GlossaryEN1 min readUpdated: Jun 26, 2026
Truck Appointment System
A Truck Appointment System (TAS) controls vehicle flow at ports, terminals, warehouses, and distribution centers by requiring carriers to pre-book arrival time slots through a web-based platform or system interface.
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Source: https://www.freightwaves.com/news/what-is-a-truck-appointment-system
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Definition & Explanation
A Truck Appointment System (TAS) controls vehicle flow at ports, terminals, warehouses, and distribution centers by requiring carriers to pre-book arrival time slots through a web-based platform or system interface. Trucks with a confirmed booking gain priority access during their assigned window, while unscheduled arrivals face delays or may be turned away. This spreads traffic evenly throughout the day, prevents gate congestion peaks, and allows terminal operators to align dock staff and handling equipment with actual demand. TAS is now standard practice at major container terminals and is increasingly adopted by inland freight hubs and large warehouses. Carriers are responsible for adhering to their booked slot; late arrivals may incur demurrage-style waiting fees or forfeit their appointment.
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