The trigger was the IC-only corridor In the beginning, there used to be only a combination of “paper tickets” and “manned corridors”. With the advent of automatic ticket checkers, “paper tickets” were divided into “magnetic tickets” and “non-magnetic tickets” that were compatible with automatic ticket checkers. However, this too is still easy to understand, since “tickets with white paper backs are manned passageways. Then came the introduction of the transportation system IC card. At first, all automatic ticket gates were generally compatible with both paper tickets (magnetic tickets) and IC cards. However, as the use of transit system IC cards increased, “IC-only corridors” appeared. From the standpoint of maintaining and managing the automatic ticket checkers, this is not unreasonable. Automatic ticket checkers allow tickets to be inserted regardless of their orientation and regardless of whether they are inside or outside the ticket slot. In addition, multiple tickets can be inserted at the same time. To achieve this, the machine incorporates such mechanisms as “inverting the turned-out coupons,” “using a thickness sensor to detect when multiple coupons are fed in, feeding them out one by one in sequence,” and “stacking them again before the ejection port. This complex mechanism must operate quickly and reliably. If you have ever encountered a situation where a station attendant opens the cover of an automatic ticket checker to access the inside of the machine when a “ticket jam” sometimes occurs, you will understand how complex mechanisms are packed inside the automatic ticket checker. This increases the manufacturing cost of the automatic ticket checker, and also leads to the burden of inspection and maintenance management. In this respect, it is easy to talk about if it is an IC card-only machine. There are no moving parts in the reader. A gate is necessary if the machine is not a simple type, but that is the only movable part. Both manufacturing costs and the burden of maintenance and management are drastically reduced. Therefore, the number of IC card-only corridors is increasing.
Diversification of Ticket Types Although that would have been enough to get the story out of the way, the recent increase in the number of physical media for “tickets” has made the story even more complicated. First, the so-called credit card touch payment. Second, QR boarding passes. The touch payment is read wirelessly, just like a transportation IC card, but the QR ticket is read optically, so it requires a special reading device. The newest means of payment is the “face recognition ticket gate. This requires a dedicated mechanism for facial recognition, and the structure of the ticket gate has completely changed. As the types of tickets become more diverse, it is no longer realistic to use a single automatic ticket checker for all types of tickets. As a result of accommodating four types of tickets, “magnetic tickets,” “IC cards,” “touch payment,” and “QR,” a chimeric automatic ticket checker has emerged, with various additional devices. However, this seems to be the limit. If such additional devices were to be added to all ticket checkers at all stations, the cost would be too great. Therefore, it was unavoidable to have “automatic ticket checkers that can be used only for specific ticket types. At stations with multiple passages, passengers must choose the passageway they will pass through according to the type of ticket they are using. If you make a mistake, you will have to make a U-turn, saying, “Oh, I can’t go here,” and you will be stung by the stares of those following behind you.
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