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Note: A benchmark may not be necessary if the reference point / landmark is sufficiently close to the perimeter of the hazardous area.
==Polygon / polyline points for areas==__NOEDITSECTION__
'''Start Point'''
is used as the name for the first Turning point in the polygon/polyline
'''Datum Point'''
has the same definition as Start point but is more unusual.
'''Turning point'''
is a fixed point on the ground which indicates a change in direction of the perimeter of the hazardous area. It shall be clearly marked and recorded. Buried metal objects should be used to mark all turning points for permanent future reference.
'''Intermediate point'''
is a survey marker used between Turning points that are more than 50m apart or if it is not possible to see the next Turning point due to e.g. vegetation.
'''End Point'''
is used as name for the last Turning point of the polygon/polyline.
==Point types to be used for AXO / Ammunition Storage==__NOEDITSECTION__
AXO / Ammunition Storage is a special case which normally is a spot and then reference point should be used. If the area is big a polygon should be recorded as well.