Black Sea Shipping & Port Disruptions Impact Sandbox

Threat & Corridor Controls

Target Port Cluster Odesa

Strike Severity & Terminal Damage High (Large Airstrike)

Minimal Moderate High (Airstrike) Severe

Primary Maritime Corridor

Hypothetical Hull Premium Tier

Baseline Monthly Grain Volume 4.50M Tons

Danube & Overland Bypass Shift 40% Shift

Redirect tonnage via Izmail/Reni barge fleet, Sulina canal convoy, and Polish/Romanian rail interchange.

HYPOTHETICAL DISRUPTION CONTEXT

This scenario assumes port disruption. No live incident feed, verified damage estimate or measured insurance rate supplies these calculations.

Vessel Delay Days 14 Days Anchorage queue & inspection

Export Vol Drop 38.5% -1.73M Tons/mo throughput

War Risk Cost/Voyage $125,000 Panamax 50k DWT ($5M hull)

Authored Cost Impact $54.2M Demurrage & insurance total

Tactical Grid: 46.48°N, 30.73°E • Bosphorus ↔ Greater Odesa

Monthly Cargo Flow Distribution & Corridors 4,500,000 Tons Baseline

Greater Odesa Maritime Terminals (Seaborne) 2,767,500 T (61.5%)

Danube River Barges (Izmail / Reni → Constanța) 1,215,000 T (27.0%)

Overland Rail & Truck Logistics (EU Border Interchanges) 517,500 T (11.5%)

Authored Scenario Ledger

Scenario Bottleneck

Odesa Port Berthing & Terminal Repair

Scenario assumes damaged loading equipment; 45% clearance is an authored narrative fixture, not measured port status.

Authored Cost Ledgers

Baseline Monthly Demand 4,500,000 Tons

Disruption Throughput Loss -1,732,500 Tons

Danube Barge Redirection +1,215,000 Tons

Avg Demurrage Delay Cost $280,000 / ship

War Risk Premium (Per Voyage) $125,000

Selected Allocation Scenario

Shift 40% volume to Danube barge terminals and rail corridors

The allocation control illustrates an assumed split; it does not verify pilot access, port capacity, route authorization or storage availability.

Current Scenario Values:
Delay: 14d • Drop: 38.5% • Ins: $125k

Distinguish lost throughput from allocated tonnage

Does shifting cargo reduce the modeled loss? This page’s allocation control changes where baseline tonnes are assigned, while the loss percentage stays fixed by severity. Read those two displays separately: they do not form a verified delivery forecast or current passage plan.

Worked reset example

The high-severity fixture assigns 38.5% loss to a 4.5-million-tonne baseline: 1,732,500 tonnes lost and 2,767,500 remaining. At 40% allocation shift, however, the bars split the full baseline into 60% Odesa (2,700,000), 28% Danube (1,260,000) and 12% rail (540,000). Their 4.5-million total is planned allocation before loss, not actual exported throughput.

A $5-million authored hull at 2.5% yields $125,000 per voyage. Delay 14 days × $20,000/day gives $280,000 per ship. The fleet proxy is round(4,500,000/50,000)=90; its assumed 35% demurrage exposure plus 40% premium exposure produces $12.96 million, displayed as $13 million. No measured fleet or policy data validates those exposure weights.

Trace the rule boundaries

Severity supplies delays of 2, 6, 14 or 28 days and losses of 4%, 18%, 38.5% or 68%. Port and corridor selections adjust delay, not loss. Danube allocation receives 70% of the shifted share and rail 30%; mitigation does not compensate for lost tonnes. Tonnage changes the fleet proxy and volumes; insurance changes cost, not route safety.

The cost impact combines assumed demurrage with premium increment above a fixed $10,000 reference. It does not estimate commodity value lost, revenue, profit, total operating costs or recovery time. Map paths and bottleneck descriptions are authored fixtures, not live navigational or damage assessments.

Primary sources and evidence scope

IMO’s Black Sea and Sea of Azov advice links maritime-security guidance, including floating-mine concerns. The historical Joint War Committee circular dated 25 April 2023 makes application to individual contracts a matter for specific negotiation. Neither provides these severity losses, $5-million hull, delay factors or allocation percentages.