Complex sentence: The entire tram network has now changed over to the myki smartcard fare collection system, with passengers needing to buy and top up a valid myki before boarding, or risk a fine of up to $180.
Split into simpler sentences: The entire tram network has now changed over to the myki smartcard fare collection system. Passengers need to have bought and topped up a valid myki before boarding, or risk a fine of up to $180.