Rural buses in Seongju, North Gyeongsang, all run unified as '0'
This is because most elderly passengers cannot read, making it hard for them to tell multiple numbers apart. They ride by reading the destination written on the front of the bus, by recognizing the driver's face as in the past, or by memorizing the route itself.
One bus driver explains that he unified all rural buses under the number zero because the elderly passengers don't know the numbers well.


