Re: [Talk-GB] man_made=survey_point

Thanks Jass - I was not aware of this excellent piece of work by Greg - do we know if the proposals "Possible import" were followed through? I wonder if OS have other data for the 'benchmarks i.e. more precise than the data currently available. On 23/08/2020 15:26, Jass Kurn wrote: Gregrs

Re: [Talk-GB] man_made=survey_point

Gregrs has provided converted data for trig points, with the data obtained from a FOI request. They created a page to explain the process, and made available the converted data as a gpx file https://wiki.openstreetmap.org/wiki/Ordnance_Survey_triangulation_stations . Jass On Sun, 23 Aug 2020 at

Re: [Talk-GB] man_made=survey_point

My thinking was that most people surveying would not use accurate and precise systems such as differential GPS and/or RTK. So if these systems were used to accurately and precisely locate distinct local markers (i.e. trig points, benchmarks etc.) then local surveys could potentially use these

Re: [Talk-GB] man_made=survey_point

This approach has been advocated in other European countries, and the Spanish community imported all the points of the national geodesic network (e.g., for Extremadura ). They more or less violate the idea of OSM as something

[Talk-GB] man_made=survey_point

I have been looking at what is recorded under this tag in my area. I see that there aren't that many and those that are on OSM refer to trig points (see also http://trigpointing.uk/). My thinking is that if these are accurate and precisely marked on OSM then perhaps they could be used for