On the fundamental diagram for freeway traffic: A novel calibration approach for single-regime models

X Qu, S Wang, J Zhang - Transportation Research Part B: Methodological, 2015 - Elsevier
The speed-density or flow-density relationship has been considered as the foundation of
traffic flow theory. Existing single-regime models calibrated by the least square method …

Macroscopic fundamental diagrams: A cross-comparison of estimation methods

L Leclercq, N Chiabaut, B Trinquier - Transportation Research Part B …, 2014 - Elsevier
This paper aims to cross-compare existing estimation methods for the Macroscopic
Fundamental Diagram. Raw data are provided by a mesoscopic simulation tool for two …

The relationship between car following string instability and traffic oscillations in finite-sized platoons and its use in easing congestion via connected and automated …

J Sun, Z Zheng, J Sun - Transportation Research Part B: Methodological, 2020 - Elsevier
This paper focuses on two fundamental issues in traffic flow modelling: string stability of car
following (CF), and oscillation of traffic flow. Its aim is to explore the complementary use of …

Data fusion algorithm for macroscopic fundamental diagram estimation

L Ambühl, M Menendez - Transportation Research Part C: Emerging …, 2016 - Elsevier
A promising framework that describes traffic conditions in urban networks is the macroscopic
fundamental diagram (MFD), relating average flow and average density in a relatively …

Hysteresis phenomena of a macroscopic fundamental diagram in freeway networks

N Geroliminis, J Sun - Procedia-Social and Behavioral Sciences, 2011 - Elsevier
Observations of traffic pairs of flow vs. density or occupancy for individual locations in
freeways or arterials are usually scattered about an underlying curve. Recent observations …

Stochastic approximations for the macroscopic fundamental diagram of urban networks

JA Laval, F Castrillón - Transportation Research Procedia, 2015 - Elsevier
This paper proposes a theory for estimating the Macroscopic Fundamental Diagram (MFD)
on inhomogeneous corridors and networks using probabilistic methods. By exploiting a …

Hierarchical ramp metering in freeways: An aggregated modeling and control approach

Y Han, M Ramezani, A Hegyi, Y Yuan… - … research part C …, 2020 - Elsevier
This paper develops a model-based hierarchical control method for coordinated ramp
metering on freeway networks with multiple bottlenecks and on-and off-ramps. The controller …

Routing strategies based on macroscopic fundamental diagram

VL Knoop, SP Hoogendoorn… - Transportation …, 2012 - journals.sagepub.com
Traffic management can prevent too many vehicles in a traffic network from reducing traffic
performance. In particular, traffic can be routed so that the bottlenecks are not oversaturated …

Network traffic instability with automated driving and cooperative merging

Z Gu, Z Wang, Z Liu, M Saberi - Transportation Research Part C: Emerging …, 2022 - Elsevier
Connected and/or automated vehicles (CAVs or AVs) have been shown to dampen stop-and-
go waves in mixed autonomy traffic, thus improving string stability. However, their effects on …

Generalized bathtub model of network trip flows

WL Jin - Transportation Research Part B: Methodological, 2020 - Elsevier
Abstract Vickrey (1991, 2020) proposed a bathtub model for the evolution of trip flows served
by privately operated vehicles inside a road network based on three premises:(i) treatment …