Tom Chance for Lewisham West & Penge

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Analysing Southwark’s natural geography

By on 2nd November 2012

Following my map of London’s green and blue infrastructure, I have been working on some analysis of the land uses. I was inspired and encouraged to try this by Liliana’s interesting work called “imagining all of Southwark“. Lili and Ari

London’s natural geography

By on 26th October 2012

I’ve been playing around with open data from OpenStreetMap and Natural England to make a pretty map of “green and blue infrastructure” in London. Here’s the result: You can download a PDF version suitable for printing here:¬†natural_london. I’m pretty happy

Sitting around the data campfire

By on 27th January 2012

Similar to Gail Ramster, I went along to the Friday afternoon part of UK GovCamp 2012 without really knowing why. I suspect most people would say the same thing. You go because… well, you never know which useful people you

Problems and possibilities with ward boundaries

By on 8th December 2011

Being actively involved in my local branch of the Green Party means I’ve spent a lot of time wandering around carrying a map of a local ward. Almost nobody seems to know which ward they are in, often because the

Why map data sometimes matters

By on 1st December 2011

I was contacted recently by a parent campaigning for a local school to ensure its admissions policy is properly applied. Over-subscribed schools like this one are a common source of frustration and worry up and down the country. Here’s the

Making open data maps the almost-easy way

By on 26th October 2011

One of the annoying things about open data is that you often need ninja skills to do anything with it. OpenStreetMap contains a wealth of geodata, but most tools make you jump through several steps involving the command line and

Open scrutiny in the age of open data

By on 22nd May 2011

This is the first of perhaps two or three short essays inspired by Emer Coleman‘s masters dissertation on open data, written in a personal capacity and not as part of my job. In this post I want to look at

Can crowdsourcing improve open data?

By on 17th May 2011

I’ve written a guest blog over at the London Datastore about efforts to provide really good open data through OpenStreetMap. My main example is my work on OpenEcoMaps, which mixes imported (and checked) open data with crowdsourced OpenStreetMap data to

Maps, open data and activism on the Heygate estate

By on 19th April 2011

Andy Allan’s excellent post on cycle campaigning reminded me to blog about some mapping help I’ve given a campaign group called the Elephant Amenity Network. One of their long-running issues has been the clearance and demolition of the unfairly maligned

Announcing OpenEcoMaps to geeks

By on 11th April 2011

I’m happy to announce that OpenEcoMaps is now stable and ready for use, albeit with a few wrinkles that I hope some more able hackers can help me iron out.¬†OpenEcoMaps takes data about “eco” (green / sustainable) features stored in