Occassional thoughts about orienteering
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| okansas.blogspot.com Occassional thoughts about orienteering |
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Monday, February 12, 2007 Trying to find a lost orienteerAt a training camp a few years ago I spent an hour or so trying to find a lost orienteer. It was at the Texas Junior O' Camp. I'd just finished eating dinner when someone came and asked me to get prepared to go back into the forest and search for the missing orienteer.The organizers got a group of maybe 15-20 orienteers to go out and search. They had a map with a grid drawn over it. They assigned specific grids to groups of 2 orienteers. We were supposed to stay together and search our assigned grid. I went with Tom. A couple of things struck me as strange about the search. First, having us go together seemed like a waste of resources (we had radios so that we could call for help if we found the missing orienteer). If we'd split up, we could cover twice as much ground. Second, the search seemed to treat each part of the forest equally. Wouldn't it make more sense to focus on specific areas? My thinking was that the biggest risk was that the kid had fallen and injured himself. It seemed like we ought to focus on the areas where that was most likely (say in the areas with lots of rocks and cliffs). We didn't spend much time searching before someone found the kid (wandering the wrong direction on a road far from the section of forest we were searching). Even a few years later, I'm struck by how strange the search method seemed to be. There must be good ways to search for someone who is missing. Today, I came across something called Bayesian search theory which seems like a much better way to search and, in fact, adaptable to orienteering. Back to okansas.blogspot.com. posted by Michael | 7:52 PM 
Comments:
Based on my own experiences, the first thing to try in the case of a missing orienteer (aside from the good old approach of sending an experienced person around the course backwards) is to get some suitable vehicle and do a tour of the perimeter roads. This almost always works. Orienteers rarely become incapacitated, and once a lost orienteer finds a major trail or road, he usually sticks with it.
In the TJOC case, I was under the impression that they'd already checked the roads. The lost guy was found on a road. Maybe he was so far away that they hadn't checked.
Michael # posted by
 : 7:29 PM
Resim
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