The Terminal

What's going on while a tram reaches its terminal? The driver simply get off and drive on the other side of it, and the tram goes back to the opposite terminal of the line.
The tram goes always on the same line, but everything changes. Different passengers on board every journey; tram officers inspecting now and then, taking off different people; the drivers call out the name of the stops and give a little introduction sometimes; the tram just go through a stop where nobody's gonna go up or down with a "ding"; the tram itself gets older; different ads on board promoting different stuffs.
Just like time. Time goes plain on and everything seems to be different. weather turns hot then cold, with thunders or tornadoes or tsunamis; people getting healthy and sick, older then dead; buildings rise and fall, then accumulate and urbanize.