are typically proprietary government data, professional drafting services and researchers often utilize them for localized urban projects and heritage documentation. JICA報告書PDF版 | JICA Report PDF Core Vision and Planning Stages

Verify the drawing scale (e.g., 1:320,000 for city-wide, smaller for district layouts).

Crucial vectors defining road widths (from 15m local streets to the 150m highway system).

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