Morphology of travel routes and the organization of cities

  title={Morphology of travel routes and the organization of cities},
  author={Minjin Lee and Hugo Barbosa and Hyejin Youn and Petter Holme and Gourab Ghoshal},
  journal={Nature Communications},
The city is a complex system that evolves through its inherent social and economic interactions. Mediating the movements of people and resources, urban street networks offer a spatial footprint of these activities. Of particular interest is the interplay between street structure and its functional usage. Here, we study the shape of 472,040 spatiotemporally optimized travel routes in the 92 most populated cities in the world, finding that their collective morphology exhibits a directional bias… 

An Urban Morphogenesis Model Capturing Interactions Between Networks and Territories

  • J. Raimbault
  • Computer Science
    The Mathematics of Urban Morphology
  • 2019
This chapter defines complementary measures and study their empirical values and their spatial correlations on European territorial systems, and introduces a generative model of urban growth at a mesoscopic scale.

Hierarchical organization of urban mobility and its connection with city livability

An anonymous and aggregated flows generated from three hundred million users, opted-in to Location History, are used to extract global Intra-urban trips and a metric of hierarchy in urban travel is introduced and correlations between levels of hierarchy and other urban indicators are found.

Uncovering the socioeconomic facets of human mobility

This work analyzes a heavily aggregated and anonymized summary of global mobility and investigates the relationships between socioeconomic status and mobility across a hundred cities in the US and Brazil, finding either a clear connection or little-to-no interdependencies.

Interplay between intra-urban population density and mobility in determining the spread of epidemics

In this work, we address the connection between population density centers in urban areas, and the nature of human flows between such centers, in shaping the vulnerability to the onset of

A unified spatial multigraph analysis for public transport performance

An innovative method to extract motifs on complex spatial multigraphs is invented that is adaptable to unify complex factors into one simple form for swift coding, and depends less on observational data to handle data unavailability.

Quantifying spatial homogeneity of urban road networks via graph neural networks

This study proposes a graph-based machine-learning method and applies it to 11,790 urban road networks across 30 cities worldwide to measure the spatial homogeneity of road networks within each city and across different cities, finding that intra-city spatial homogeneous is highly associated with socioeconomic statuses such as GDP and population growth.

Calibration of a density-based model of urban morphogenesis

A stochastic model of urban growth generating spatial distributions of population densities at an intermediate mesoscopic scale implies that the morphological dimension of urban Growth processes at this scale are sufficiently captured by the two abstract processes of aggregation and diffusion.

From the betweenness centrality in street networks to structural invariants in random planar graphs

The results suggest that the spatial distribution of betweenness is a more accurate discriminator than its statistics for comparing  static congestion patterns and  its evolution across cities as demonstrated by analyzing 200 years of street data for Paris.

Travel in city road networks follows similar transport trade-off principles to neural and plant arbors

The theory of Pareto optimality is used to study this design trade-off in the road networks of 101 cities, with wide-ranging population sizes, land areas and geographies, and finds that most cities analysed lie near the Pare to front and are significantly closer to the front than expected by alternate design structures.

Extracting the multimodal fingerprint of urban transportation networks

The overlap census method is proposed which extracts a multimodal profile from a city's multiplex transportation network, and is applied to 15 cities, to identify clusters of cities with similar profiles, and link this feature to the level of sustainable mobility of each cluster.



Structure of Urban Movements: Polycentric Activity and Entangled Hierarchical Flows

The large scale, real-time ‘Oyster’ card database of individual person movements in the London subway is utilized in an unprecedented manner to reveal the structure and organization of the city.

Exploring the patterns and evolution of self-organized urban street networks through modeling

A growing model for self-organized urban street networks involves a competition among new centers with different values of attraction radius and a local optimal principle of both geometrical and topological factors and implies that a simple universal growth mechanism exists in self- organized cities.

How complexity emerges in urban systems: Theory of urban morphology.

It is illustrated that interactions between land uses are frustrated, which serves as a basic postulate of the theory of urban morphology, and it is disclosed that the actual land use pattern emerges at the criticality of the system in the presence of heterogeneously distributed fields.

Urban Street Networks, a Comparative Analysis of Ten European Cities

It is found that cities share structural similarities due to their quasiplanarity but that there are also several distinctive geometrical properties.

Multiplex networks in metropolitan areas: generic features and local effects

An empirical analysis of the coupling between the street network and the subway for the two large metropolitan areas of London and New York shows that it is crucial to consider the full, multimodal, multilayer network aspects of transportation systems in order to understand the behaviour of cities and to avoid possible negative side-effects of urban planning decisions.

Structural properties of planar graphs of urban street patterns.

This work studies the basic properties of twenty 1-square-mile samples of street patterns of different world cities and finds that cities of the same class, e.g., grid-iron or medieval, exhibit roughly similar properties.

Spatial Networks

  • M. Barthelemy
  • Computer Science
    Encyclopedia of Social Network Analysis and Mining
  • 2014

Professional diversity and the productivity of cities

This work proposes a theoretical framework that derives the form and parameters of the limiting distribution of professions based on the appearance, in urban social networks, of new occupations as the result of specialization and coordination of labor.