1. Spread the crowd out evenly to each turnstile.
Do not allow people to get jammed up at just one spot if you have multiple options. The people at the back of the line may not know that they can spread out, so you have to let them know. Keep them separated so they will not all be trying to use the same entrance.
2. Bring people with questions or concerns aside.
If someone does not have a token to get through, for instance, do not let them stand at the turnstile and talk to the security personnel about what they should do or how to get more tokens. Bring them aside and work things out, allowing other people to get through while the problem is being taken care of.
3. Do not let people rush or push.
When people are fighting toward the front, they actually slow the whole line down. They can also cause arguments and altercations, which really slows down the movement. You need to make sure that people only walk forward in a calm, controlled fashion, and they will get through more quickly.