The application allows you to choose the best route in the metro city of Changsha.

Features of the app:
- Search for metro stations by name
- Location of metro stations by geographic coordinates
- Visual display of the optimal route

Lines:
- Line 1 (red): Kaifu District Government ↔ Shangshuangtang
- Line 2 (light blue): West Meixi Lake ↔ Guangda
- Line 3 (yellow-green): Shantang ↔ Guangsheng
- Line 4 (purple): Guanziling ↔ Dujiaping
- Line 5 (yellow): Maozhutang ↔ Shuiduhe