In your group, there will be 2 pairs with this assignment. One pair will do the left side of the route you are walking. One pair will do the right side. Make sure you don't get confused!
We are going to mark all compounds and all houses using the satellite images. But from the air, we can not see what type of Barrier (Fence, Hedge, Wall, etc) compounds have. We can also not really see where their gate is. So that is what you will do.
- A hedge is a line of closely spaced shrubs and tree species, planted and trained in such a way as to form a barrier or to mark the boundary of an area.
- A fence is a freestanding structure designed to restrict or prevent movement across a boundary. It is generally distinguished from a wall by the lightness of its construction.
- A wall is a freestanding structure designed to restrict or prevent movement across a boundary made from solid brick, concrete rocks, and almost always built so that it is opaque to vision.
- Retaining Wall (you will find these!
- A retaining wall is a structure that holds back soil or rock from a building, structure or area. Retaining walls prevent downslope movement or erosion and provide support for vertical or near-vertical grade changes.
- There are 2 ways you can get through a Barrier. Note these as dots on the lines of your Barriers.
For every gate, if its indicated, also note the plotnumber.
Of all barriers, try to guess the height. In meters! (Reinier is 1.93 meters)
There is much more info on the Barriers page: http://wiki.openstreetmap.org/wiki/Barrier