The Streets TMC (Streets_TMC File Geodatabase Table) table represents Navigable Links (road networks) in the Middle East and Africa.
The TMC (Traffic Message Channel) coding is a mechanism to connect TMC-based dynamic traffic information to the HERE maps. The TMC codes represent pre-defined code available in so-called Location Tables. These TMC codes enable cross-referencing between TMC-based traffic messages and HERE map features.
This layer contains the following fields:
Field Name | Description | Values |
---|---|---|
OBJECTID | Internal feature number | Sequential unique whole numbers that are automatically generated. |
EdgeFCID | Edge Feature Class ID | The Feature Class ID corresponding to the edge element. |
EdgeFID | Edge Feature ID | The Feature ID corresponding to the edge element. The Edge Feature ID is an Esri specific ID and refers to the Object ID in the Streets layer. |
EdgeFrmPos | From Edge Position | The From position along the linear feature that represents the edge element. This allows for the usage of streets composed of multiple edge elements. |
EdgeToPos | To Edge Position | The To position along the linear feature that represents the edge element. This allows for the usage of streets composed of multiple edge elements. |
TMC | TMC Code |
Traffic message channel (TMC) codes define standard unique identifiers used for getting live traffic speed and representing the associated road segment. A TMC code consists of a combination EBU Country Code (for example "5"), Location Table Number ("03"), TMC Path Direction ("+"), Location Code ("05548"). Analog TRAFFIC_CD field (Traffic table) in NAVSTREETS documentation. - 503+05548 - A17-03194 etc. |