Hong Kong Air Cargo Terminals Limited (HACTL) has signed a Memorandum of Understanding (MOU) with Westwell Holdings (Hong Kong) to introduce Autonomous Electric Tractors (AETs) to its ramp operations this year. HACTL aims to develop autonomous vehicles which, in addition to the relatively simple task of towing cargo dollies, automatically couple and uncouple the dollies, and adjust to their differing specifications, according to the press release from HACTL. Once testing and final on-site tuning and mapping to HACTL’s specific requirements are completed, the AETs will be integrated into HACTL’s current driver-controlled tractor fleet, and will initially tow loaded import ULDs on a 1km route between the outdoor ULD staging area, and the main terminal ULD system intake deck of SuperTerminal 1. AETs will be used on longer and more complex routes in due course. Safety is the major consideration in operating the new vehicles. Each AET is equipped with a highly accurate GNSS system and uses multiple HD cameras and LiDAR sensors to detect all objects and avoid collisions. The AETs have similar capabilities to the current diesel-powered tractor fleet, but operational speeds will be restricted to 8kph as an additional safety measure, the release added.