ORIGINAL COMPANY-CONTEXT PRACTICE
Detect conflicting pipeline transfer windows
Original practice scenario: A hypothetical logistics planner schedules transfers through shared pipeline segments. Transfers occupy multiple consecutive segments and require separation between incompatible products. Design conflict detection.
Written for independent practice using company context; this is not a verified question from a company interview.
A REASONED APPROACH
Model answer.
Define occupancy intervals and compatibility constraints explicitly. A transfer cannot be validated by checking only its start time or the first segment it uses.
Work through it
- Represent the planned route, segment-specific entry and exit times, product class and required separation, using a consistent boundary convention and time basis.
- Check interval overlap against existing reservations on every affected segment, applying additional separation rules where product transitions require them.
- Reserve the complete feasible route consistently, returning the conflicting segment and rule when a concurrent booking or later adjustment invalidates the plan.
Tradeoffs to discuss
- Conservative buffers simplify conflict control but reduce throughput; tighter schedules require stronger timing evidence and recovery options.
Common pitfalls
- An interval ending exactly when another begins is valid only under the chosen separation rule.
- This scheduling exercise does not establish hydraulic feasibility or authorize real pipeline operation.