With the Spitsgids project, we are predicting how busy your train will be, and add it to the iRail API, so you can take a train earlier or later.
Check out https://irail.be/app for more information
Our blog: https://hello.irail.be
Follow us on twitter: https://twitter.com/iRail
Special thanks to Arne Nys who created these slides during open Summer of code 2016 (http://2016.summerofcode.be)