Question: is purley in oyster zone?
Answer: Purley railway station is in the London Borough of Croydon on the Brighton Main Line, 13 miles 29 chains (21.50 km) measured from London Bridge (15 miles 13 chains (24.40 km) from Charing Cross), in Travelcard Zone 6. It is a junction, with branches to Caterham and Tattenham Corner.