SimpleLUAS is a clean, easy to use website which interacts with the Real Time Passenger Information (RTPI)
API from Transport Infrastructure Ireland
It's coded in PHP and I have a demo running which you can access on this page. The source code is also available on GitHub if you'd like to check it out.
Check out a demo of the project here. The core functionality works and all queries are made server side at present.
Feel free to check out the project on GitHub. There you can see the existing features and any proposed features I will be adding when I get around to it.