Average wait time: Less than 5m.

[Claustrum]

This. It doesn't seem to actually be an average at all.

If you're the only person in the queue, it will feed your own queue time back to you, updated at three-minute intervals.

It may keep a genuine average if there are multiple people completing the queue and getting into the duty, but if so then the calculation falls over when the traffic flow ceases.

So what purpose does this estimated wait time serve if it says I'll have to wait less than 5 minutes on average, but it actually takes longer than 8 hours?