IOF Event Advisor’s Clinic
April 19-21. 2002, Brno, Czech Republic
ISOM 2000
(the map standard and
misinterpretations)
ISOM2000 – the scale issue 3
The reasons for the decision to permit only scale 1 : 15 000 in junior and elite competitions over the classic distance are the following disadvantages of maps at 1 : 10 000:
Number of controls problem:
The general experience is that a course on a 1:10,000 map has significantly more controls than a course of the same length on the same map at 1:15,000. The course is thus more a long „short distance" event and route choice as an orienteering technique is often neglected.
Wildlife protection problem:
With a reasonable map size of up to A3 it is only possible to represent an area of 3.0 km x 4.2 km, i.e. about 12 km2 at a maximum. Such an area is generally too small to be able to permit designation of adequate wildlife protection areas.