On item:: The Massachusetts Port Authority's (Massport's) cargo handling operation relies on modern containerized technology. Gantry cranes lift 20 foot or 40 foot standardized metal boxes from the ship's deck and load them onto truck chassis for efficient delivery. Massport's maritime termianls are conveniently located with access to interstate highways serving the six-state New England region, the mid-Atlantic states and the Midwest. Boston Port/1740.