Hi all, After the review of line_attachment key this summer and Karlsruhe hackweekend at Geofabrik headquarters last week, let me introduce the second stage of tower:type key cleaning project for power lines. Great time has been spent on discussing and finding relevant situations. https://wiki.openstreetmap.org/wiki/Proposed_features/Lines_management
It's now about the arrangement of power lines around their supports: how the lines branch, split, transpose or terminate. As current tagging (without line_management) still collides with any tower building function, the line_management key may be a solution to strip unrelated values from tower:type. I've published a diary entry to give more explanations https://www.openstreetmap.org/user/InfosReseaux/diary/391058 I'd draw your attention to the conclusion : "Mapping utility supports like power towers or telecom poles is a worldwide challenge. For instance in France, professionals including operators and contractors rolling out overhead telecom cables are currently looking for approx. 16 millions missing shared power poles that weren’t mapped in operational GIS. There’s no doubt updating OSM can help." There's no short term risk of importing massive data, at least. This proposal is a first try and may cause worries about some local concerns. RFC is here to solve this prior to vote anything. We have to focus on simple situations to begin with to adopt the right semantic. More complex cases will be added step by step. Feel free to open a topic in Talk page. All the best François
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