Data Visualization: Key Routes and Communities In London's Bike Rental Network
An anonymous reader writes to this article about a series of visualizations built from London bike rental data. "My favourite is the second map, it shows the main routes that exist between rental areas, coloured according to the local communities that exist in the network. So you can see the major flows of bike traffic within the city, which are mostly between major railway stations and work destinations. You can also see how the different local networks relate to each other — Hyde Park is its own little world, for example, while the networks around Kings Cross, Waterloo, and Liverpool Street are far more interconnected." (Several more just-as-interesting maps here, too. Wish every city had an interface to this kind of data, would make interesting reading for visitors as well as for locals.)
Here's something similar that covers more areas... a heat map of Strava rides:
http://raceshape.com/heatmap/
People will concentrate where more people already are. The location of bike facilities and support infrastructure like bike paths will dominate the "flow". It's not really all that insightful or interesting for that matter.
I biked around Montreal for a while with the Bixi bike share system. It was a great way to get around, especially as Montreal has both lots of Bixi stations and good support for cyclists (good bike lanes and reasonably respectful motorists).
I'd love to see the data and a selection of maps - there's a small map at http://http://mobilitylab.org/2013/03/07/heavy-use-of-montreal-bixi-bikesharing-system-displayed-with-new-open-data-map/ but it would be nice to see maps by day, by hour of the day, by favorite routes and the like - it might also help them improve the system (there were bike stations that were so popular that parking a bike there was difficult).
(Hmmm, captcha = "motorist" a nice bit of irony).