Trams have absolute priority
Trams always have right of way. This is not a suggestion or a general guideline - it's absolute. Trams cannot swerve, they cannot stop quickly, and Dutch law gives them permanent priority over every other road user.
This means even if you have a green cyclist light and a tram is approaching on its own green phase, you must yield to the tram. Your green light controls you and cars - it does not control the tram. The tram's signal is independent, and its priority overrides yours.
This catches more expats off guard than any other rule. The instinct that 'green means go' is so deeply ingrained that it overrides caution. At any junction where tram tracks cross your path, scan for approaching trams before moving - even on green.