[OSM-talk] Strava high resolution heatmap
Hi, I am trying to find out at what point we sare with the Strava high-res heatmap. Forma a lagal point of view: can we use it for improving OSM? If yes, how can we do that? Unfortunately there is a lot of out-dated information around. Volker ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
[OSM-talk] Strava high resolution heatmap
The reason why I am asking about the Strava high-resolution heatmap is as follows: Here in Italy we used to have well-aligned public Ortophotos that we widely used as reference. Unfortunately this service is now down, and we have no information about its future. All other available imagery has variable x-y errors and, most of them, in addition serious parallax problems in mountain areas. This leaves us as reference for aligning the imagery only the uploaded GPX tracks in OSM and, hopefully, Strava heatmap data. I do not intend to use the Strava heatmap for entering directly data in OSM - I want them for aligning the imagery from Bing, Maxar, Esri, and Mapbox, including the possibility to reliably spot any parallax errors. Hence again my question: does anyone on this list know on how to access the Strava high-resolution heatmap as imagery in JOSM or iD. ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Strava high resolution heatmap
On 3/31/2020 7:26 AM, Volker Schmidt wrote: Hi, I am trying to find out at what point we sare with the Strava high-res heatmap. Forma a lagal point of view: can we use it for improving OSM? If yes, how can we do that? Unfortunately there is a lot of out-dated information around. The latest I've heard is this thread from last November: https://lists.openstreetmap.org/pipermail/talk/2019-November/083563.html Rodrigo Davies at Strava says they "don't currently see a problem" with using the heatmap for mapping. A screenshot of this communication was added to the wiki at https://wiki.openstreetmap.org/wiki/Permissions/Strava The wording falls short of a formal licensed release so personally I'm not comfortable adding paths based on Strava data alone. But I've used it to help with aligning aerial imagery, double-checking my own GPS traces, and marking spots for further survey. I probably wouldn't be comfortable adding paths based on Strava data alone even if they did have an explicitly ODBL compatible license. Just because there are GPS traces doesn't mean there's a path (plenty of popular bushwacking routes in their data) and certainly doesn't tell me what value to use for the highway key. Jason ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Strava high resolution heatmap
Jmapb via talk writes: > The latest I've heard is this thread from last November: > > https://lists.openstreetmap.org/pipermail/talk/2019-November/083563.html > > Rodrigo Davies at Strava says they "don't currently see a problem" with > using the heatmap for mapping. A screenshot of this communication was > added to the wiki at https://wiki.openstreetmap.org/wiki/Permissions/Strava Someone saying they "don't see a problem" is hardly a license grant, even if they are authorized to bind the company. > The wording falls short of a formal licensed release so personally I'm > not comfortable adding paths based on Strava data alone. But I've used > it to help with aligning aerial imagery, double-checking my own GPS > traces, and marking spots for further survey. Agreed that your approach is very reasonable. > I probably wouldn't be comfortable adding paths based on Strava data > alone even if they did have an explicitly ODBL compatible license. Just > because there are GPS traces doesn't mean there's a path (plenty of > popular bushwacking routes in their data) and certainly doesn't tell me > what value to use for the highway key. I am very much opposed to adding paths based solely on Strava for exactly these reasons. It does seem reasonable to use as a clue for going into the field to survey something that might or might not exist. Additionally, around me there are problems with people (mostly on mountain bikes) trepassing onto posted properties. If these tracks show up on strava, even if they are actual paths, mappers are prohibited from performing on-ground verfication. This is another reason to be uncomfortable with strava-only edits. ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Strava high resolution heatmap
On Tue, 31 Mar 2020 12:56:32 -0400 Jmapb via talk wrote: > I probably wouldn't be comfortable adding paths based on Strava data > alone even if they did have an explicitly ODBL compatible license. > Just because there are GPS traces doesn't mean there's a path (plenty > of popular bushwacking routes in their data) and certainly doesn't > tell me what value to use for the highway key. It also doesn't tell you the access tagging. Around me, a fair number of Strava paths are "access=private" or "access=no", sometimes in combination with things like "barrier=razor_wire". -- Mark ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk