Hong Kong ticket gates modernised ahead of contactless launch
https://www.railwaygazette.com/technology-data-and-business/hong-kong-ticket-gates-modernised-ahead-of-contactless-launch/63769.article
While ticketing system is becoming more multi-functional one around the world in 2020s, installation of the transportation cards was common in 2000s and 2010s.
So, transportation operators should learn more about what kind of fare systems they should install in the future.
