CartoDB is used to create an interactive map showing the nearest RTD transit locations and intersecting routes in Denver based on a user's location and destination. Shapefiles of RTD bus routes and stops are loaded into CartoDB along with Leaflet and other open source software. SQL queries retrieve nearest stops and routes between stops allowing users to plan trips using real-time transit data. While some queries have issues, the demo shows promise in providing an informative, fast tool for transit users.