Z-Level crossings table
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The Zlevel_Crossings table models the relative stacking order where navigable street segments (links) cross other navigable segments or cartographic features, such as railroads or water. Valid z-level values range from -4 to +5. These values indicate relative stacking order, not actual elevation. The table contains entries only when crossing features have different z-levels, rather than crossing at grade.
The z-level information is part of the Streets table to determine where navigable segments don't cross at grade and therefore differ from a traversable intersection when generating routes in the network dataset. For example, a controlled-access highway underpass doesn't connect to the controlled-access highway.
For descriptions of the OBJECTID and GlobalID attributes, see Esri® system fields.
| Field name | Data type | Description |
|---|---|---|
| UPPER_LINK_ID | Integer (4) | Unique identifier for the upper link in the z-level crossing |
| UPPER_NODE_ID | Integer (4) | Unique identifier for the upper node in the z-level crossing |
| UPPER_ZLEVEL | Integer (4) | The z-level of the upper link or node in the z-level crossing. This is a value between -4 to +5. Don't use this attribute to indicate actual elevation gain or loss. Prevents routing between links that don't connect in reality |
| LOWER_LINK_ID | Integer (4) | Unique identifier for the lower link in the z-level crossing |
| LOWER_NODE_ID | Integer (4) | Unique identifier for the lower node in the z-level crossing |
| LOWER_ZLEVEL | Integer (4) | The z-level of the lower link or node in the z-level crossing. This is a value between -4 to +5. Don't use this attribute to indicate actual elevation gain or loss. Prevents routing between links that don't connect in reality |
| LEFT_REGION_ABBREV_LATIN | String (50) | Description, using Latin character set |
| RIGHT_REGION_ABBREV_LATIN | String (50) | Description, using Latin character set |
| LEFT_REGION_LATIN | String (100) | Description, using Latin character set |
| RIGHT_REGION_LATIN | String (100) | Description, using Latin character set |
| ISO_COUNTRY_CODE | String (3) | ISO 3 character country code |
Updated 7 days ago