Morphology of travel routes and the
organization of cities
Minjin Lee, Hugo Barbosa, Hyejin Youn, Gourab Ghoshal
Petter Holme, Tokyo Institute of Technology
Fractal structure Street network analysis
Polycentric or monocentric
R. Loufand M. Barthelemy (2014) Scientiﬁc Reports
R. Murcio el al. (2015) PRE
Footprints of socioeconomic interactions
Masucci (2009) Eur. Phys. J. B
Crucitti et al. (2006) PRE
Christallerian Central Place Löschian Dematerialization
Proxy for socioeconomic development
• We conducted a systematic mesoscale study of street morphology through the introduction of a novel metric
that we term inness.
• Routes across cities display a measurable drift (or inward bias) towards the city center, with the degree of
inward drift balanced by a competing force due to congestion that varies across the cities.
• !e average statistical patterns of routes, is consistent with a core-periphery structure, and hierarchical
levels of routing in the majority of cities.
• Inness patterns of a city can be understood as a product of urban development and geographical or artiﬁcial
constraints of cities.
• Taken together the results are indicative of a presence of intrinsic hierarchical relationships inherent in the
process of urban socioeconomic evolution.
Minjin Lee, Hugo Barbosa, Hyejin Youn, Gourab Ghoshal, Petter Holme, arXiv:1701.02973