Multiple abrupt phase transitions in urban transport congestion

05/26/2020
by   Aniello Lampo, et al.
0

During the last decades, our view of cities has been deeply transformed by new approaches combining engineering and complexity sciences. Network theory is playing a central role, facilitating the quantitative analysis of crucial urban dynamics, such as mobility, city growth or urban organization. In this framework, betweenness, a well-known centrality measure, represents a fundamental tool, standing out as a proxy of traffic density and congestion, among others. In this work, we focus on the spatial aspects of congestion. To help unveiling such relationship, we introduce a simple model composed of a grid connected to a set of trees. This structure, coined as the GT-model, allows us to analytically describe in terms of betweenness, how and why congestion emerges in particular geographical areas, and more importantly, how it may co-evolve with city growth and mobility pattern shifts. We observe the emergence of several congestion regimes, with abrupt transitions betwenn them, related to the entanglement of arterial and urban local roads. The existence of these transitions is corroborated in a large amount of real city networks, thus representing an important step towards the understanding and optimization of traffic dynamics over coupled transportation networks.

READ FULL TEXT

page 7

page 15

research
05/09/2020

Smart Urban Mobility: When Mobility Systems Meet Smart Data

Cities around the world are expanding dramatically, with urban populatio...
research
09/06/2022

An End-to-End Solution for Enabling Urban Cyclability: The Bike2Work Experience

Mobility plays a fundamental role in modern cities. How citizens experie...
research
07/04/2019

Modeling and analysis of alternative distribution and Physical Internet schemes in urban area

Urban logistics is becoming more complicated and costlier due to new cha...
research
08/30/2014

Personalization of Itineraries search using Ontology and Rules to Avoid Congestion in Urban Areas

There is a relatively small amount of research covering urban freight mo...
research
06/19/2019

Scaling in the recovery of urban transportation systems from special events

Public transportation is a fundamental infrastructure for the daily mobi...
research
10/08/2022

Variability Analysis of Isolated Intersections Through Case Study

Population and economic growth of urban areas have led to intensive use ...
research
11/26/2022

Smart City Drivers and Challenges in Urban-Mobility, Health-Care, and Interdependent Infrastructure Systems

At the turn of the 21st century, urban development has experienced a par...

Please sign up or login with your details

Forgot password? Click here to reset