In "bi-directional" signaled territory (261 territory here in NORAC land) the signals for teh other direction don't necessarily have to light up. They should be lit at interlockings and Controlled Points, but automatic signals, signal 959 in that BN pic for example, (generally signals with number plates are automatics, while Home signals or controlled signals do not have number plates) would be an automatic signal, for the other direction, and wouldn't have to be lit up, because the signals know that the dispatcher has set "the direction of traffic" in the other direction - what that means is the signals need to know which way the train is going to be going, so they know to show clear or whatever, and not all red signals (or stop signals, stop and proceed, or restricted proceed)
It saves on lightbulbs and electricity!!!
On the RR, "believe nothing you hear and only half of what you see"
John, aka "JTGSHU" passed away on August 26, 2013. We honor his memory and his devotion to railroading at railroad.net.