Mizter T wrote:

No standard gates that I've ever come across are bi-directional at the
same time - that would cause a total nightmare with people walking
head-first into each other all the time! Instead gates can simply be
switched from one direction to the other as required by traffic flow.

The Cubic *wide* gates have "Full-Wide", "Half-Wide" and "First Come,
First Served" settings.

The latter has the gate in the fully closed position by default (as
opposed to entry or exit), and will open in the appropriate direction
when a valid ticket or Oyster is presented.

Cheers,

Barry