Concord BART station

[DET63]

Link to larger version.

I believe the blue signs are mileage, line and track indicators. I'm not sure what the yellow sign with the D on it is: perhaps it's to identify the switch number.

 

[AlanB]

It could be the switch; it could also a signal chaining number.

 

[PRR 60]

I believe the yellow sign is the interlocking/turnout designator. In this case Interlocking C57, turnout D.

 

[DET63]

It looks like there's a post for a similar sign on the other track, but the sign is no longer there. It was either stolen, removed, or fell down, and not replaced.

 

[PRR 60]

This is a timely posting. The interlocking shown on the photo in this thread is where today's (3/13) BART derailment took place.

 

[DET63]

So it appears.

There are BART delays this morning, but they appear to be in the Transbay Tube or the San Francisco subway, and thus separate from the derailment.