Yes and No........PATH has it's own signal system somewhat different from NYC Subways. There used to be a website with a good chart of all the aspects. Don't know if it's still around.
On PATH, simple red, yellow, green mean the same as NYC. However PATH's aspect for station-timers and grade-timers is a double-yellow. You can watch those signals clear as the train approaches at the correct speed.
PATH also has 3-headed signals at diverging points. If the red is on top it's a
left diverging route. Red on the bottom is a
right diverging route. Unlike NYC where any diverging route is shown by a yellow on the bottom head.
Simple, right?