London’s Suburban Town Centres Profiler – a Geovisualisation application without interactive mapping

This week, we have released the ‘Suburban Town Centres Profiler’. The application can be accessed from the Towards Successful Suburban Town Centres website, and was originally developed to support hypotheses development within the project’s team. It’s been quite a while that we’ve been working on the range of maps and information the profiler is based on, practically since last summer.

All the details about the profiler are on its website, but an interesting point that underpins it is that, in some cases, it is worth sacrificing the interactivity of the map itself to allow users to concentrate on the information. In HCI terminology, the main task is not about interaction with the map but with the information and its meaning, so providing interactive maps will actually reduce the usability of the application!

The maps on the profiler do not support zoom in, zoom out or panning. However, they are not meant to be interactive by themselves. The idea behind the application is to allow systematic and consistent comparison of many layers of geographic information across a range of 26 town centres in London’s suburbs. To achieve this task, the interface allows us to switch between themes and explore various datasets quickly, and, by ‘locking’ the map itself, we can ensure that we are looking at each Town Centre at the same scale and to the same extent. I’m sure that there are other cases where such an approach is the correct one – not all interactions are necessarily helpful to the user’s task…

MySociety’s FixMySteet is somewhat similar – it is holding the scale constant while allowing Panning.

Published by

mukih

Professor of GIScience, University College London

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