I am wondering if this is part of the route? Or is it a deliberate? A hint? Or just something else? I found another about 5 miles towards Birmingham from this location as well. I was headed to Lichfield Trent Valley. Pictured is just metres north of Lichfield City.
I'm not sure what it would hint towards if it was a clue, else than maybe a Trackside maintenance mode. Though, let's be honest, that's probably not gonna happen. So maybe it's just a mistake?