Autor según el artículo: Lampo A; Borge-Holthoefer J; Gómez S; Solé-Ribalta A

Departamento: Enginyeria Informàtica i Matemàtiques

Autor/es de la URV: Gómez Jiménez, Sergio

Palabras clave: Urban systems Road networks Phase transitions Congestion road networks phase transitions congestion

Resumen: The quantitative study of traffic dynamics is crucial to ensure the efficiency of urban transportation networks. The current work investigates the spatial properties of congestion, that is, we aim to characterize the city areas where traffic bottlenecks occur. The analysis of a large amount of real road networks in previous works showed that congestion points experience spatial abrupt transitions, namely they shift away from the city center as larger urban areas are incorporated. The fundamental ingredient behind this effect is the entanglement of central and arterial roads, embedded in separated geographical regions. In this paper we extend the analysis of the conditions yielding abrupt transitions of congestion location. First, we look into the more realistic situation in which arterial and central roads, rather than lying on sharply separated regions, present spatial overlap. It results that this affects the position of bottlenecks and introduces new possible congestion areas. Secondly, we pay particular attention to the role played by the edge distribution, proving that it allows to smooth the transitions profile, and so to control the congestion displacement. Finally, we show that the aforementioned phenomenology may be recovered also as a consequence of a discontinuity in the node’s density, in a domain with uniform connectivity. Our results provide useful insights for the design and optimization of urban road networks, and the management of the daily traffic.

Áreas temáticas: Multidisciplinary sciences Multidisciplinary Computer science, theory & methods Computer networks and communications Computational mathematics

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Direcció de correo del autor: sergio.gomez@urv.cat

Identificador del autor: 0000-0003-1820-0062

Fecha de alta del registro: 2023-03-06

Volumen de revista: 6

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://appliednetsci.springeropen.com/articles/10.1007/s41109-021-00383-6

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Applied Network Science. 6 (1):

Referencia de l'ítem segons les normes APA: Lampo A; Borge-Holthoefer J; Gómez S; Solé-Ribalta A (2021). Emergence of spatial transitions in urban congestion dynamics. Applied Network Science, 6(1), -. DOI: 10.1007/s41109-021-00383-6

DOI del artículo: 10.1007/s41109-021-00383-6

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2021

Tipo de publicación: Journal Publications