1. Transport guides must specify applicable cities and dates. Route adjustments and fare changes are frequent; old posts should be reviewed every six months.
2. Money-saving ride-hailing tips are welcome, but private unlicensed car contacts or unverified transfer service ads are prohibited.
3. Use official metro maps or open-source map data; avoid third-party commercial images with watermarks.
4. Help requests must include: origin, destination, time constraints, group size, and luggage volume for optimal routing advice.
