A linear Lagrangian model predictive controller of macro-and micro-variable speed limits to eliminate freeway jam waves

Y Han, M Wang, Z He, Z Li, H Wang, P Liu - Transportation research part C …, 2021 - Elsevier
… on a discrete Lagrangian LWR model, in which the decision … assumptions that are difficult
to be validated. For example, the … To reproduce the capacity drop, we extend the model by …

Robust variable speed limit control with respect to uncertainties

F Alasiri, Y Zhang, PA Ioannou - European Journal of Control, 2021 - Elsevier
… The purpose of this section is to design a variable speed limit (VSL) controller that rejects …
by informing the upstream vehicles to follow a speed limit so that the density and flow rate of …

Verification and validation of a methodology to numerically generate waves using transient discrete data as prescribed velocity boundary condition

RP Maciel, C Fragassa, BN Machado… - Journal of Marine …, 2021 - mdpi.com
… Thus, the main goal of this paper is to validate this … A first order upwind scheme was
applied for the discretization of spatial derivatives in the momentum equations, and a first order

Optimal location problem for variable speed limit application areas

I Martínez, WL Jin - Transportation Research Part B: Methodological, 2020 - Elsevier
… In Section 6, a numerical verification is presented based on the calibrated model with real
data. Then, the whole analysis is extended for other types of bottlenecks, such as sag or tunnel …

A new reinforcement learning-based variable speed limit control approach to improve traffic efficiency against freeway jam waves

Y Han, A Hegyi, L Zhang, Z He, E Chung… - … research part C: emerging …, 2022 - Elsevier
… based on discrete first-order traffic flow models … a long homogeneous freeway stretch, which
is suitable for applying VSLs to resolve jam waves. The agent decides about the speed limit

Variable speed limit and ramp metering for mixed traffic flows: A review and open questions

F Vrbanić, E Ivanjko, K Kušić, D Čakija - Applied Sciences, 2021 - mdpi.com
… condition and to fully comply with a set speed limit. A discrete first-order model that accounts
for the capacity drop of shock waves was extended in this study to address the proposed …

Real-time joint traffic state and model parameter estimation on freeways with fixed sensors and connected vehicles: State-of-the-art overview, methods, and case …

Y Wang, M Zhao, X Yu, Y Hu, P Zheng, W Hua… - … Research Part C …, 2022 - Elsevier
… coexist for a relatively long period. This paper addresses … first-order and second-order
macroscopic traffic flow models … and the discrete time indices k = 0, 1, 2, … Typical traffic flow …

Integrated variable speed limits and lane-changing control for freeway lane-drop bottlenecks

Y Guo, H Xu, Y Zhang, D Yao - IEEE Access, 2020 - ieeexplore.ieee.org
… To validate the effectiveness of our control method, some … CTM is a discretetime model
and predicts macroscopic traffic … multiclass cell transmission model enhanced with overtaking…

Noise-induced instability of a class of stochastic higher order continuum traffic models

D Ngoduy - Transportation Research Part B: Methodological, 2021 - Elsevier
… distributions directly to the discrete model. Jabari and Liu, … in the first order continuum
model (ie LWR model) by the … model while focusing on the almost sure stability, ie the long-…

An optimal control-based vehicle speed guidance strategy to improve traffic safety and efficiency against freeway jam waves

Y Han, H Yu, Z Li, C Xu, Y Ji, P Liu - Accident Analysis & Prevention, 2021 - Elsevier
… based on a discrete first-order traffic flow model formulated in … at the macroscopic level
using variable speed limits (VSLs). … The model has been calibrated and validated against real …