EXPERIMENT 18 VERIFICATION
==========================

Verified source markers:
- RESEARCH EXPERIMENT 18
- FINE-GRAINED DETERMINISTIC GEOGRAPHIC ADMISSION ZONES
- BUILD TAG: STRESS-EXP18-FINE-GRAINED-GEOGRAPHIC-ADMISSION-ZONES-001
- EXPERIMENT_NUMBER = 18
- Dataset mode: FINE_GRAINED_GEOGRAPHIC_ZONE_DATASET

Implementation boundary:
- Frozen Experiment 23 movement and dependency architecture retained.
- Each aisle queue is divided into six destination-row zones.
- Admission order is rear to front.
- Seeded relative order is preserved inside each zone.
- Normal deterministic entry-headway rules remain active within each zone.
- Fixed release ticks are calculated before execution.
- No adaptive release, runtime congestion response, backward movement,
  overtaking, aisle switching or seat reassignment.

Validation:
- Java source compiled successfully.
- Full 30-pair / 60-execution verification run completed successfully.
- Runtime output confirmed Experiment 18 startup and completion banners.
- Verification results are not included as official Experiment 18 findings.
