Results 31 to 40 of about 13,370 (299)

From microscopic to macroscopic traffic models [PDF]

open access: yes, 2008
The paper presents a systematic derivation of macroscopic equations for freeway traffic flow from an Enskog-like kinetic approach. The resulting fluid-dynamic traffic equations for the spatial density, average velocity, and velocity variance of vehicles are compared to equations, which can be obtained from a microscopic force model of individual ...
openaire   +2 more sources

Large-scale microscopic traffic simulation based on license plate recognition data and OpenStreetMap

open access: yesJournal of Highway and Transportation Research and Development
Microscopic traffic simulation can provide scientific support for traffic design, traffic planning, traffic monitoring, and traffic demand management, and how to construct accurate and efficient microscopic traffic simulation is an important research ...
Wenbin Yao   +6 more
doaj   +1 more source

Traveling waves for a microscopic model of traffic flow

open access: yesDiscrete and Continuous Dynamical Systems, 2018
We consider the follow-the-leader model for traffic flow. The position of each car $z_i(t)$ satisfies an ordinary differential equation, whose speed depends only on the relative position $z_{i+1}(t)$ of the car ahead. Each car perceives a local density $ρ_i(t)$. We study a discrete traveling wave profile $W(x)$ along which the trajectory $(ρ_i(t),z_i(t)
Shen, Wen, Shikh-Khalil, Karim
openaire   +3 more sources

Generalized velocity–density model based on microscopic traffic simulation

open access: yesTransport, 2018
In case of the Intelligent Driver Model (IDM) the actual Velocity–Density law V(D) applied by this dynamic system is not defined, only the dynamic behaviour of the vehicles/drivers is determined.
Oussama Derbel   +3 more
doaj   +1 more source

Fundamental diagram of traffic flows on urban roads – local versus whole-link approaches [PDF]

open access: yes, 2009
Fundamental diagrams of traffic flow variables have been quite useful in determining freeway operations quality. However, they are usually not used for that purpose on urban roads.
Elmar Brockfeld   +8 more
core   +1 more source

A New Driver Model Based on Driver Response

open access: yesApplied Sciences, 2022
In this paper, a new microscopic traffic model based on forward and rearward driver response is proposed. Driver response is characterized using the distance and time headways.
Faryal Ali   +4 more
doaj   +1 more source

A Microscopic On-Ramp Model Based on Macroscopic Network Flows

open access: yesApplied Sciences
While macroscopic traffic flow models adopt a fluid dynamic description of traffic, microscopic traffic flow models describe the dynamics of individual vehicles.
Niklas Kolbe   +4 more
doaj   +1 more source

The Space-Based Car-Following Model: Development and Application for Managed Motorway System Safety Evaluation

open access: yesFuture Transportation, 2021
Traffic safety studies need more than what the current micro-simulation models can provide, as they presume that all drivers exhibit safe behaviors. Therefore, existing micro-simulation models are inadequate to evaluate the safety impacts of managed ...
Kaveh Bevrani, Edward Chung, Pauline Teo
doaj   +1 more source

Demand Data Modelling for Microscopic Traffic Simulation

open access: yesTransport and Telecommunication, 2018
The current paper aim is to present the technique of demand data modelling for microscopic simulation of the traffic flows. Traffic microscopic simulation is a powerful decision supporting tool, which could be applied for a wide range of tasks. In a past
Savrasovs Mihails   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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