Key takeaways
- Obtain responsible clearance before treating an alternative as feasible.
- Compare the same voyage segment and required outcome in every scenario.
- Keep insurance, fuel, time and other supported expenses separate.
- Treat a cheaper future premium as an assumption unless actually confirmed.
- Distinguish total voyage expense from the amount ultimately borne by a particular party.
A listed area does not provide a price
War-risk rating is individually negotiated. LMA listed-areas guidance
Use the actual insurance proposition for the vessel, route, period and relevant conditions. Do not turn an area classification, a headline or another ship's experience into a premium quote for the current voyage.
If no current proposition exists, show the insurance component as unavailable or model an explicitly fictional assumption. The scenario should not imply that cover can be obtained merely because the analyst assigned it a cost.
Establish the decision boundary
Start with the question the commercial team must answer. It might concern the remaining cost of a voyage from the current position to a defined destination, or the additional expense relative to an already approved plan.
Use that same boundary throughout. A direct-route total covering the full remaining passage cannot be compared fairly with an alternative showing only its extra fuel but omitting its extra time. Likewise, a waiting option must include the waiting period as well as the eventual movement.
Identify costs already irrevocably incurred and common to all alternatives. Preserve them in the wider account, but do not pretend they are avoidable savings from a new choice. Where an earlier payment can actually be refunded or credited, include that only on its supported basis.
Feasibility is a gate, not a price adjustment
The responsible master, operator, security advisers, insurers and contractual reviewers determine which alternatives can be considered under the actual circumstances. A low calculated cost cannot override their assessment.
Do not assign an arbitrary monetary allowance to an unapproved safety or coverage gap and then call the route feasible. The model should either exclude the alternative or identify it as conditional pending the required confirmation.
Use neutral scenario names until the actual route and service conditions are established. Avoid implying that a route is safe, open or insurable from a general public report alone.
Build a cost structure that avoids duplication
Separate the insurance amount, incremental fuel, vessel time, waiting expenses and any other relevant service or contractual component. Identify whether each amount is quoted, agreed, estimated or unavailable.
The vessel-time basis should be an authorised commercial valuation. It should not silently include fuel if fuel is also added separately. Similarly, a waiting allowance that already includes specific expenses should not be added again through another line.
Where an agreement allocates an expense to another party, retain the gross voyage cost and show the proposed allocation separately. A possible recovery is not the same as a reduction in the physical resources consumed or the immediate cash requirement.
ILLUSTRATIVE: three alternatives on one boundary
ILLUSTRATIVE fictional alternatives, not routes, insurance quotations or forecasts. Assume all alternatives have separately received the necessary responsible clearance and reach the same destination. Use an active vessel-time value of $30,000 per day, with fuel excluded from that value.
| Alternative | Time component | Fuel | Insurance assumption | Total |
|---|---|---|---|---|
| Proceed | 2 active days = $60,000 | $80,000 | $60,000 | $200,000 |
| Wait, then proceed | 4 waiting days at $18,000 plus 2 active days = $132,000 | $80,000 | $35,000 | $247,000 |
| Approved alternative route | 8 active days = $240,000 | $160,000 | $15,000 | $415,000 |
The waiting option assumes, rather than predicts, a lower later premium. Its total is still $47,000 above proceeding. The alternative route is $215,000 above proceeding under these inputs.
If the later premium in the waiting case remains $60,000 instead, that option totals $272,000. The illustration omits every expense not stated and cannot establish which real-world alternative is permissible or preferable.
The useful result is not a universal ranking. It is a transparent explanation of which assumptions create the ranking and which confirmations the actual decision still requires.
Waiting buys time, not necessarily a lower price
A waiting scenario should explain what new information or commercial proposition the delay is intended to obtain. It may allow a review to conclude or a programme condition to change, but it should not automatically assume that insurance becomes cheaper.
Keep at least one branch in which the hoped-for improvement does not occur. The buyer then sees the cost of waiting without the benefit, rather than a scenario constructed to justify a preferred decision.
Do not invent a probability of improvement. If a defensible authorised probability assessment is unavailable, present separate conditional outcomes and the decision deadline. This preserves uncertainty instead of hiding it inside an expected value.
Rerouting changes more than fuel consumption
An approved alternative can affect passage duration, delivery timing, service requirements and contractual obligations. Obtain the relevant programme and cost inputs from the responsible teams rather than deriving operational instructions from a map.
Keep any insurance proposition specific to that alternative. An alternative route should not automatically receive a zero premium merely because the initial area concern is avoided.
Where additional freight, hire or other contractual adjustments may apply, check the actual incorporated terms and obtain qualified review. Show disputed or contingent allocations separately from established costs so the model does not answer a legal question through arithmetic.
Use a scenario-readiness matrix
| Input | Proceed | Wait | Alternative route |
|---|---|---|---|
| Responsible feasibility | Current route assessment | Approved waiting and later movement basis | Current alternative assessment |
| Insurance | Actual scope and period | Waiting and later coverage questions | Alternative-specific proposition |
| Time | Supported remaining passage | Waiting plus eventual passage | Complete alternative duration |
| Fuel | Approved estimate | Waiting and movement basis | Alternative requirement |
| Contract | Applicable current obligations | Delay and instruction treatment | Deviation or additional-cost review |
| Decision trigger | Conditions for proceeding | Information sought and review deadline | Conditions for committing to the alternative |
Show the difference between cost and cash timing
The lowest modelled total may require a larger immediate payment. Identify premium due dates, funding conditions and any reimbursement timing separately from the cost ranking.
A party expected to recover an expense later may still need to fund it now. Do not treat an unconfirmed reimbursement as cash already available, and do not assume that every cost follows the same payment schedule.
This distinction can affect which alternatives the authorised decision-maker can actually implement. It should appear as an explicit constraint rather than an unexplained rejection of the model's lowest total.
Common mistakes
Avoid comparing different voyage boundaries, treating waiting as a forecast premium reduction and assigning zero insurance to an alternative without confirmation. Other errors include double-counting fuel in a daily cost, treating possible recovery as immediate cash and allowing a cost ranking to override responsible feasibility decisions. Keep each scenario conditional on its actual evidence.
Where Zeaclub fits
Zeaclub offers digitalised procedures across the voyage workflow.
Zeaclub provides 24/7 operating systems and worldwide coverage.
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Educational information only; not legal, financial or trading advice. Contract wording and applicable rules control. Verify current requirements and obtain qualified advice before acting.
Frequently asked questions
Does the lowest-cost scenario determine the route?
No. Responsible safety, operational, insurance and contractual assessments establish which alternatives may be considered.
Should waiting assume a cheaper premium later?
Only as an explicit scenario assumption unless a relevant proposition is actually confirmed. Include a branch without that improvement.
Can an alternative route be given zero war-risk cost?
Not automatically. Obtain the applicable insurance and commercial basis for that route.
Should reimbursable expenses be omitted?
No. Show gross expense, proposed allocation and cash timing separately, with qualified review where rights are uncertain.
What makes a scenario useful?
A consistent boundary, supported inputs, explicit uncertainties and a clear account of which decision or confirmation changes the outcome.