IOF Event Advisor’s Clinic
April 19-21. 2002, Brno, Czech Republic
ISOM 2000
(the map standard and
misinterpretations)
ISOM2000 – the scale issue 1
The scale for an orienteering map is 1:15 000. Terrain that cannot be fieldworked at a scale of 1:7500 and legibly presented at a scale of 1:15 000, is not suitable for international foot-orienteering.
Maps at 1:10 000 may be produced for relay and short distance (plus medium) competitions.
The scale 1:10 000 is recommended for older age groups (45 and above) where reading fine lines and small symbols may cause problems or for younger age groups (age classes 16 and below) where the capacity of reading complex maps is not fully developed.
Where a map is enlarged to a scale of 1:10 000 or greater, all lines and symbols must be enlarged to 150% (like a blueprint).