166220 passes Didcot North Junction on 10 July 2015 with the 2N12 06:57 Paddington to Oxford First Great Western service. The tracks to the left are the Didcot avoiding lines, those curving to the left in the background lead to Didcot Parkway station, and those curving away to the right lead to Foxhall Junction, and the line to Swindon.