The Colour of Votes in London
Utilizing the same technique as the national election map, I have mapped the Local Election results for the Greater London Area at Ward level for 2006 and 2010. As before I have used RGB space to choose the final colours of each Ward based on the proportion of people voting Labour (coloured red), Other (incl. Liberal Democrats, Greens, UKIP etc) (coloured Green) and Conservative (coloured blue). So deep red Wards are strong Labour supporters, purple Wards are an even split between Labour and Conservative, grey Wards are split evenly between all three groups and greener colours suggest a decreasing dominance of the two largest parties. You can see there are subtle differences between the two years, with 2010 having colours closer to the centre of the colour triangle in many Wards, suggesting a more even split in the votes. As before I appreciate these maps are very generalised (especially if you are interested in the relative influence of the smaller parties) so Ollie O’Brien has produced a more detailed, interactive, breakdown (with the same colour scheme) here. The results were downloaded from the London Data Store.