No Parking at an any time(small print about how there’s a fine of £60 for doing so and if you don’t play up they will go to the DVLA for your details)
Any cycles chained or locked to these railings will be removed -contact security
There are some covered bike racks, about enough for ten bicycles. Why no more?
Even after taking away the pavements to provide parking, even after creating a parking basement for staff, there isn’t room for any bicycles.
As to the other signs -and interesting topic. It’s not clear that this is "a private road" -it is just a street in Kingsdown, albeit one whose pavement has been co-opted by the BRI.
Someone with a residents permit and time on their hands should test this