Originally Posted by
Neptune262
I would say that RSVA is still very useful in some tower operations, it depends on the nature of the traffic and airspace. Yes, maybe for predominantly IFR traffic into a busy airport, RSVA is not that used, but for others with mixed mode traffic, it is a tool that ATCOs still utilise.
The difference now is the "visual" part (as understood to be glass window and eyeball) is being replaced by an electronic display and eyeball.
For "mixed mode" do you mean IFR/VFR interactions?
If so, in Class D they are not provided with separation per se so RSVA is a bit of a misnomer.