#474 - Kano Road Network Mapping for Polio Eradication, Nigeria (Archived)

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This project was archived.

eHealth Africa is working at mapping Northern Nigeria. These maps are used in campaigns that aim to eradicate polio in this area. The maps are used to track the vaccination teams, delivery of vaccines and plan new vaccination campaigns.

Created by olub - Updated - Priority: low

  Instructions

Changeset Comment
Kano Road Network, #hotosm-kano-task-474 Source Bing
When saving your work, please leave the default comment but add what you actually mapped, for example "added buildings and a residential road".
Imagery

bing[22]:http//www.bing.com/maps/


Digitise roads with priority on Secondary Roads, Tertiary Roads, Unclassified Roads, Tracks (when leading to hamlets) and Residential Roads.

We’ll use as reference the Nigeria Wiki Project and the Highway Tag Africa for tagging. Please, keep in mind that the road status (surface, smoothness…) shouldn’t be related with the actual tags of the roads.

The highway=trunk is for the Axxx national roads, and the highway=primary for the Fxxx federal roads. They seem to be mostly done, although for many of them the corresponding relation needs still loads of working (please refer to the Nigeria Wiki Project).

highway=secondary: use this tag for roads that aren’t primary (Federal) roads interconnecting the LGA capitals and that are not Axxx trunk roads or Fxxx federal primary roads.

highway=tertiary: use this tag for the roads that interconnect all the ward capitals. Wards are municipalities. Each LGA in Nigeria has between 10 and 15 wards.

This tagging schema should be taken as a reference, because some wards don’t have a real capital centre, or are so light populated that a tertiary road could be to much, and would deserve the highway=unclassified tag instead. In fact, other roads interconnecting some LGA capitals could have to be downgraded to tertiary.

highway=unclassified: use this tag for the roads leading to smaller towns and villages.

highway=track: small roads interconnecting hamlets and going outside the residential areas, mainly for agricultural and forestry purposes. They don’t have connecting purposes.

highway=residential: Roads within settlements. If a road (let’s say a tertiary road) crosses through a village or town, it doesn’t change its tagging to residential.

If you are unsure of what tag to assign to a road, use the provisional highway=road tag.

Please note that, except tracks, the default surface is paved, so if unpaved add the surface=* tag according to the Highway Tag Africa. If you know that it is unpaved, but don’t know the actual type of surface, just tag it as surface=unpaved. For more info, please read the Highway Tag Africa wiki page.

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