Hex Maps for the Survation Poll of 31 March 2024

Hex Maps In 2017, ODI Leeds (now Open Innovations) produced a Hex Map of UK parliamentary constituencies that was extremely helpful for visualizing electon results because it represented all 650 constituencies as hexagons of the same size. This obviously comes at a cost, namely that Britain is distorted, particularly in areas with high population density (such as London) and those of low population density (such as Scotland). Both adjacency and position of constituencies are affected. The rich compensation is that the visual composition of the map (in these cases, the colours) accurately represent the make-up of the House of Commons resulting from the election (or, as here, from the poll in question).

Boundary Changes There have been significant boundary changes since 2019, created (inter alia) to equalize the size of the population among constituencies so that (with the exception of five protected island seats), every constituency will must have an electoral with 5% of 73,393. Naturally, this means that new electoral maps, and new electoral hex maps, are required.Open Innovations has produced such a new hex map, used here and described in this post by Stuart Lowe,and available for download as a .hexjson file from their Github repository.

Purpose Ahead of the 2024 (or possibly 2025?) general election, we wanted to try out the map, and the recent large MRP opinion pollconducted by Survation (published 31 March 2024) provided suitable data.The first two maps show the results from poll, exactly as reported by Survation. The third map is similar to the first, but shows the constituencies that have changed in bright colours, and those that have remained the same in paler colours.Northern Ireland was not included in the poll (so is not shown), and the white 'missing' constituency is the Speaker's, Chorley, which is traditionally uncontested.

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