I have reviewed this on GSV and there appears to be no option but to reverse once you get to this traffic light in a car. There is a 'left turn only' sign by Bespoke Finishes just before the bus stop about 400m before the junction visible 4 seconds into your video. Was that illuminated? It doesn't look as though the light was working on your video. An expert will be along soon, but I suggest that might be a significant point to note.