We made this project just for fun and learning new frontend technologies.
The first version written with JQuery at 2012. Then rewritten with Angular JS 1 at 2013 includes SSR support. For the mapping we used Openstreetmap tiles provided by Cloudmade.
Contents of the repository regularly syncronized to http://istanbus.org.
API of this service written is Erlang, hosted in here.
This code licensed with MIT license.