I would assume it's done this way so that way when this happens as it has here, pedestrians still have a chance of getting a walk symbol.. otherwise, depending on how the intersection is programmed, they may never get a walk symbol as they have no button to push, And the controller would have no way to know know that the button is no longer available.

I've been watching his channel for a couple years now and I work in the industry as an electrical engineer/PCB designer. Love getting to watch our equipment that I helped design being used in the field. FYI, If you're anywhere down near Plano/Greenville Texas we have several openings for engineers and other positions as well.

Some intersections are.. but not all. It would be up to the agency responsible for the intersection to whether they have the infrastructure in place to do that, and choose to pay to have that done.

A lot of american road design is bad, including old highways and parkways that weren't updated when their speed limits were raised, and the unnecessary widenings when roads get updated

It's an interesting device, coming from a software developer standpoint. The controller drives the signal lamps based on inputs of who's waiting for what, or timers, or both. The conflict monitor literally monitors the voltages on the lamps themselves, and compares it to a graph of what's allowed at the intersection, and if it determines that there is a "conflict", it turns the entire cabinet into "signal flashing" mode. ie it prevents stuff like a four way green light.

You assume this particular cabinet has any kind of internet connection in the first place.. doesn't appear so.

@@napsterbater I saw some yellow/green lights above cabling, which is indicative to Tx/Rx transmissions, _usually_ associated with RJ45 ethernet jacks, but doesn't have to be. Most modern controllers _are_ ethernet equipped.

@jbsimmons54 the flashing yellow you see above the green cable at the first intersection on the conflict detector, is referencing data transmission and receiving to and from the sdlc connection to/from the traffic controller. So they have communication with each other. It's not ethernet in this particular case. You will also see some lights and ethernet cables on the video detection controller, but those are mainly connections to the cameras themselves and it's showing link and data for them, and it kind of does look like it also has a data activity light for the sdlc connection. It also has back to both the conflict detector and controller. Now again there are some intersections depending on the area and the agency involved and everything that do have actual internet connections but the ones shown here do not.

Time and date important because if you gone then it have a problem, if you not have right date then it hard to tell it was new or old.