Super-random states in vehicular traffic - Detection & explanation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F22%3A39919600" target="_blank" >RIV/00216275:25510/22:39919600 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/22:00356516 RIV/62690094:18470/22:50021387

Výsledek na webu

<a href="https://doi.org/10.1016/j.physa.2021.126418" target="_blank" >https://doi.org/10.1016/j.physa.2021.126418</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physa.2021.126418" target="_blank" >10.1016/j.physa.2021.126418</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Super-random states in vehicular traffic - Detection & explanation

Popis výsledku v původním jazyce

This article deals with specific states of traffic flow on a two-lane freeway, in which statistical fluctuations of microscopic quantities (inter-vehicle gaps) are significantly higher than in systems with absolutely random events (Poisson systems). These anomalous states (super-random) are detected in empirical traffic data, specifically in the fast lane at traffic densities up to 25 vehicles per kilometer. The origin of these states is then explained mathematically (using the theory of balance particle systems and tools of random matrix theory), physically (by means of an one-dimensional particle gas subjected to local perturbations caused by overtaking cars) and empirically (using an analogy with phenomena observed in photon counting experiments). In the article we show that overtaking maneuvers, when vehicles from a slow lane are injected into a fast-lane stream of faster moving vehicles, disrupt a local balance in microstructure of fast-lane stream and cause atypical arrangement of vehicular positions, that is very rare, generally. With help of original numerical model we demonstrate that the anomalous states detected are identical to equilibrium states formed in a stochastic particle gas with a potential containing, in addition to a repulsive component, also an attractive component. (C) 2021 Published by Elsevier B.V.

Název v anglickém jazyce

Super-random states in vehicular traffic - Detection & explanation

Popis výsledku anglicky

This article deals with specific states of traffic flow on a two-lane freeway, in which statistical fluctuations of microscopic quantities (inter-vehicle gaps) are significantly higher than in systems with absolutely random events (Poisson systems). These anomalous states (super-random) are detected in empirical traffic data, specifically in the fast lane at traffic densities up to 25 vehicles per kilometer. The origin of these states is then explained mathematically (using the theory of balance particle systems and tools of random matrix theory), physically (by means of an one-dimensional particle gas subjected to local perturbations caused by overtaking cars) and empirically (using an analogy with phenomena observed in photon counting experiments). In the article we show that overtaking maneuvers, when vehicles from a slow lane are injected into a fast-lane stream of faster moving vehicles, disrupt a local balance in microstructure of fast-lane stream and cause atypical arrangement of vehicular positions, that is very rare, generally. With help of original numerical model we demonstrate that the anomalous states detected are identical to equilibrium states formed in a stochastic particle gas with a potential containing, in addition to a repulsive component, also an attractive component. (C) 2021 Published by Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10102 - Applied mathematics

Projekt

<a href="/cs/project/CK01000152" target="_blank" >CK01000152: Pokročilé matematicko-fyzikální metody modelování mikrostruktury dopravního proudu</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physica A : Statistical Mechanics and its Applications

ISSN

0378-4371

e-ISSN

1873-2119

Svazek periodika

585

Číslo periodika v rámci svazku

126418

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

nestrankovano

Kód UT WoS článku

000703932500021

EID výsledku v databázi Scopus

2-s2.0-85116049469