Is the use of GPS receivers a threat to life?

Is the use of GPS receivers a threat to life?

Could your incredibly accurate little GPS receiver be a threat to your life?

That’s a question posed by a mountain expert who said the increasing use of satellite navigation equipment on the hills is causing new problems.

Heather Morning said, unlike their human owners, GPS units can’t necessarily tell you a safe route between two points. And Ms Morning, the mountain safety adviser for the Mountaineering Council of Scotland, says the rising reliance on electronic devices is robbing hillgoers of their navigating skills.

The MCofS, which represents hillwalkers, mountaineers and climbers north of the border, said navigation in the Scottish mountains can be challenging, particularly if the cloud comes down and visibility is lost. “This is a time when many hillwalkers will pull out their GPS, press a few buttons and confidently follow instructions from the small screen in front of them,” it said.

“It’s an attractive thought to think that purchasing an electronic gadget is going to solve all our problems in the mountains and keep us safe from harm. However recent trends with mountain rescue callouts suggest in fact that it is quite the opposite.

“Those electronic gadgets, designed to make our life easier and safer in the mountains are in some cases contributing to problems and even leading to situations where a 999 call has to be made.

“Death by GPS describes what happens when our GPS fails us, not by being wrong necessarily, but by being too right.

“Our GPS will do the job it is designed to: computing our exact position and the most direct route from point A to point B, but what it can’t do – and you can – is read the ground in-between.”

Navigating using GPS alone can affect the 'mental map'

Navigating using GPS alone can affect the 'mental map'

The council said an example of this would be a crag or very steep ground on the line between A and B, which will be obvious on the map because of the tight contour lines and crag markings. “But miss the detail, punch in A and B with no regard for the terrain marked on the map and our GPS will just blindly take us on the straight line between the two points,” it said.

It also pointed out modern technology can fail for a variety of pragmatic reasons, battery life and user error being top of the list.

Ms Morning also says the continuing use of electronic gadgets to find your way brings about more subtle changes in hillgoers’ behaviour.

She said: “Studies around the world have indicated that using GPS for navigation – even when it’s done properly – can leave us with less knowledge of where we are, not more.

“People subconsciously build up a mental map as they move around, but it seems to be that, when they are following directions from a GPS they are not registering their surroundings in the same way they would have to when using a map and compass.

“One city-based study indicated that walkers using GPS had less memory of a route than those who had followed the same route using a map. And another study concluded: GPS eliminated much of the need to pay attention.

“It seems to be clear from these studies that people using GPS for navigation just aren’t building a mental map in the same way you do in traditional map and compass navigation, where you are constantly relating the map to the terrain around you.

“That means if the technology fails for whatever reason, you are going to be a lot more lost than you would have been if you were using a map.

“It’s not only relevant in nightmare scenarios either: it affects the satisfaction and pleasure you get out of any walk. Real navigation involves you in the terrain, both in your immediate surroundings and in the wider sense. Surely that’s a lot more satisfying and intimate an experience than following an electronic arrow up and down a hill it seems you hardly pay attention to – that’s just exercise.

“Letting the gadget do the work also allows any existing navigation skills to grow rusty.”

The MCofS said basic skills of navigation remain essential in the hills and mountains of Scotland and pointed out it offers a number of subsidised navigation courses, which give walkers an easy to follow practical introduction to map and compass skills which will make them safer and more confident in the mountains.

There are also courses available commercially in the proper use of GPS devices, it added.

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