The Bartlett Centre for Advanced Spatial Analysis


CASA Working Paper 146


1 March 2009

Random planar graphs and the London street network

In this paper we analyse the street network of London both in its primary and dual representation. To understand its properties, we consider three idealised models based on a grid, a static random planar graph and a growing random planar graph. Comparing the models and the street network, we find that the streets of London form a self-organising system whose growth is characterised by a strict interaction between the metrical and informational space. In particular, a principle of least effort appears to create a balance between the physical and the mental effort required to navigate the city.

This working paper is available as a PDF. The file size is 1447KB.

Authors: Michael Batty, Andrew Crooks, Duncan Smith, Paolo Masucci

Publication Date: 1/3/2009

Download working paper No. 146.