Representative Risk Analysis Projects

REGULATORY ASSESSMENT

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  • HEC performed risk assessments for regulatory approval of use of tugs of opportunity for traffic in the Strait of Juan de Fuca. HEC provided full vessel traffic simulations, drift grounding modeling, and oil spill amount predictions. Additionally, cost-benefit analyses were performed for alternative tug escort schemes.

RISK REDUCTION

  • HEC has conducted multiple studies aimed at estimating the effectiveness of various methods of reducing the risk of vessel grounding. These have included the reduction in risk associated with utilizing either rescue or escort tugs for vessel traffic and the use of fully redundant steering and power plant systems.

QUANTITATIVE RISK ANALYSIS (QRA)

HEC has performed in-depth risk analysis including formal QRA’s for potential new import, export, and transshipment terminals.

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FOR NEW CONTAINER TERMINAL

Model traffic changes using existing AIS data

Estimate collision, grounding, and spill frequencies

Determine maximum credible spill amounts

Identify higher incident risk areas

FOR NEW LNG LIQUEFACTION & EXPORT TERMINAL

Conduct a HAZID Workshop

Prepare simulations of new traffic routes

Estimate collision and grounding frequencies

Estimate spill (LNG and Oil) frequency

Evaluate effectiveness of risk mitigations

Contribute to TERMPOL document

Conduct public outreach including local stakeholders and aboriginal groups

FOR OIL TRANS SHIPMENT IN A REMOTE LOCATION

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Conduct a HAZID Workshop

Simulate new traffic routes

Estimate accident frequency using AIS data and route simulation

Compare drift grounding scenarios for two potential sites

Model spill probability