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转-对头驴的要求(含紧急事件处理方法)-英语
Navigation
OS Map Symbols
Grid References
Contours
What is a bearing?
What does a compass actually do?
The 3 North’s
Setting a map
Map to Terrain
Terrain to Map
Triangulation Rapid & Thorough
Attack points
Different Map types, i.e. Old Yellow, New Yellow, New Orange
Cunningness
Counting Walls & Streams
Progress along a path measurement via. a 90° bearing
Barns and other such constructions
Map inaccuracies and miraculously appearing forests
Public rights of way & footpaths
Access land
Folding maps
Junction decision making with the aid of a compass
Watch the skies for impending weather
The Human Factor
Creative leadership
Tailor the walk & route for the group
Tell the group what’s going on
Diplomacy: i.e. shield the punters from harsh truths
Show them the route and where they now are
Count faces not heads
Let back markers rest, i.e. no elastic groups
Keep group within line of sight at all times
Pick a good / sheltered lunch spot
Ask the group about lunch
Keep an eye on their health / fitness
Emergency Procedures
Lateness
If only 5-15 minutes late, carry on regardless
If convenient use a phone to page the group, else carry on.
Stay on or near the route card unless there’s a sensible short cut
Stick together unless sensible to do otherwise
Practice a page
Express the need for speed in typing
Write down message to send before hand
Lost: Good visibility
Aim for a known route, e.g. road / big river then use compass at 90° heading to determine position along it
Retrace steps to last known position
Position yourself via. guesstimation or failing that triangulation
Road signs for progress between towns
Nearby phone box, ask the operator "where the dickens am I?"
Postboxes have location on them
National Trust signs often have position information, or it’s obvious where they are on the map i.e. next to an entrance to NT land
If you’re really really stuffed, then sit down and stop. Don’t just wander aimlessly, you’re only making the search area larger
Lost: Poor (no) visibility
Don’t get lost in the 1st place, you can see fog coming a mile off if not in a forest.
Remember where you’ve been, look behind you
Stop and Think
Stay in Line of Sight
Use Compass / GPS
Distances seem much longer
Objects seem bigger and further away in fog
Head for a known route / position, e.g. road, green lane, track, wall, town.
Failing that head in the general direction that you know is a good one, e.g. head due East until you reach a wall / track / road / stream. Then follow that.
If you’re really really stuffed, then sit down and stop. Don’t just wander aimlessly, you’re only making the search area larger
Lost Members
Assuming group is not late, return to last known place
Try to guess where they might have gone
Go get them, e.g. nearest pub
Keep the group with you
Recruit any passing ODS groups to aid in the search
Ask passers by if they’ve seen anyone
Get a sensible description from the group
If late, or getting late, recruit as many ODS walk leaders as possible
Get the co-ordinator in on it ASAP
Keep any search patterns small, limit to |
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