RESEARCH PATHWAY: personal reflections on a career in research
Polly Hudson (Alan Turing Institute) explains how her curiosity about planning knowledge and local community engagement led to new ways to capture and represent 2D, 3D and 4D spatial data about building stocks and urban form. New challenges arise for creating dynamic urban models and platforms: promoting public participation and understanding, use as a planning tool, combining diverse data sources, and simulating the behaviour of building stocks over time.
At university, I studied art and architectural history, although I was always much more interested in learning about how and why places were built, than in artists’ and architects’ lives. This experience encouraged me to ask questions about the process by which ordinary buildings are produced, and the reasons for their construction and form. My interest, as a designer and researcher, is how to create inclusive, interesting, accessible and useful resources on building stocks. This entails harnessing the skills and knowledge from many types of audience.
I grew up in a family involved in medical research which exposed me to the value of international collaboration in scientific research. An important influence was the connection between the diagnosis / treatment of disease and the technological innovation in microscopy that advanced the understanding of biological systems. Realising how buildings could be studied like ‘cells’ using Geographic Information Systems (GIS) was a major turning point in my career. The capture of spatial statistics at cell level on the composition, dynamics and operation of stocks is necessary to understand urban systems. This led to a particular interest in building footprints, both as graphic representations of building ‘cells’, past and present, as geospatial filing cabinets through which diverse types of data can be collated, and as attributes from which other characteristics can be inferred. The Periodic Table and its use of simple 2D graphic to infer properties, structure and reactions of the chemical elements make data has been another source of inspiration. Could the possibilities offered by graphic representation be used to forecast the future dynamic behaviour of stocks?
In 1995 I took a part time job looking at planning applications on behalf of a local conservation group. I decided to produce coloured maps showing the age of buildings in that district, finding it inexplicable that maps of this kind did not already exist. I was also struck by planners’ lack of interest in residents’ views on planning applications or in the impacts of demolition on local communities, when so much knowledge on how local areas operate over time is held by these communities and conservation groups.
I initiated The Building Exploratory charitable trust in London to harness and visualise community knowledge about building stocks. This involved a process of co-creation with local stakeholders to produce a model of local building stocks for free public exhibitions/resource centres, which combined physical and digital tools. This brought together expertise from the arts, humanities and science to explore building construction and design, performance and history. Here I also began to explore the use GIS, and data animations, as a means to rapidly convey information on buildings to the public. Providing users with the ability to zoom down on their homes and access current and historical maps, aerial photography, and streetview images at building level was found to be of exceptional interest to visitors (tested before Google maps became available). Since this time my work has largely focused on the development of spatial data visualisations as a powerful, efficient way to support public engagement in sustainable development.
Experimentation with Steve Evans in the early 2000s, before collaborating again at University College London (UCL), resulted in several projects which informed later work including a 3D digital animation of the demolition and construction of all buildings in a 1km2 area of London, between 1750 and 2010 and an animated history of fossil fuel use in the UK.
In 2014 I commenced a PhD at UCL, initially to look at methods for tracking demolition in the UK. This multidisciplinary academic environment exposed me to an incredibly diverse range of expertise. However, owing to lack of availability of basic data to answer my research question, I instead began to explore the methods and technologies that could capture and visualise data on demolition, and on the composition, quality and short- and long-term dynamics of the building stock. This involved experimenting with the use of building footprint data to help harness and share knowledge. The goal was to allow the public and other stakeholders to see and become involved with building attribute data capture and visualisation for UK cities at cell level, and to seamlessly interlink information on stock composition, performance and dynamic behaviour.
As part of my PhD I began to work on the development the Colouring London prototype platform, collaborating with Tom Russell, the project’s technical architect. The idea was to integrate tools, ethical frameworks and crowdsourcing mechanisms, with the co-creation model and ethical framework developed at the Building Exploratory. This also afforded opportunities to develop an open platform involving multiple sectors, disciplines and stakeholders in supporting the scientific analysis of stocks. Many possible applications for proposed attribute data were identified (e.g. improved retrofit targeting, performance tracking of development teams, more accurate calculations of energy and waste flows, greater transparency within the planning system). However, the initial focus was mainly on the ability of the platform to capture high quality age data for typology location and energy analysis.
Questions began to arise on how a sufficient quality and volume of (current and historical) microspatial data could be produced in order to understand the stock as a complex dynamic system, and to detect underlying rules of operation within stocks. Automated and crowdsourced methods of data capture therefore started to be tested as well as feedback loops between these. These include mechanisms that enable humanities experts to easily translate text-based information and unrecorded knowledge into spatial statistics for scientific use.
The Colouring London project moved to the Alan Turing Institute in 2020 becoming The Colouring Cities Research Programme (CCRP). Its remit is to promote the efficient reproduction of open-source platform code by international academic partners to maximise the volume and quality of building attribute data available at global level. We currently work with an international cohort of academic colleagues to test code across countries, share software engineering skills and knowledge on different aspects of the stock. The goal is to improve the effectiveness and efficiency of platforms.
Challenging questions that still need to be addressed include:
Evaluating mitigation strategies for building stocks against absolute climate targets
L Hvid Horup, P K Ohms, M Hauschild, S R B Gummidi, A Q Secher, C Thuesen, M Ryberg
Equity and justice in urban coastal adaptation planning: new evaluation framework
T Okamoto & A Doyon
Normative future visioning: a critical pedagogy for transformative adaptation
T Comelli, M Pelling, M Hope, J Ensor, M E Filippi, E Y Menteşe & J McCloskey
Suburban climate adaptation governance: assumptions and imaginaries affecting peripheral municipalities
L Cerrada Morato
Urban shrinkage as a catalyst for transformative adaptation
L Mabon, M Sato & N Mabon
Maintaining a city against nature: climate adaptation in Beira
J Schubert
Ventilation regulations and occupant practices: undetectable pollution and invisible extraction
J Few, M Shipworth & C Elwell
Nature for resilience reconfigured: global- to-local translation of frames in Africa
K Rochell, H Bulkeley & H Runhaar
How hegemonic discourses of sustainability influence urban climate action
V Castán Broto, L Westman & P Huang
Fabric first: is it still the right approach?
N Eyre, T Fawcett, M Topouzi, G Killip, T Oreszczyn, K Jenkinson & J Rosenow
Gender and the heat pump transition
J Crawley, F Wade & M de Wilde
Social value of the built environment [editorial]
F Samuel & K Watson
Understanding demolition [editorial]
S Huuhka
Data politics in the built environment [editorial]
A Karvonen & T Hargreaves
European building passports: developments, challenges and future roles
M Buchholz & T Lützkendorf
Decision-support for selecting demolition waste management strategies
M van den Berg, L Hulsbeek & H Voordijk
Assessing social value in housing design: contributions of the capability approach
J-C Dissart & L Ricaurte
Electricity consumption in commercial buildings during Covid-19
G P Duggan, P Bauleo, M Authier, P A Aloise-Young, J Care & D Zimmerle
Disruptive data: historicising the platformisation of Dublin’s taxi industry
J White & S Larsson
Impact of 2050 tree shading strategies on building cooling demands
A Czekajlo, J Alva, J Szeto, C Girling & R Kellett
Social values and social infrastructures: a multi-perspective approach to place
A Legeby & C Pech
Resilience of racialized segregation is an ecological factor: Baltimore case study
S T A Pickett, J M Grove, C G Boone & G L Buckley
Latest Commentaries
Time to Question Demolition!
André Thomsen (Delft University of Technology) comments on the recent Buildings & Cities special issue ‘Understanding Demolition’ and explains why this phenomenon is only beginning to be understood more fully as a social and behavioural set of issues. Do we need an epidemiology of different demolition rates?
Where are Women of Colour in Urban Planning?
Safaa Charafi asks: is it possible to decolonialise the planning profession to create more inclusive and egalitarian urban settings? It is widely accepted that cities are built by men for other men. This male domination in urban planning results in cities that often do not adequately address challenges encountered by women or ethnic and social minorities. Although efforts are being taken to include women in urban planning, women of colour are still under-represented in many countries, resulting in cities that often overlook their needs.