London Transport (uk.transport.london) Discussion of all forms of transport in London.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old December 6th 13, 04:41 PM posted to uk.transport.london
external usenet poster
 
First recorded activity at LondonBanter: Oct 2013
Posts: 2
Default Hard Sums


If you dont mind a few hard sums, this might be worth a look, if you
like thinking about roads as networks ...

http://arxiv.org/abs/1311.7284

Exploring the Evolution of London's Street Network in the Information Space: a Dual Approach

A. Paolo Masucci, Kiril Stanilov, Michael Batty

We study the growth of London's street-network in its dual representation, as the city has evolved over the last 224 years. The dual representation of a planar graph is a content-based network, where each node is a set of edges of the planar graph, and represents a transportation unit in the so-called information space, i.e. the space where information is handled in order to navigate through the city. First, we discuss a novel hybrid technique to extract dual graphs from planar graphs, called the hierarchical intersection continuity negotiation principle. Then we show that the growth of the network can be analytically described by logistic laws and that the topological properties of the network are governed by robust lognormal distributions characterising the network's connectivity and small-world properties that are consistent over time. Moreover, we find that the double-Pareto-like distributions for the connectivity emerge for major roads and can be modelled via a stochastic content-based network model using simple space filling principles.


  #2   Report Post  
Old December 6th 13, 06:47 PM posted to uk.transport.london
external usenet poster
 
First recorded activity at LondonBanter: Nov 2006
Posts: 1,147
Default Hard Sums

On 06/12/2013 16:41, wrote:

http://arxiv.org/abs/1311.7284

First, we discuss a novel hybrid technique to extract dual
graphs from planar graphs, called the hierarchical intersection
continuity negotiation principle. Then we show that the growth of the
network can be analytically described by logistic laws and that the
topological properties of the network are governed by robust
lognormal distributions characterising the network's connectivity and
small-world properties that are consistent over time. Moreover, we
find that the double-Pareto-like distributions for the connectivity
emerge for major roads and can be modelled via a stochastic
content-based network model using simple space filling principles.


Isn't that just a slightly simplified explanation of how to use Oyster
to interchange at Wimbledon?


--
Arthur Figgis Surrey, UK


Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
When transport came to a halt That hard winter thearklightreturns London Transport 0 June 2nd 10 07:54 PM


All times are GMT. The time now is 02:00 PM.

Powered by vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 London Banter.
The comments are property of their posters.
 

About Us

"It's about London Transport"

 

Copyright © 2017