How many buildings are there in London? What are their characteristics? Where are they located and how do they contribute to the city? How adaptable are they? How long will they last, and what are the environmental and socio-economic implications of demolition?
Colouring London is a web-based citizen social science project designed to help address these questions by crowdsourcing and visualising twelve categories of information on London’s buildings.
This repository will contain open-source code for the project which:
- stores building footprint polygons and source metadata
- allows site users to record building attribute data
- serves map tiles rendered from collected data
- allows site visitors to download the collected building attribute data
Building attribute data collected as part of the project will be made available for download under a liberal open data license (ODbL).
Setup and run
- Provision database (see
- Load buildings and geometries to database (see
- Install app dependencies:
cd app && npm i
- Run tests:
- Run app:
In development, run with environment variables:
APP_COOKIE_SECRET=test_secret \ PGHOST=localhost \ PGUSER=dbuser \ PGDATABASE=dbname \ PGPASSWORD=dbpassword \ PGPORT=5432 \ TILECACHE_PATH=/path/to/tilecache/directory \ npm start
Colouring London is being designed and built by the Centre for Advanced Spatial Analysis (CASA), University College London and funded by Historic England. Ordnance Survey is providing building footprints required to collect the data, facilitated by the Greater London Authority (GLA), and giving access to its API and technical support.
Colouring London Copyright (C) 2018 Tom Russell and Colouring London contributors This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
Thanks goes to these wonderful people (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!
Even more thanks go to Colouring London contributors, funders, project partners, consultees, advisers, supporters and friends - everyone involved in the project.