A transit-card only transfer station is a station where two lines meet, but unlike a physical interchange, there is no direct pathway between them within the paid fare area. Passengers wishing to interchange must exit the paid fare area for the first line, walk a short distance on the street, and re-enter the paid fare area for the second line. Since June 1, 2008, passengers interchanging using a Shanghai public transport card have their trip regarded as one journey and the distance will be accumulated for fare calculation. Passengers must exit a station and re-enter another within 30 minutes using the same Shanghai public transport card. Those using single-ride tickets cannot use virtual transfers and must purchase a new ticket.