* This layer is included only in Navigation.
This layer contains that indicates road structural objects for each zone (bridge and tunnel, etc..)
| Field | Type | Remarks |
|---|---|---|
| OBJECTID | Integer | A unique ID that indicates the object. |
| LINK_ID | Integer | OBJECTID of the corresponding road link. |
| LINKATTR_C | Integer | Intra-link Attribute Class Code. |
LINKATTR_C (road structural objects code)
| Description | Code | Graphic Style |
|---|---|---|
| Bridge, Elevated track | 1 |  |
| Tunnel | 2 | |
| Cave Gate | 3 | |
| Crossing Place | 4 | |
| Underpass | 5 | |
| Unsurfaced | 8 | |
| Tunnel (Square type) | 100 | |
| Tunnel (Round type) | 101 | |
| Crossing Place(Half round type) | 102 |