PredictionAnalyzer

An app for aggregating and analyzing the accuracy of GTFS predictions using TripUpdates and VehiclePositions over time.

Prerequisites

• PostgreSQL 10+
• asdf
• direnv (recommended)

PostgreSQL and Direnv are available on macOS Homebrew.

Setup

1. asdf install
2. cp .envrc.template .envrc
   • You may have to adjust DATABASE_ROOT_URL in this file to reflect your Postgres install, e.g. changing postgres@ to your_username@
3. direnv allow
4. mix deps.get
5. mix ecto.setup
6. npm install --prefix assets

If you have previously set up the DB and run into issues, you may have to drop the DB and run mix ecto.setup to recreate it.

Common Tasks

• Run the app: mix phx.server (then go to http://localhost:4000)
• Run the tests: mix test