Trailer Pool
Also known as: Drop Trailer Program, Pool Trailers, Trailer Yard
Definition
A trailer pool is a collection of trailers stationed at a shipper’s or receiver’s facility. These trailers can be preloaded or unloaded without the driver present, enabling “drop and hook” operations where drivers swap trailers rather than waiting during live loading.
How Trailer Pools Work
- Drop - Driver drops empty trailer at facility
- Hook - Driver hooks to pre-loaded trailer
- Load/Unload - Facility works trailer without driver
- Repeat - Next driver repeats process
Benefits of Trailer Pools
For Shippers
- Flexible loading schedules
- No pressure from waiting drivers
- Extended loading windows
- Reduced detention charges
For Carriers
- Improved driver utilization
- No detention time
- More loads per day
- Better driver satisfaction
For Facilities
- Level workload throughout day
- Work trailers during slow periods
- Reduce dock congestion
- Night shift loading possible
Trailer Pool Costs
| Cost Element | Who Pays |
|---|---|
| Trailer rental/usage | Often shipper or shared |
| Yard space | Facility |
| Trailer movement | Facility (yard jockey) |
| Insurance | Typically shipper |
| Maintenance | Carrier or rental company |
Trailer Pool Considerations
Facility Requirements
- Adequate yard space
- Yard management capability
- Drop trailer equipment (yard tractors)
- Trailer tracking system
Volume Threshold
- Typically needs 5+ trailers/day to justify
- Consistent volume patterns
- Carrier willing to participate
Trailer Pool Agreements
Typical provisions:
- Number of trailers provided
- Per-diem or usage fees
- Trailer turnaround time
- Damage responsibility
- Minimum volume commitments
Managing Trailer Pools
- Track trailer locations and status
- Monitor turnaround times
- Ensure timely returns to carriers
- Maintain trailer condition
- Balance pool size to volume
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