Thats normally a reroute I do when I'm playing Trainz 12. Once I had a glitched train at 23rd St on the that stopped all of the AI's along 6th Avenue, so what I did was resign all the trains into trains, and then set them express, then sent up all the trains via 8th Avenue after West 8th St. Had some go up to 168th St, 207th St or Bedford Park to not clog up the tubes.