Hi - I'm a former Clevelander who was just a little too young to see the Cleveland Union Terminal under anything like normal operation. I didn't start actively photographing until late 1971. I now live in northern California but still maintain a strong interest in Cleveland and northern Ohio railroad (former) operations. I have done a fair amount of study of Erie, NYC and B&O operations right around the time when Amtrak was about to take over. I have two reels of B&W 16mm motion picture film taken from the cab of the Erie-Lackawanna E-8 engine from Cleveland to Youngstown, in February of 1973, and a lot of photos of the dismantling of the coach yard and some of the surrounding rail structures, and a few trains. I also used to spend evenings once in a while in the B&O Ravenna (RN?) tower, which is no longer in use. This is where former PRR eastbound trains would travel over the B&O main and take the connection to join the PRR main to Cleveland coming up from Alliance. This was the same connection that was formerly used by the LE&P section of the New York Central system that is now (in part) the Cuyahoga valley Scenic railroad.
I don't find any of the "improvements" to the Tower City complex to be helpful - but at least the rapid transit still runs, although limited to 3 tracks instead of the original ten (plus the 22 "steam road" tracks - long gone) which is of limited interest. Unlike Chicago and New York City, the station remains but the tracks are gone.
I know quite a bit about physical operations of the C.U.T. and have a blueprint of the track and signal layout, which I have "repaired" to the best of my guesswork to show the complete arrangement as it was.