#1200 - Valley Fire - Lake County, California, USA - Wildland Fires (Archived)

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This project was archived.

  • Requesting Organization: HOT Community
  • Area to map: Fire affected areas of Lake County,
  • Objects to map: Roads, Buildings
  • Imagery: Bing

As of Wednesday, Sept. 16, 14:00 GMT the Valley Fire in California has burned 70,000 acres and displaced 13,000 people and is only 30% contained. The main focus of this project is to map structures and fill in the road network in the area.

Created by bgirardot - Updated - Priority: medium

  Instructions

Entities to Map
buildings, roads
Changeset Comment
#hotosm-project-1200
When saving your work, please leave the default comment but add what you actually mapped, for example "added buildings and a residential road".

Specific Project Notes

  • Most roads are already mapped. If you see roads or paths that need improvement please make additions and improvements as needed.
  • There are a lot of task squares but they should go pretty quickly.
  • People who have never mapped before should watch the two short videos the US State Department made to quickly get people mapping: MapGive Learn to Map

Buildings

  • Please accurately outline all the buildings you can find. The outline should be for the full size of the building even if it is partly covered by trees in the imagery.
  • After drawing the outline, use the 's' key in the web editor to "square" the corners.
  • Many buildings are very close, but do not actually touch each other, try to map them close to each other without letting them connect or share nodes with each other, roads or residential area outlines.
  • In the iD web editor, the first time you map a building you will use the "Building" category and then at the bottom of the list select "Building" again, this is the most generic building tag we can use as we almost never can tell the more specific use of any building from imagery alone.

If you have personal knowledge of a building, please add that information to the building, like the name or type of building (hospital, school, gas station, etc)

Roads and Paths

  • Please map roads and major paths as completely as possible by connecting them to the main road networks where ever possible.
  • Very short segments that do not connect to anything should not be mapped.
  • Short segments of a road or path that you cannot see through the trees but seem very likely to exist should be mapped to keep the road complete
  • Try and map a little beyond your task square so the person who maps the task square next to yours can easily connect them.
  • Always connect roads to other roads where they meet and never end roads on Residential area polygon edges.

General Mapping Notes

  • Be as precise as possible - This takes a little bit of practice, but following a road closely or the outline of a building carefully really makes a difference in the quality of map data produced. Quality is more important than quantity when it comes to mapping. Zooming in close helps.
  • It is ok to "split" task squares - Sometimes a task square will have a lot detailed settlement mapping, if you think it would help to make the task square smaller so the mapping could be finished in a reasonable time, use the "split" link above the task square comment box.
  • Personal knowledge - If you have local knowledge, that is incredibly valuable and any information you are 100% sure of you can add to the object you are mapping. Building names, health facilities, names of roads, etc, are all very valuable and the name= tag can be used to supply that information.
  • Sometimes a task square is already mapped - Sometimes you will find a task square that looks totally mapped or has nothing in it to map. Just double check that it is complete, map anything that was missed, straighten up anything that needs it and then mark it "Done".
  • Invalidated task squares - You might get a notice that a task square was "invalidated" that almost always just means someone found a few more things to map and they did not have time to map them in. No worries, it is part of the process and happens all the time. If you have to stop mapping before you have mapped everything use the "Unlock" link instead of "Done" As long as you are trying to map everything in a task square you feel confident mapping before you mark one "Done" then all is good.
  • Ask questions - if you have questions, please ask, the front page of this HOT Tasking Manager website offers a few ways to ask or if you are at a mapping event, raise your hand and ask.
  • You are making a real difference mapping - Every contribution matters in a real, tangible way. Mapping in not easy but know that your mapping is used by humanitarian organizations every single day.

References

The OSM Wiki is where you can find detailed information on how to tag objects, below are some of the most relevant pages to typical mapping projects.

  Start contributing

Contributors Done Assigned