The SmartBus 903 Route, which runs from Altona through the northern suburbs to bayside Modialloc in the east, is a cross-city, trans-orbital premium bus service with 15-minutes frequency, extended service hours, dedicated bus lanes, priorities at traffic signal intersections and the use of Global Positioning System (GPS) technology to provide real time passenger information.

View SmartBus Route 903 in a larger map

Here is a link to a newspapers article, describing the experience of the reporter taking the SmartBus 903.

Quoting from the article:
“When we arrive a little after 2pm, the sun is shining. It is market day. Stalls are set up in the main street selling vegetables, eggs, home-made cakes, Dutch pancakes. I walk along the pier, enjoying the sea air, the milky blue of the sea and sky. Kirkwood is right: it is good to be in Altona.”