neroden
Engineer
It is really hard to do a timetable that serves all possible purposes for all possible users. As @neroden had pointed out, the most useful thing about a PDF/printable timetable is that it gives a particular view that helps in understanding what routes are possible. To achieve these absolutely precise times are not necessary but the general interlinkages is what matter with a sense of possible connections. Armed with that one can then go and verify the exact times on the specific dates of interest.
Yes! This is why the Jefferson Lines bus map is almost, but not quite, an adequate substitute. (Because it doesn't show which connections work vs. which are overnight, nor does it show where you can go out and back on a day trip, etc.)
To aid this, at most non-daily services need to be identified, but one can do without occasional variations in times. Those will get sorted out when verifying a potential itinerary. My interest is in understanding how to present the data for this purpose and so absolute precision in presented times on a daily basis is not part of that agenda.
Yep. Honestly, I remember legends like "TIMES MAY VARY DUE TO TRACKWORK -- ALWAYS CHECK WHEN BUYING TICKETS" on commuter rail timetables since the 1980s. Which is fine. The point is to get a sense of what routings are possible, and how & where you have to change trains/buses to do it.
There are rumors that the mythical bus between Ithaca and Syracuse, for which timetables are not published, starts south of Ithaca. I have no idea how I'd find out where it actually starts, because there's no timetable. Effectively, it doesn't exist south of Ithaca even once you've discovered that it runs from Ithaca to Syracuse.
This is anti-marketing: it's driving customers away. The core element of marketing is making people aware that your product is an option, and that's what timetables do.
Companies pay hundreds of millions for marketing, but brainless idiots who are running bus companies into the ground won't spend a couple of hundred thousand per year to publish the cheapest, most effective piece of marketing possible. I hate to see Amtrak go the same way, and if it does, I will campaign to have Amtrak dismembered and transferred to state governments which may have some degree of basic competence.
Because of the dynamic nature of actual schedules these days, a printed time table will never be the last authoritative source of information for finalizing plans. Even the printed employee timetables are routinely over-ridden by date and time window specific orders.