Sentence:  An unusual sight at the recent Northwestern Lumbermen's Association convention in Minneapolis was the Youngblood Express, a "<WSD>people pod</WSD>" coupled with a 20,000-pound straddle carrier. 
Meaning of the word marked with <WSD> tags:  A bus-like compartment carried by a lift truck, proposed in the late 1950s for transporting people and luggage from the airport terminal to an aircraft.