The term HGTS is composed of three abbreviations: ELEVS (5 letters), ALTS (4 letters). ELEVS stands for Elevator Service Technician, which is a job that involves the maintenance and repair of elevators. ALTS stands for Aircraft Line Technician Supervisor, which is a job that involves supervising aircraft line technicians in their daily tasks. Together, these two abbreviations form the acronym HGTS, which stands for Heavy Goods Transportation Services, a job that involves the transportation of heavy goods.