China State Railway Group: Passengers who board without checking in are deemed to have forfeited their seat-use rights; those with special needs may purchase tickets for more people than actually travel

国铁集团：旅客未检票乘车视为不行使席位使用权利，有特殊需求可购买多于实际乘车人数的车票乘车

A public trend signal observed across 1 source.