Japan Infrastructure & Deputy-Capital Balance Simulator D3 Engine v7

Simulate public investment trade-offs between regional maintenance & vice-capital mega-density

Allocation Controls Total: 19.2T ¥
Metropolitan Deputy Capital 65% (12.5T ¥)
Regional/Rural Longevity 35% (6.7T ¥)
Simulation Time Horizon 15 Years
Presets & Scenarios
Disaster Stress Test
National Tax Yield Index
118.4 pts
+12.4% vs Baseline
Seismic Disaster Redundancy
82.5%
High Redundancy
Rural Infrastructure Decay Rate
4.2%/yr
Moderate Backlog
Regional Pop. Retention
62.1%
Outflow Controlled
Proof State: Vice-Capital Dual-Hub Strategy Loaded | Metro 65% / Rural 35%
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