In message , at 22:46:49 on Thu, 21 Mar
2019, Recliner remarked:

As the Victoria line is entirely underground,

Apart from the depot at Northumberland Park.

Yes, we know — why do you think I worded my comment the way I did?

I have no idea. It was almost suggesting that efficient brakes were not
required in the depot in rainy weather.
--
Roland Perry