How the Entrance of Magnet works?
Get Out: (Hard Part)
There are two ways to get out:
1. Trigger the sensor on the top
2. Push the button beside
Because the sensor isn't really sensitive, it's hard to detect you when you move quickly and not stand right in front of the door. So you have to stand right in front of the door, even raise hand in front of the sensor to make sure it detects you.
When people try to get out, someone try to waive their hand to unlock, someone just push the button
There is no feedback for pushing the button. If you didn't push right (Probably when you're hurry to get out), it can't open.
Enter is kind of easier to do, you just need to put your card on the trgger. But there is still space to improve.
Sometimes people may just use the card within their pocket to touch it without taking it out. (Probably it's because they have a lot of stuff on their hand) But if they try to open through this way, for some people it's too high, for some others it's too low. Maybe make it longer to fit everyone's height.
Some Good Design:
The door close pretty slowly, which is good. People get in and out pretty frequently. Because it's slow, people can follow other's step and do not have to open and close door every time. This increases the efficiency.