One Point Perspective
One-Point perspective leads the audiences eyes towards one point in the near the center of the screen (aka the horizon), this gives whatever is on the horizon (which in this case is the double doors) a distant far away presence
Long Steadicam Takes
Long Steadicam Takes to make it feel like you are chasing after Danny and this low angle also help obscure your view of whats ahead of Danny creating this fear of what could wait in front
Deep Focus
Deep Focus is used to make the audience not just focus on the actors but the whole frame, for instance in this scene Kubrick uses deep focus to show the audience not just the world leaders but also the countries they lead that are displayed behind them
Symmetrical Composition
Symmetrical Composition creates an unnerving presence and creates sinister undertones which is the exact effect Kubrick wants. In this scene the twins at the end of the hallway have a very eerie and unnatural aura because symmetry is unnatural which Kubrick uses here