Advanced Route Choice

1. Advanced Route Choice Canadian Orienteering Federation 2004

2. Advanced Route Choice • Aim off • Climb early • Contouring • Attack Points (Traffic Light) • Rough Compass and map reading (red lining) • Simplify

3. Aim Off • Advantage • Know which side of a catching feature • Increased running speed • Simplify the map reading required • Disadvantage • Longer distance • Tends to promote carelessness

4. Climb Early • Advantage • Better attack point options • Less fatigued when attacking control • Better visibility near the control • Disadvantage • Eliminates some route choice options

5. Contouring • Advantage • Maintain height, energy • Use contour as a “handrail” • Disadvantage • Rarely a straight line • Easy to gain, lose height if not skilled • Steep slopes are very slow to traverse (steepness and vegetation grows at odd angles) • Tops of hills often open, easy running • General Rule: 10m climb = 100m flat

6. Attack Points • Traffic Light (Green Yellow Red) • Green = Rough O to catching features • Yellow = Rough/precision O to Attack Point • Red = Precision O from Attack Point • Attack from above • Attack cliffs (foot of) from below • Boulders often more visible from below • Reentrants can be visible from below • Extend the control

7. “Traffic Light”

8. Attack From Above

9. Attack From Below

10. Redlining Straight line compass Map read ahead Prevent errors by looking for possible parallel errors Useful in flatter, open terrain with good visibility

11. Simplify • Break it down • Look for catching features • Orienteer to the next catching feature to shorten the leg • “Long legs are just a series of short legs”

12. Simplify • Break it down • Look for catching features • Orienteer to the next catching feature to shorten the leg • “Long legs are just a series of short legs”