Tugboat, or tug, is a boat used to manoeuvre, primarily by towing or pushing other vessels in harbours, over the open sea or through rivers and canals. They are also used to tow barges, disabled ships, or other equipment like towboats. A tugboat can also refer to a recreational boat that resembles a tug in shape but is not capable of or designed for towing. Tugboats are highly maneuverable due to their propulsion units.

Tugger automatic guided vehicle is a powered and wheel based transport vehicle. It is capable of pulling one or more non-powered vehicles (with loads) behind it in a train. Automatic guided vehicle operates under computer control with out the need for human operators or drivers. It is also known as a self-guided vehicle, is an unmanned, computer-controlled mobile transport unit that is powered by a battery or an electric motor. AGVs are programmed to drive to specific points and perform designated functions. It has following features man-abroad design, off-the-shelf components, graphical touch screen, manual and automatic vehicle dispatch. It is used for load transferring, pallet loading/unloading and tugging/towing.