Usually, there is no equivalent of air traffic control at sea. Some busy areas operate 'traffic separation schemes,' but mostly, ships are treated like cars on roads where there are rules and codes of behavior, and successful, accident-free outcomes depend on everyone respecting them. As on roads, this doesn't always work.

I find Suez astonishing for the first hour. It is a ditch in a desert, but a stunning one. The sensation of being hemmed in by huge ships, moving at a stately pace through a man-made waterway, is extraordinary.

Ships are obliged to take on harbor or river pilots - who provide specialized local navigation - when they approach a port, but in the canal, a Suez crew is also obligatory. The crew members are there in case the ship needs to be moored during the canal transit, but this rarely happens.

Rose George Quotes