Tram travellers still won't be able to top-up their myki cards on-board a tram in 2016, but if it's any consolation, they might get to touch-on with a high-speed "next generation" myki reader.

The faster readers have been installed as a trial on one tram that is operating on route 11 between Docklands and West Preston, but could be placed on the entire E-Class fleet in coming months and years.

The same myki readers have already been installed at some railway stations where crowd crushes occur, including in the City Loop and at the MCG gates at the western end of Richmond station, and have reduced congestion at station gates.

Jacinta Allan, the Minister for Public Transport, said the readers registered tickets instantly.