It appears to me that the train is entering a ”goods loop” and there is another loop terminating closest to the camera. There also appears to be another line to the left of the signal. A study of OS maps is called for.
regards
Mike
Yes, it looks like the train is actually entering a loop, and there’s another track to the right.
according to the oracle that is Google AI, the GW installed their mileposts on the down side, (refers to SRS, whom I believe) and they measured from the Eastern boundary of Padd.
so we have a pair of goods loops in WR territory with a further line (siding?) on the down side, and the trap on the up line ends in a stub rather than the ballast. And it’s 72.5 or 172.5 miles from PDN.