Data Visualisation

The Geography of the Revoke Article 50 petition

Introduction The ‘Revoke article 50 and remain in the EU petition’ is the most popular petition ever, which aims to stop the brexit process. The rules are that after 10,000 signatures, petitions get a response from the government, after 100,000 signatures, petitions are considered for debate in Parliament and after 17.4 million, we stop Brexit (Andrea Leadsom, 2019). As of writing this (25/03/19 17:00 GMT), the petition has amassed over 5 million signatures.

How to quickly visualise massive spatio-temporal data

Background Are you collecting lots of geospatial data and need a way to quickly visualise what you’ve got? Read on! I had this problem; I was collecting a lot of information on my daily movements from Arc App: Location and Activity (more on the use of Arc for research later). Additionally, I wanted to quickly see what features of the urban environment (e.g. greenspaces) I was being ‘exposed’ to. The solution was Uber’s open source geospatial analysis tool: Kepler.

Devolved parliaments and assemblies Legislation

Scotland, Wales and Northern Ireland have had devolved powers since 1997, 1997 and 1998 respectively. During this time 480 Acts have been passed, an act being defined as primary legislation which has been through several stages from: Pre-legislative scrutiny on the draft piece of legislation (bill) First Reading - first presentation, no voting Second Reading - debate on principles, voting Committee Stage - Considers bill clauses Consideration or report stage - Consider further amendments Third Reading - Consider final text Passage - Sent to other house (i.

Mapping Green Space and Traffic in Glasgow

Background The health benefit of greater availability of greenspaces is mediated by the quality of these spaces (Zhang et al., 2017). Recently, quality was associated with psychological distress, whereas availability had no effect (Feng and Astell-Burt, 2018). Both of these measures of quality were self-reported. Another method to determine quality is from GIS-derived measures of land use. Perhaps the optimal method is using questionnaire self-report and GIS-derived measures as has been developed by (Stessens et al.

Mapzen Isochrone Maps

I have just come across Mapzen’s routing engine (Valhalla), which can be used to produce incredible isochrone maps, mentioned in this blog post. If you’ve not heard of Mapzen they provide mapping tools for developers so that their websites can be converted to the spatial side. The neat thing about isochrone lines is that they show the boundary around a point where travel time is equal. So you can ask some interesting proximity based questions (e.