FWIW, in kingston, there is only about 9000 feet between CP 90 and Flatbush avenue, and any train exceeding 8800 feet generally will not be held there. Don't let the length odf the sidings fool you. There are "layback points" that the trains cannot pass unless so ordered at virtually all the sidings. There are layback points at Ravenna, Coxsackie, Alsen, Kingston, Newbugh, Havestraw, Nyack and Teaneck. There is a crossing in the middle of the Milton siding, but it is unused these days and there haven't been any complaints when it does get blocked. It leasds to a small dock that doesn't see use any more, at least from the road side of the thing. Commonly referred to as the winery crossing, as there is a Kedem winery at that location. But getting back on topic, an 11,000 foot train is not all that uncommon. Q156, 164, 268 and even the 433 and 404 are usually good candidates to meet that length if not come awfully close.
I know I'm getting old... My insurance company sent me only half a calendar this year!