COMMUTING IN THE UK.
I have been working with the UK census flow data recently. These maps show the number of commuters by mode from census output zone of resident to census output zone of workplace. The visual effect is made solely from lines representing journeys to work and this clearly highlights the main urban areas of the UK. What is striking is the difference between modes, particularly in London. While it is no surprise, the maps highlight the huge pull London has and how public transit is by far the dominant mode. It also shows that public transport is lacking in many urban areas in the South of England. You may also notice Cambridge shining brighter than many cities several times larger, in the cycling and walking map.
The maps have been created in QGIS (more on this in a later post) and use data compiled by the UK data Service (https://census.ukdataservice.ac.uk/get-data/flow-data). To generate the underlying geo data, I use python and the excellent geo processing libraries, Shapely and Fiona. (More on these in a later post also).