Interesting concept, but there is lots of room for improvement. First of, it's not really a game: there is no challenge, no agency for the player, no failstate, nothing that could be deserving of the word gameplay. The minimalist design which you intend to spark imagination would work a lot better if there was something to intrigue the player to fill in with his imagination in the first place. That doesn't necessarily mean abandoning the mundanity of what's simulated here, but as it is now, it is a minimalist representation of mundane life at its worst: a trainride the player has no other reason to ride than that someone else chose to put him in that situation, with no options of escape, rebellion or even subversion. All he can do is conform to take the route someone else designed for him and watch the trivialities that occur along the route. And the game doesn't even make its inescapable mundanity a point!