Yard management is the control of every truck, trailer and container between the gate and the dock door, and it works only as well as the data about what is in the yard and when it arrived. Most of that data is created at the gate, by a person typing or a camera reading, which is why cameras have become a practical source for it. At a terminal, Argu’s container OCR for ports reads the container ID, truck plate and vessel name from one camera pass and streams them into a single table.
Key takeaways
- The American Transportation Research Institute reported that drivers were detained in 39.3 percent of all stops in 2023, at an estimated $3.6 billion in direct costs and $11.5 billion in lost productivity.
- Refrigerated trailer drivers were detained most often in the same study, at 56.2 percent of stops.
- A container ID under ISO 6346 has 11 characters: a three-letter owner code, one category letter, a six-digit serial number and a check digit.
- A yard has four moments where data is created: gate in, parking or staging, dock, and gate out. Cameras can supply the gate and yard moments without extra scanning staff.
- Argu’s container OCR reads the container ID, truck plate and vessel name in one pass from the gate camera already covering the lane.
What Is Yard Management?
Yard management is the planning and tracking of trailers, containers and trucks on the property around a warehouse, distribution center or terminal. It answers four everyday questions: who has arrived, where is each unit, where does it need to go next, and when did it leave. Software called a yard management system, or YMS, usually holds the answers, and it depends on accurate check-in and location data.
The gap it fills is real. Transportation software tends to lose sight of a load at the gate, and warehouse software picks it up at the dock door. The yard in between is where trailers wait, get misplaced or sit longer than planned.
Why Does Yard Management Matter?
Yard management matters because time lost in the yard is time paid for twice, once by the driver and once by the facility. The American Transportation Research Institute’s 2024 detention study found that drivers were detained in 39.3 percent of all stops in 2023. It put the cost at $3.6 billion in direct expenses and $11.5 billion in lost productivity.
Detention happens for many reasons, and not all of them sit in the yard. Still, a yard that cannot say which trailer is where, or which gate pass is still open, adds delay to every one of them.
What Data Does a Yard Need at the Gate?
A yard needs a reliable record of each arrival: the carrier, the truck, the trailer or container, and the time. Collecting it by hand means a guard keys in each field, and errors enter at the first step. A camera can read the same fields as the vehicle passes.
| Stage | Question to answer | What a camera can supply |
|---|---|---|
| Gate in | Who has arrived, and are they expected? | Truck plate, container ID, time stamp |
| Staging or parking | Where is each trailer or container right now? | Vehicle presence and dwell time in a zone |
| Dock | Which door is in use, and for how long? | Vehicle at door, start and end of loading |
| Gate out | Did the right unit leave with the right paperwork? | Exit plate and container ID matched to the entry record |
Container IDs follow a strict format
Container numbers follow ISO 6346, an 11-character code made of a three-letter owner code, one category letter, a six-digit serial number and a single check digit. The check digit lets software test whether a read is valid, which is one reason container OCR can be trusted more than a hand-typed number.
How Do Cameras Support Yard Management?
Cameras support yard management by turning the gate and the yard into data sources. A plate reader and container reader identify each vehicle on arrival, and analytics watch the yard for what a person cannot watch continuously.
One pass instead of three checks
A terminal gate typically needs three checks: the container ID, the truck plate and the vessel. Argu’s container OCR reads all three from the same camera feed and writes them into one table per gate pass, so the operator does not reconcile three separate logs. The agent is built for a truck that is not stopping for long, reading as the vehicle moves through instead of making it idle at a checkpoint.
Plates and vehicle context
Plate reading is only the first step. Argu’s LPR cameras capture vehicle color, make and a visible fleet logo with the plate, so a dirty or partial plate does not end identification. The same vehicle can be tracked across several gates and tagged as authorized or as an alert. If you are new to the term, see what is ANPR.
Watching the yard itself
The areas between gate and dock are where unexpected things happen: a person walking where vehicles move, a vehicle left in a fire lane, smoke in a corner of a storage area. Argu’s fire and smoke detection and perimeter security agents run on the yard cameras already installed. For a related setting, see our guide to parking lot surveillance and the wider port security approach.
What Does a Camera Not Replace in a Yard System?
A camera system does not replace a yard management system. A YMS assigns doors, schedules appointments and holds the business rules. Cameras provide trustworthy inputs: the identity of what arrived, a time stamp and an event record that can be shown if a damage claim or dispute comes up. Image quality also depends on lighting, camera angle and vehicle speed, so each lane needs testing before it is trusted.
Argu connects over standard RTSP or ONVIF Profile S/T/G streams at 1080p to 4K and 15 to 30 frames per second, so the first step is usually reading what the lane cameras can already deliver. How RTSP works is covered in our guide to the RTSP camera.
Frequently Asked Questions
What is yard management?
Yard management is the tracking and direction of trucks, trailers and containers on the property around a warehouse or terminal. It covers gate check-in, parking and staging, dock assignment and gate out.
What is a yard management system?
A yard management system is software that records where each trailer or container is and what it needs to do next. It depends on accurate data from the gate and the yard, which can come from staff, scanners or cameras.
How can cameras help with yard management?
Cameras can read truck plates and container IDs at the gate, record dwell time in zones and watch the yard for safety and security events. This replaces manual keying and gives each gate pass a time-stamped record.
What is a container ID made of?
An ISO 6346 container ID has 11 characters: a three-letter owner code, one category letter, a six-digit serial number and a check digit.
Does yard automation need new cameras?
Usually not. Argu reads standard RTSP or ONVIF streams from gate cameras already covering the lane, at 1080p to 4K and 15 to 30 frames per second. Each lane should be tested for angle, lighting and vehicle speed.
How much does driver detention cost?
The American Transportation Research Institute estimated $3.6 billion in direct costs and $11.5 billion in lost productivity from driver detention in 2023, and reported detention at 39.3 percent of stops.
The gate is where a yard’s data starts. Argu reads what arrives and lets your team describe what to watch for in the yard. Talk to Argu about your gate and yard cameras.
Last updated: October 2026
