Chronobus is an interactive map that allows comparing how far you can travel by bus before and after subsidizing system in Rio de Janeiro.
This is a Next.js application deployed on Vercel. This allows using the Vercel Edge cache to serve the isochrones fast enough to have a smooth experience.
The mapping library is mapbox-gl.
The data is stored on a Postgres database hosted at Supabase.
The pre-processing is a mix between Node.js scripts and SQL queries. It is currenly triggered by hand and processed locally.
We use next-i18next to translate the app into various languages. If you'd like to contribute a language, you can do so by submitting a Pull Request with a new file in public/locales/[your language]/common.json, and editing next-i18next.config.js to add your locale name.
Spin up the database
source .env.sample
dc upSetup env vars and migrate database
npx prisma migrate dev Serve website
npm run devBuild isochrones by running add-geoms.ipynb notebook and createing a env file with the following packages:
pip install -r requirements.txt