Free public transport on all Transperth services on Sundays

Decided to take a train ride to Ellenbrook.
Newish suburb 32 km north of Perth.
Waiting at the station which sits in the middle of the Tonkin Hwy.
A constant flow of traffic going both ways on the hwy.
The cars go through an overpass underpass creating an echo chamber.
So it is very noisy.
Every now and then a high powered motorbike passes at what seems like 200kmph.
So, so loud.
There goes an extremely fast Ford which was louder than the motorbike.
It is like I am at a car track