On 04/03/2014 14:05, François Lacombe wrote:
Just consider we are talking about pipelines here, "optical pipelines" which are going out of any urban area most of the time.
Along railways, motorways, high-voltage lines, riverbeds, roads, sewers, tunnels... Pretty much every type of right-of-way is used and the telecom link is part of it. Rarely does the telecommunications link exist on its own, except as directly buried cables that exist in rural locations.
Like gas & oil pipelines, we can map markers and cables too, regarding long distance links.
That would satisfy the visibility requirement.
We won't be able to map optical circuits or L2 links and that's not the goal. Let's try to give a map of bare infrastructure before everyone forget about it (and before everyone dig in it 'cause no one can inform them of what is under their feet).
In France, if you are going to dig a hole, there is a legal process to follow (called DICT) to submit the dig's location to a single point of contact where operators answer with blueprints of their network in the viccinity (got a meeting about that in 30 minutes...). If you hit something mentioned in the blueprints, you are responsible for the damage - otherwise it is the operator's fault for not telling you. There is a lot of money involved - a legally binding answer is required and Openstreetmap can't provide that.
underwater ducts get sometimes forgotten by French navigable ways managers (even if they can be sustainably mapped in its GIS).
The position of many pieces of infrastructure is indeed not as precisely known as one may expect - for various reasons, many of them having to do with the costs of doing it right vs. letting someone else handle it later (at a greater cost - which may actually make financial and strategic sense). Finding them when a repair is needed is a fun sport - dragging hooks from a riverboat to grab cables (and trash) or beating around the bush to find an enclosure (that is finally found to be in the middle of a Gipsy camp)...
Anyway, even if you don a scuba suit and survey a VNF-managed river, users won't be interested because you won't provide sufficient metadata such as which specific cable from which operator you found.
_______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
