So I've been in the city for a little over 6 months. I've taken some random shots of some interesting things over that time that I have questions on.
They are seen here: https://photos.app.goo.gl/QTeduRUyebd6wH849
I have some questions on some of the photos.
The 1st photo...there is a box in between the tracks. I'm assuming there is some sort of sensor on the trains that can read that little square and know that they're stopping in a good spot?
The 2nd photo is of an odd red/white light (green signal is in the distance)...what is that signal for? I've seen them in some other stations, but can't quite figure out what it means.
The 3rd photo has a few things in yellow. One of them is on the third rail cover....why is that square yellow? Also, what is the yellow pipe for? I get why its yellow, but not sure if its an electrical conduit or some sort of strengthening rod that I don't see hardly anywhere else.
The 4th image...what am I looking at? There is a handle that looks like it goes to the box on the ground...but I can't figure out what thats all for. Does it cut the power to the third rail?
The 8th image shows a crumbling stairway...whats in the locked off door? Signal equipment? Seems like a crazy place to put something.
The 9th image...so there are two drains there..one is in the ground and one is at the height of the ties? Why is it so high? Also interesting is that there are two rails together on the platform side. I don't see this hardly anywhere else. Is it because there is a slight curve on that part of the platform?
The work train...what is that flatcar typically used for? The yellowbird RD421?
The photo after the worktrain with the orange rail joiner...why is it orange? What are those encapsulated wires between the tracks for?
The photo with the signal and the box and the yellow handle. What does the yellow handle do? Cause a manual red signal?
The 42nd street photo with the pipe in the ceiling...there was water dripping down that pipe into the middle of the subway tracks (DT side, closer to 42nd). Where the heck is that water coming from and why? lol.
I'm amazed that the ties stay in the concrete slots so well.