I don't understand. How are they going to make it feel like you are going through a brick wall. I don't get the "zigzag" meaning.
I believe the zigzag effect is, upon entering the station platform, you will see a impenetrable brick wall. It looks like you cannot pass through. The queue line then forces you to step to the side (left or right). Upon the diagonal, an entrance is revealed.
I would think they can dress up the reveal in clever ways to make a more powerful presentation.
I thought that maybe an effect with mist and a projected image of a wall would have been the best choice.