Designated Route in the Sea Area Near Entrance of Irago Suido Traffic Route 1. Vessels intending to navigate southward along Irago Suido Traffic Route should - Navigate in the area to the west side of Line a; and - Navigate by crossing Line c. 2. Vessels that have passed southward through Irago Suido Traffic Route should - Navigate in the area to the west side of Line b; and - Navigate by crossing Line d. 3. Vessels intending to navigate northward along Irago Suido Traffic Route should - Navigate in the area to the east of Line b; and - Navigate by crossing Line e. 4. Vessels that have passed northward through Irago Suido Traffic Route should - Navigate in the area to the east of Line a; and - Navigate by cross ing Line f. 5. For detailed information on the designation tracks, refer to Pub. No. 301, South and East Coasts of Honshu. -------- New,20111216,JP,JP,graph,chart1051 Updated,20151105,JP,JP,graph,chart1051