Rut roh! There is a new pushbutton on the fascia in Glenn Forge. It is now green but when an AC cord underneath the rotary was first plugged in it briefly went from dark to blue before turning green.

Following the cable on the back of the pushbutton I discovered that the other end went inside here to a white 6-pin connector hiding in the left bay shadows.

Later on Saturday afternoon, this disturbing video was recorded by a concerned citizen. Oh, the humanity! What did those lumps of coal ever do to deserve this? Carbon Rights Now!
Link to disturbing videoAnd yes, Rick, if you look at the far right side of the rotary, there is a bare circuit board standing vertically. It is mounted to a white block of styrene plastic. On the PC board is a LIDAR (laser) module to detect cars that are fouling when the operator did not pull back the switcher and cars far enough to avoid creating a problem. So we
do need a laser!
Should an operator manage somehow to create a problem, when the button is red, a quick press cuts motor power. Once the <ahem> problem is resolved, press it again and the barrel returns to home with very low torque, as it auto homes.