#792 - Missing Maps: Am Timan, Chad (Archived)

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This project was archived.

  • Author: Missing Maps
  • Priority: Medium

The Missing Maps project aims to map the most vulnerable places in the world (affected by humanitarian crises: disease epidemics, conflict, natural disasters, poverty, environmental crises). Building on HOT's disaster preparedness projects, the Missing Maps tasks facilitate preemptive mapping of priority countries to better facilitate disaster response, medical activities and resource allocation when crises occur.

The Salamat region sees high levels of malaria. Outreach activities, run by MSF, out of Am Timan Hospital ensure that people in remote areas can get the medical care they need. Also, even in normal years, Chad has one of the highest rates of chronic malnutrition in the world. In early 2012, in some areas of the country, rates of global acute malnutrition as high as 24 percent were reported among children under the age of five.

For more information on the Missing Maps, visit www.missingmaps.org.

Created by pedrito1414 - Updated - Priority: low

  Instructions

Entities to Map
Road networks, residential areas and buildings
Changeset Comment
Am Timan, #Chad #hotosm-task-792 #MissingMaps
When saving your work, please leave the default comment but add what you actually mapped, for example "added buildings and a residential road".

Please trace areas of housing (landuse=residential), buildings (building=yes) and map roads and smaller paths for as far as you can follow them (see below for useful tags and resources).

Also trace waterways such as streams, rivers, canals etc.

Use Bing Imagery.

Save with credit to HotOSM. Comment the changeset with: Am Timan, #Chad #hotosm-task-792 #MissingMaps

Commonly used tags and useful resources:

Residential areas:

  • landuse=residential for a border around a cluster of residential buildings
  • building=yes for rectangular & round buildings - trace the building outline

Road networks

  • highway=primary, secondary or tertiary for main roads connecting towns
  • highway=residential inside residential boundaries
  • highway=unclassified connecting smaller villages and hamlets.
  • highway=track only goes to farmland
  • highway=path - not even a 4x4 can get down this

Waterways

  • waterway=river for centreline on waterway
  • waterway=riverbank for river banks!
  • waterway=stream
  • waterway=wadi - path of a seasonal river or stream - depends on the time of year as to whether water present
  • natural=water & water=lake for lakes

Other useful tags

  • leisure=common for large open areas (not fields, just smooth open ground next to towns) as as these are potential helicopter landing sites.
  • amenity=school - school areas are easily identified as 1 or 2 long buildings at the edge of the village, sometimes with two small toilet buildings behind them. The schools are almost always accompanied by a large open area for the children to play in, tag the whole area of the school complex with amenity=school and trace the school buildings and bathrooms.

See the OSM Highway Tag Africa page for a localised description of some of these tags & the OSM map features page for more info

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