> I would switch it: Map buildings (and maybe residential areas) first and then roads. Buildings or residential areas help mapping roads (if a road is a track or unclassified) while roads are no help when mapping buildings.
I would agree that mapping highways without settlements is more difficult. If its a building project then mapping the residential highways first makes it a bit easier and divides the tiles up. Cheerio John On 26 February 2017 at 05:11, Florian Niel <florian.n...@gmail.com> wrote: > I would switch it: Map buildings (and maybe residential areas) first and > then roads. Buildings or residential areas help mapping roads (if a road is > a track or unclassified) while roads are no help when mapping buildings. > Am 26.02.2017 um 03:36 schrieb Vao Matua: > > John, > > I think there is merit to what you are saying. > > The one caution I would suggest is that "If something is worth mapping it > is worth mapping correctly". Here in Ethiopia I have spent a lot of time > adding nodes to roads that were digitized at a coarse scale. Mapping > quickly doesn't have to be done crudely. > There is no troupe of magic mapping elves that clean up the rough mapping. > > The next set of HOT projects I will set up will be roads/highways only and > then buildings only. > > Keep mapping, > > Emmor > > On Sun, Feb 26, 2017 at 1:16 AM, john whelan <jwhelan0...@gmail.com> > wrote: > >> Just an ideal thought. It came about as I'm loading in bits of Nigeria >> by the enamel bucket at the moment then looking for untagged ways and >> crossing highways. >> >> What stands out are blocks where every track and settlement is mapped and >> blank bits of the map. I've been attempting to join bits of highway >> together to reduce the islands. >> >> Projects that ask for buildings are different but for projects where we >> are looking to map settlements and connecting highways if we omitted the >> paths and tracks leading to fields and rivers and mapped say two or three >> highways max to a cluster of three huts we might be able to get rid of some >> of the large gaps in the map and unless someone can think of a reason why >> tracks and paths leading to fields are essential I think many NGOs could >> manage without. In return we could make more settlements and highways >> available in the same time frame. >> >> Part of the problem is each project is looked at separately. Each >> project manager only thinks in terms of their own project rather than in >> terms of how much resources are available overall. I am aware that some >> organisations feel they are independent having their own mapathons but to >> get the quality up you need validation and if you don't believe me just >> have a look at the map after a mapathon. Nigeria is full of settlements >> wrongly tagged, building=residential or yes are amongst the most common >> incorrect tagging. A number of small villages have been interconnected >> with highway=primary etc. Crossing ways by the hundred. >> >> I don't know how you would write the instructions for a such a project >> but it might help the projects get completed more quickly. I heard an off >> the cuff remark about a project recently, "It'll take a year at that level >> of detail.". Off the cuff comments are more gut feel than accurate but >> there was an element of truth in the remark and I had the feeling the data >> was desired within a month or two. I would suggest if you want the mapping >> done quickly reduce the scope a little. >> >> Thoughts? >> >> Thanks John >> >> _______________________________________________ >> HOT mailing list >> HOT@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/hot >> >> > > > _______________________________________________ > HOT mailing > listHOT@openstreetmap.orghttps://lists.openstreetmap.org/listinfo/hot > > > > _______________________________________________ > HOT mailing list > HOT@openstreetmap.org > https://lists.openstreetmap.org/listinfo/hot > >
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