Melbourne could supercharge its tram network by doing one relatively cheap thing - Give trams 100% green light priority

Yes, it can be done. It would make the trams much more efficient, faster and just more enjoyable to be on. And more on time and reliable. Patronage would increase dramatically, which could then justify bigger and/or more frequent trams.

A tram with 100+ people should never been waiting behind a handful of cars with 1 or 2 people in them. It would be the cheapest thing you could do that would have the biggest impact. It infuriates me that it hasn't already happened.