The scope of use of the Nanjing Smart Card is public **** transportation, catering, entertainment and so on. The Nanjing Smart Card is a Nanjing city pre-stored value card, the use of the scope of public **** transportation card (Nanjing buses, cabs, ferries, subway, etc.), catering, entertainment, life services, gas, supermarkets, retail and other areas of use, the user can be recharged in the relevant outlets, the consumption of empty cards can also be in the cooperation of the recycling merchants for recycling. Nanjing, referred to as Ning, the capital of Jiangsu Province, is located in the southwest of Jiangsu Province, the lower reaches of the Yangtze River, from latitude 31 ° 14′ north, north to latitude 32 ° 37′ north, from 118 ° 22′ east longitude, east to 119 ° 14′ east longitude, east and west of the largest horizontal distance of about 70 kilometers, the largest north-south longitudinal distance of about 150 kilometers, the municipal plane is long north-south and east-west narrow unfolding, an area of 6587.04 square kilometers.