start        @ 4 up
departure(s) @ 5 up
arrival(s)   @ 5 up going to 9
departure(s) @ 9 up
arrival(s)   @ 5 down going to 2
departure(s) @ 3 down
departure(s) @ 2 down
arrival(s)   @ 1 up going to 10
departure(s) @ 10 up