Tuesday, June 23, 2015

The Growing and shrinking populations of Europe, 2001-2011

Jonn Elledge (editor of the great website City Metrics) points out to this amazing map showing the population changes of every European municipality between 2001 and 2011. The colors represent average annual population variation, where red gradients represent growth rates between 0 and 2 per cent or over, and blue gradients represent depopulation rates of the same magnitudes. Yellow areas are stable.

Despite converging trends of low fertility and mortality rates in European countries, the map shows a tremendous diversity in the population dynamics of European municipalities, mostly driven by migration trends. A common trend in almost all countries, though, is the population growth in cities and suburban municipalities. This population shift to cities also present remarkably different patterns in different countries, what probably gives some good material for researchers working on spatial demography and urbanization. There are plenty other interesting things to comment on this map but this would go beyond my capacity and my procrastination time limit .

The maps was created by the German Federal Office for Building and Regional Planning (BBR) and you can check a high definition version of the map here.


Population Growth Rates of European municipalities, 2001-2011

Sunday, June 21, 2015

Mapping the migration of displaced people

The United Nations High Commissioner for Refugees (UNHCR) published this month their annual report on Global Trends of forced migration and refugees.



The figures are staggering.
"Nearly 60 million people are displaced around the world because of conflict and persecution, the largest number ever recorded by the United Nations. About 14 million of those fled in 2014, according to a report released this week." 
"About 11.6 million Syrians have been displaced, nearly half of Syria’s entire population."

Origin-Destination Flows of Refugees
[image credit: Sergio Peçanha and Tim Wallace, NYT]



85 percent of all refugees are living in this area
[image credit: Sergio Peçanha and Tim Wallace, NYT]

Thursday, June 18, 2015

NYC Subway From Above

Cameron Booth (who runs the great blog Transit Maps) points out to this beautiful map of the New York city subway as seen from above.

[image credit: Arnorian]

Soundtrack:

Wednesday, June 10, 2015

The London Underground In 3-D

Bruno Imbrizi is a  Brazilian web developer and programmer that moved to London three years ago. Using publicly available data from Transport For London, Bruno has created and awesome interactive 3D map of the London Tube that I think some of the millions of readers of this blog might find interesting.

Sophie Weiner has written a nice piece on Bruno's work and you can check it here. You can also check some other cool dataviz of London underground in the Related Links, below.


[image credit: Bruno Imbrizi]

Related Links:

Tuesday, June 9, 2015

Friday, June 5, 2015

How far can you go from any European capital to anywhere else by train?

Stephan Franziskus runs an interesting blog where he has written a great post about the history Isochrone Maps. These maps use color gradients and contour lines to visualize the places one can reach from a single destination within different time windows (isochrones).

obs. We have already posted about these maps in this blog to show some isochronic maps of American railways in the 1800s, a similar map departing from Rome during the times of the Roman Empire, and a contrast between Old and New techniques of isochrone maps.

Stephan Franziskus shows a very precious map, created by Francis Galton (yeap, the same Galton who demonstrated the central limit theorem using a 'bean machine'), which shows the number of days to get to different places in the world if you were to departure from London in 1881.


More recently, Peter Kerpedjiev has applied the same idea to estimate the places one can reach from different European capitals within different time windows using only trains and walking. There is a very good piece by Lazaro Gamio published in The Washington Post covering Kerpedjiev's work. You might like it.

click on the image to enlarge it
[image credit: Peter Kerpedjiev, Lazaro Gamio, WP]