They are using finger scanning in conjunction with ticket scanning. You put your card into the machine, wait for the light to flash, and then put your pointer and middle finger in the shape of a v into the machine. I am not sure why they are doing this. I do not think that is working as well as they anticipated. The machine never acknowleged my husband's finger scan on either time that went through the gate. They just told him to go through. They do not scan the fingers of small children.