All rights reserved. Naismith’s Rule first makes a calculation based on distance over time. The time should be calculated for the slowest person in a walking group.

eg if your walking a 4km/h for 4 km it will take you one hour. Not rocket science. This rule of thumb was devised by William W. Naismith, a Scottish mountaineer, in 1892. The Rule requires new or expanding construction to pay a one-time fee for residential or commercial projects. Over the years several adjustments have been formulated in an attempt to make the rule more accurate by accounting for further variables such as load carried, roughness of terrain, descents and fitness (or lack of it). A modern version can be formulated as follows: Naismiths Rule Naismiths Rule. © UKClimbing Limited. But by starting with Naismiths Rule as a basis you should with experience be able to work out your own rough averages. Why not go out and try for yourself?

The accuracy of some corrections is disputed,Tranter's corrections make adjustments for fitness and fatigue. For example, if Naismith's rule estimates a journey time of 9 hours and your fitness level is 25, you should allow 11.5 hours. It takes no heed of the slowing influence of heavy loads, fatigue, rest stops, delays caused by tricky navigation - in poor visibility perhaps, adverse weather such as a strong headwind, or the ground underfoot.Add bogs, scree, undergrowth, snow, steep gradients (both going up and going down), a heavy pack, some basic scrambling, a crosswind, a group of mixed abilities, and the obligatory photo stops to the mix and your confident Naismith timings are likely to look a little ambitious.Stretched over a long hilly day that tireless 5km per hour is quite some pace, and unless you are a hill runner it is very much the minimum time, not the average!In practise then, Naismith's Rule should be treated just as the starting point - albeit a very useful one - for working out your timings.Later revisions to the rule have been made in order to account for some of the variables. This rule of thumb was devised by William W. Naismith, a Scottish mountaineer, in 1892. Naismith's Rule assumes that you are reasonably fit, walking on easy terrain, and not subject to adverse weather. For instance many walkers find they get on well the tweaks made by Eric Langmuir, author of the classic manual Every walk is different, and so is every walker.

UKH Articles and Gear Reviews by Dan Bailey He assumes the Langmuir 2013 recalls the Naismith's rule from 1892 in Except, that is, when it doesn't. You can show your support and with recieve rewards.Please help UKHillwalking continue to provide varied and free content by becoming an official UKH Supporter. In case you hadn’t noticed, Naismith’s rule states 300m ascent in 30 mins, which equates to crossing one contour line per minute – quite a handy way of remembering it.

So far, all we’ve asked is that you visit and interact with the site, but we are now in uncertain times. Additional adjustments for uneven or unstable terrain or conditions can be estimated by dropping one or more fitness levels. Registered number 07109104. So a walk of 7.5km with 200m ascent would be 1hr30mins for the distance, plus 20mins for the ascent = 1hr50minsSound simple? 0.12) = 23.4 min / km. Registered Office: 75 – 77 Colmore Row, Birmingham, B3 2AP This rule assumes a reasonable level of fitness, but Tranter’s corrections can but used to change the time to suit a particular level of fitness. You can show your support and with recieve rewards.
Naismith's rule helps with the planning of a walking or hiking expedition by calculating how long it will take to travel the intended route, including any extra time taken when walking uphill.

He estimated that you: allow 1 hour per 5km walked and 1 hour for every 600m ascended. Naismith's rule definition: a rule of thumb for calculating the time needed for a climbing expedition , allowing 1... | Meaning, pronunciation, translations and examples Devised in 1892 by the Victorian mountaineer William Naismith, this well known rule of thumb remains in common use today with only minor revisions.

Aitken (1977) assumes that 1 h takes to cover 3 mi (5 km) on paths, tracks and roads, while this is reduced to 2½ mi (4 km) on all other surfaces.For both distances he gives an additional 1 h per 2000 ft (600 m) of ascent.Langmuir (1984) extends the rule on descent. If you ever do a Mountain Leader or Navigation course, then you’ll have this drummed into your head. Well sadly in practice it does tend to prove too simple to be true.First off it should be noted that these are ideal on-paper timings, and that your actual on-the-ground time is likely to be subject to real world delays, factors that you need to make some attempt to account for when plotting each leg of your journey. Personally I tend to favour simplicity, and have found that an average of 4km per hour, irrespective of incline and terrain, does me reasonably well. VAT: GB 921644240. Naismith's Rule, allows an easy calculation of the time taken for a hill walk, for a reasonably fit and steady walker: 15 minutes for every kilometre of horizontal distance, plus 10 minutes for every 100 metres of ascent. Naismith's Rule is a formula that can be used when planning a hill route to work out - roughly - how long it ought to take. We need to look at new ways to ensure we can keep providing our content and features whilst maintaining our key aim of allowing free access to everyone.If you appreciate UKHillwalking then please help by becoming a UKH Supporter.Please help UKHillwalking continue to provide varied and free content by becoming an official UKH Supporter. Naismiths Limited is a limited company incorporated in England and Wales and regulated by the Royal Institution of Chartered Surveyors.


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