I'm going to start by telling you about the Yellow Plaque scheme, which has been running in Sydney for over forty years.
Does it mean "happening"?
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Sign up to join this communityAccording to the Oxford Dictionary
- Continue or be valid or operative for a particular period of time.
So it means that the Yellow Plaque scheme started forty years ago and it has been operating since then to this day. It's not just that it's happening right now. As pointed by Rajat, it also have a sense of continuation in time.