Final answer:
A SDT - Split Duty Trip is a scheduling term used in the transportation industry. It refers to a situation where a driver or pilot has a split duty period during their trip.
Step-by-step explanation:
A SDT - Split Duty Trip is a scheduling term in the transportation industry. It refers to a situation where a driver or pilot has a split duty period during their trip. This split duty period is an off-duty period taken by the driver or pilot to rest and comply with regulations.