Yard management system (YMS)
Software that tracks and manages the movement and location of trailers, trucks, and containers within a warehouse or distribution center yard. A YMS replaces manual yard checks with real-time asset visibility.
Yard check
A manual or automated audit of which trailers and trucks are present in the facility yard and their current status. Manual yard checks are time-consuming and error-prone; Opendock's YMS automates this in real time.
Drop trailer
A trailer left at a facility for loading or unloading at the facility's convenience, rather than with a driver waiting on-site. Drop trailer programs improve facility flexibility but require strong yard visibility to track trailer status.
Live load
A loading or unloading operation performed while the driver remains on-site with their truck. Live loads require tighter appointment scheduling since the driver's time counts toward detention thresholds.
Trailer spotting
The act of moving trailers within a yard to position them at the correct dock door or staging area. Typically performed by a yard spotter vehicle. Efficient spotting is critical for high-volume facilities with drop trailer programs.
Yard spotter (hustler)
A specialized vehicle used to move trailers around a facility yard without a cab-over truck. Also called a yard mule or yard dog. Facilities with large trailer pools rely heavily on spotters to keep dock doors occupied.
Staging area
A designated zone within a yard where trailers or containers are temporarily held before being moved to a dock door. Proper staging management prevents yard congestion and keeps dock turns on schedule.
Dwell time
The total amount of time a truck or trailer spends at a facility from arrival to departure. Excessive dwell time indicates inefficiency and may trigger detention charges. Opendock tracks dwell time automatically for every appointment.
Detention
A fee charged by a carrier when a truck is held at a facility beyond the agreed free time for loading or unloading. Detention is one of the most common friction points between shippers and carriers, and can be reduced with better dock scheduling.
Asset visibility
Real-time awareness of the location and status of all trailers, trucks, and containers within a yard at any given moment. Without asset visibility, facilities rely on manual yard walks that are slow, inaccurate, and labor-intensive.