The number of priority seat will be no more “fixed” but “adaptable” to the need.  All seats on train are available as Priority Seat.  Everyone who needs a seat can get an induction sticker and paste it on the Easy Card.  Then, the system can receive the signal delivered from Easy Card, and calculate the required number of Priority Seat.  The seats nearest the door will be lighted up and turn to priority seats.  Moreover, the information of Priority Seat will be displayed on a screen at the platform.  With this system, those handicapped person would not have to rush on train just for any seat available.  Every seat on the train could get the best efficient use.  Traveling by train would be easier and more comfortable for everyone.