Proposal:Contact line attachment
| Contact line attachment | |
|---|---|
| Proposal status: | Draft (under way) |
| Proposed by: | reDoubleYou |
| Tagging: | line_attachment=* |
| Applies to: | 
|
| Definition: | Line attachment is about how the over head contact line is bound to the supports. |
| Statistics: |
|
| Rendered as: | hidden, maybe OpenRailwaymap or similar |
| Draft started: | 2025-01-16 |
Proposal
This proposal aims to propose new tags to make the already existing and used tag line_attachment=* suitable by proposing accordingly tags for over head contact lines.
Rationale
For electric power lines the values to describe the attachment of the cables are defined. Further more need to be defined to cover the circumstances of over head contact lines.
Tagging
The tag is given to the node, where the over head contact line is supported. (It is planned from me to propose to map some types of attachment equipment like head-spans and portals as way between the involved catenary masts. In this case a node is created where over head contact line and structure are crossing.)
Tag for attachment of trolley-type over head contact lines
| Key | Value | Description | Photos |
|---|---|---|---|
| line_attachment | singe-point | the single-point attachment fixes the contact wire only by a clip directly mounted on a cross-span wire or cantilever support | |
| pendant-type | contact line is mounted with an offset via dropper wires to the cantilever and can freely swing | ||
| bridle-type | contact wire ist mounted with a bridle wire and can freely move in longitudinal direction as it is mounted to a pulley sheave | ||
| elastic | cantilevers that use rubber elements to be able elastic, contact wire is directly mounted to them | ||
| stitch | like bridle-typ, but no pulley sheave is used; in some cases, the triangular stitch wire is this long that droppers are used | 
|
Applies to
The proposed tag applies to nodes where over head contact lines are supported.
Examples
Rendering
No changes at OSM carto rendering.
Features/Pages affected
External discussions
The idea for this proposal originated from the discussion page of the Proposal:Contact line.
Comments
Please comment on the Proposal_talk:Contact_line_attachment.