The harbour
The Index rates Shanghai a large river harbour. It lists yards for major repairs and a dry dock there. Its entrance channel is at least 7.9 m deep. Shanghai, 4 km away, is one of the major ports the map marks.
Harbours within 10 km
- Shanghai6 km from the centreLarge harbour · counted on the page for Shanghai
What the live map can see
In 24 hours of AIS recorded Oct 12 – 19, the map heard no ship within 10 km of Shanghai: the receivers TAKIP draws on don’t reach here, so its ships won’t show.
Good to know
- NGA’s World Port Index rates a harbour by its area, facilities and wharf space when it was last surveyed, not by its traffic, so a busy terminal can be rated small. Where it doesn’t know about a facility it says so, and only what it marks as there is listed here.
- AIS is heard by receivers on shore, so coverage follows where they are: ships far out at sea, or off coasts without one, don’t show. Warships and some others switch it off, and a ship’s type and destination are typed in by its crew.
- Harbours from NGA’s World Port Index (Pub. 150), downloaded on Oct 19, 2026. The major ports and chokepoints are the map’s own reference list.
How the layers work, where their data comes from and what they can’t tell you: Live ship tracker, Shipping chokepoints