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Posted by on Feb 2, 2012 in Featured Maps, London, R Spatial, Visualisation | 5 comments

London Cycle Hire and Pollution

London Cycle Hire and Pollution

As a cyclist in London you can do your best to avoid left turning buses and dozy pedestrians. One thing you can’t really avoid though is pollution (although I accept cyclists probably aren’t much worse off than pedestrians and drivers in this respect). To illustrate this I have taken data for 3.2 million journeys from the Barclays Cycle Hire scheme and combined it with GLA pollution data for particulate matter. Unsurprisingly, pollution is worse at junctions and where there is lots of static traffic, with the popular cycling routes around Waterloo Bridge and the Strand particularly affected. Most of the journeys are subject to relatively low (by London standards) levels because cyclists try and avoid the busiest routes, such as Euston Road. The loop around Hyde Park is really popular with Boris Bikers and fortunately one of the least polluted but clearly more could be done to sort out the pollution hotspots around the west end. The routes have been guessed using routing algorithms and OpenStreetMap data and optimised for cyclists (ie...

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Posted by on Jan 7, 2011 in Featured Maps, London, Visualisation | 4 comments

Boris Bikes/Barclays Cycle Hire Average Journey Times

Boris Bikes/Barclays Cycle Hire Average Journey Times

The visualisation above shows the average relative duration of Boris Bikers’ weekday journeys over a 4 month period at hourly intervals. For each time step the average journey time (in seconds) from each docking station has been calculated.This information is interesting because it shows the preference for short journeys around the City of London, whilst people on the outskirts of the the scheme (especially to the west) take longer journeys. I also like the the fact that journey times around Soho and the West End are longest around 23:00- perhaps correlating with the number of after-work drinks consumed. In one visualisation you get to see the changes in the cyclists behaviour- from the early morning commuters through to the late night cruisers The data come from Transport for London’s recent release of 1.4 million Barclays Cycle Hire journeys to their developers area (thanks to this FOI request). The data are said include all the journeys between 30 July 2010 and 3 November 2010, except those starting between midnight and...

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Posted by on Aug 12, 2010 in London, Visualisation | 2 comments

A day in the life of the London Cycle Hire scheme.

For the past few days I have been taking screen shots of Oliver O’Brien’s hugely popular London Cycle Hire Status Map. How the map works is explained on Ollie’s blog. I have picked 24 hours (from midnight Tuesday 10th to midnight Wednesday 11th) to demonstrate the flows of people in and out of London. Nothing much happens in the early hours, then the dots come alive in the centre as people start to flood in and fill up the stations. Things stay reasonably constant throughout the day until rush hour in the afternoon when the red stations in the centre of London become blue as people use the bikes to get home. Each second of the video= 1 hour in the day. 24 hours of the London Cycle Hire Scheme from James Cheshire on...

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