traffic measurement models are formulated for ICV data, PVD, and FDD, respectively, to fit their different characteristics. Simulation experiments are conducted to test the performance of the proposed methodology with various penetration rates of ICVs, using a set of simulated ICV data based on the Next Generation SIMulation (NGSIM) data sets. The results demonstrate that by utilizing only 3% to 5% ICVs in the mixed traffic, the proposed methodology could produce an accurate estimate of lane-level traffic speed and a reasonable estimate of lane-level traffic density.

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Section: Literature Reviewmentioning

confidence: 99%

“…Seo et al ( 25 ) proposed an ICVD-based method of estimating traffic states for freeways using Edie’s ( 26 ) generalized definitions on traffic flow variables. Later, Cao et al ( 27 ) applied ICVs to estimate lane-level traffic shockwave speed. A recent study tried to estimate the queue length at traffic signals with ICVD ( 28 ).…”

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confidence: 99%