How AIS Works - Operation of AIS

Within seconds after the AIS MOB personal locator beacon easyONE-DSC is submerged into the water, the unit activates automatically and starts trasnmitting AIS and DSC alerts into vicinity of up to 7 nauticval miles.
You can also see the bright and strong red LED flare flashing which increases visibility of the victim in darkness drastically.
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The term Automatic Identification System (AIS) refers to a radio system that improves the safety and guidance of vessel traffic by exchanging navigation and other vessel data.

How LUXSPACE uses AIS messages to monitor worldwide shipping traffic

Information video: How to become a Marine Pilot.

The role of a Tug Master undertaking harbour towage activities is a very specific one. He/she has to, alone or in cooperation with other Tug Masters, assist a ship in a safe and efficient way using his/her tug to the best of its qualities. 

Operators and supervisors of the operations center (atalaia) of Praticagem da Barra do Rio Grande participated in an update course in online and face-to-face mode. They had classes on nautical charts, electronic charts (ECDIS), radars, portable pilot units (portable electronic navigation equipment) and technical English. "There is no good operation without recurrent training with good tools", says pilotage operational director, practical Bernardo Ramos

Blog: https://www.merrimacins.com/understanding-and-preventing-tug-barge-risks/ Understanding and Preventing Tug & Barge Risks The maritime industry relies on tugboats and barges for a wide range of applications. Tugs are used to pilot vessels into and out of ports, while barges are used to transport bulk materials. The relationship between tugs and barges is critical, as most barges are not self-propelled and must rely on the skilled operation of a tug or tugs for propulsion. At Merrimac...

Project results in detail. Efficient port flow using the Port Activity App in the ports of Gävle and Rauma. Sharing time stamps making planning easier for all involved actors. Efficient ship Flow by using a Route distribution service helping pilots better plan meeting points in narrow fairways, saving some fuel but more importantly increasing safety.

Tug power has increased considerably over recent decades. Today, some ship handling tugs have a bollard pull of more than 100 tons. In addition, high tug power can be installed in ever smaller compact hulls.

UK's Marine Accident Investigation Branch has published grounding and recovery of a container feeder vessel and a tug in the approaches to the Humber Estuary in storm force conditions on 15 December 2018.