The fact that this isn't obvious, and that instead the means by which that product is delivered is considered more important than the actual arrival of passengers, is very telling.
This is a common issue in the technology world - too often, the actual end result is overlooked, for the sake of the means by which that product is produced. Your special organisational tricks mean nothing if the customer is left at the station, standing in the rain, hundreds of kilometres from home.
The timetable doesn't get anyone home. The trains do. The timetable just describes the intent - it is a requirement which describes a service, not a product. The train is required to show up at that time, and by publishing it the train company is establishing agreement with its customers in an open and fair manner.
A product is something which is produced, and the word 'product' describes, after the fact, that which was produced. A service is an act which is performed in support of producing something. Timetables are a service which are subservient to the fact of actually producing the desired result. I do not go to the train station to look at the services being promised delivery; I go to engage in the act of using that service, to gain my desired product: my ass at home, making a cuppa.
Disclaimer: if you've taken a train in any one of 38 different countries around the world, chances are your safety has been being predicted by SIL4-level online tests I've written for that purpose ..