Articles in category: data

Translating polls into policy outcomes

14 July 2019 - In a report on last May’s Australian election, Nick Evershed of the Guardian translated live election results into support for specific policy outcomes.

Traffic flow maps

19 May 2019 - A 1976 traffic study published by the city of Amsterdam contains beautiful traffic flow maps showing how cyclists and motorists use the city’s streets. A tweet alerted me to the fascinating history of traffic flow maps.

Scraping Airbnb

12 May 2019 - Airbnb is not exactly keen to share data that might help analyse its impact on local housing markets. In 2016, the Amsterdam Municipality decided to collect Airbnb data using a scraper - a computer programme that automates the job of retrieving information from web pages.

Visualising Amsterdam’s cyclists

6 April 2019 - Bike City Amsterdam, a new book by Fred Feddes and Marjolein de Lange, recounts how Amsterdam developed a cycling policy (more on the book below). An important source for the book is the archive of the Amsterdam branch of cyclists’ organisation Fietsersbond. In addition, traffic data was used to analyse trends.

Using a jagged baseline to indicate a broken y-axis

31 March 2019 - In an article for the recently created Data Visualisation Society, R.J. Andrews suggests using a jagged baseline to indicate a broken y-axis (i.e., an axis that doesn’t start at zero). The idea - inspired by some beautiful charts dating back to WWI - is to suggest that the bottom part of the chart has been torn off. I like the idea - but I found it isn’t easy to implement.

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