Intuitively, I believe the answer to this question is a resounding "yes, you can do this", but I'm hoping for a confirmation.
If I purchase an on-line, pre-validated (valid for 4 hrs from the time of the specified train), regional train ticket in advance (for convenience), and then I choose to board that train at a station that is en route, instead of my specified station, is there any problem with doing that?
I know it sounds daft, but since I will be arriving in Civitavecchia via cruise ship, for a 1-day port-of-call, I want to minimize my standing in line at the train station (with the hoards of other cruise passengers) to go into Rome and back. I intend to use a regional train (not IC), and I don't want to line up at the window (or a shop) to buy a BIRG ticket. It appears that on the Trenitalia site I can buy a pre-validated ticket for the regional trains (good for 4 hrs from the time of the train first specified)-- so all I would have to do is go to the station, figure out which track the next train will be on, and board it (with my home-printed ticket and ID).
However, we're not sure if we are going to get off at S Pietro, Trastevere, or Ostiense... and likewise, we're not sure which Rome station we will return from... it will depend on our walking route, the weather, etc. We've been to Rome a few times, and used the metro and train, so we know what our options are in this regard.
So... my QUESTION is... if I pre-purchase my return tickets to/from Civitavecchia - Termini, is there any problem with 1) jumping off the train at an earlier station (probably S Pietro), and 2) actually BOARDING the train at a later, en route station... i.e. Ostiense as opposed to Termini.
I cannot fathom why it WOULD be a problem, as when/if they check your ticket on board they won't have known where you boarded, and we'll have essentially over-paid for our trips, but I just thought I'd make sure... just in case.
Thanks very much!
Cheers,
Vivian
Kingston, Ontario, Canada -- where we do NOT have regional train service