I can also report massive on Chicago Line re-signaling efforts are pretty much sweeping up everything between South Bend and Chicago including the former BEND interlocking itself, which itself was re-signaled back in the mid 90's to replace the old BEND tower. Multiple new interlockings are in service along with a lot of layout changes (including segments of third track). The former PC-style I-beam gantries at CP-501 and CP-502 have been replaced and older NYC era gantries will soon follow.
However the late model NYC cantilever just east of South Bend did not yet appear to be marked to replacement.
On CSX some ominous signs are appearing around Akron, the last bastion of CPLs on the old B&O Main Line.
CSX resignaling is now invading the Atlanta area on both their searchlight and elephant ear territory.
While on the former SCL route to Alabama, the re-signaling has reached the GA/AL state line.
For another piece of good news, here is a fine example of the robustness (wind resistance?) of newer style Darth Vader signals that replaced the lower profile MC style searchlights on the former NYC Main Line.
In hindsight, 2016 was a pretty rotten year with a number of tower closures and major re-signaling projects, but compared to other events and past years, it was kind of tame (and I was able to get out and document more stuff compared to 2015).