GCT SWAM – Wind Risk Management for Safer Container Operations
The challenge
GCT Deltaport faces strong, unpredictable winds from the Pacific Ocean, which have historically caused operational delays and safety hazards. Without a precise wind policy, shutdowns were reactive and often ineffective. Empty containers, especially vulnerable to toppling or sliding, posed serious risks to personnel and infrastructure - particularly under the terminal’s new yard planning model, which no longer isolates empties.
The innovation
GCT developed the Site Wind Analysis and Monitor (SWAM), a real-time risk management system that combines:
- Advanced wind forecasting tailored for Deltaport, with 7% higher accuracy than standard sources.
- Dynamic stack analysis using container data from the Terminal Operating System (TOS) to calculate wind resistance for each container at different heights and positions across 16 wind directions.
- Color-coded alerts and a sandbox simulation tool to visualise risk, test container adjustments, and plan safe yard configurations.
SWAM enables proactive decision-making, allowing operations to anticipate shutdowns, reorganise stacks, and notify vessels of potential delays.
How it works
GCT partnered with UBC’s Weather Forecast Research Team to refine wind predictions using multi-model averaging. CPA Engineering developed a tool to assess the stability of over 18,000 containers, factoring in sliding, toppling, and friction data - including the impact of nearby coal dust.
Three ultrasonic anemometers were installed across the yard to feed real-time wind data into the system. SWAM runs every 10 minutes or on demand, using live TOS data to assess container stability and simulate mitigation strategies.
Case study
SWAM has transformed wind risk management at Deltaport. The system accurately predicted a container toppling event during high winds, validating its model and enabling safe shutdowns with no injuries. Real-time alerts and predictive planning have reduced emergency responses and improved coordination across teams.
Historical playback and sandbox testing have enhanced operational readiness, while exception alerts help identify misplaced containers in the yard.
Potential impact
SWAM sets a new standard for wind safety in container terminals. It enables:
- Data-driven shutdowns and stack adjustments
- Improved crew safety and reduced cargo damage
- Enhanced customer service through proactive vessel notifications
- Scalable integration with forecasting and AI technologies
- Date
- 22/07/2025
