Grading Formula usingthe "Neville Grading System" 
The Grading System  Graded Trails 
THE NEVILLE HIKE GRADING FORMULA G = [Df + Ff] * [tW + (k * tC)] / 4 

Where in: Df = Day factor 
Ff = Facility factor 
tW = Total hike distance in km k = Constant factor of 0.0133 tC = Total of all ascents in metres 
EXPLANATION An explanation of the factors and constants used may help to explain the logic (right or wrong) of the formula. The basis of the formula is an average
person doing a 2 day hutted trail. 

Ff  FACILITY FACTOR Basic load as before equals 12 kg If the trail consists of day walks
from a central hut there should be no requirement to carry all your
kit, only the basics of food and water for the day plus the survival
items of warm or wet weather clothing, 1st Aid kit, etc. If the trail is a tented route then
quite apart from the additional weight of the tent itself (either total
or as a split load) there are additional items of stoves, pots, sleeping
mattresses, lamps or torches, fuel etc. 
k  CONSTANT This constant is intended to equate the metres climbed over the hike to an equivalent number of kilometres of fairly flat walking. It is widely written that for every 1 000'
(300m) of ascent then one should allow for one hours extra walking time.
Assuming that a comfortable flat walking speed equals 4km per hour this
means that a 300m climb is equal to 4km. 

SUMMARY John Neville 
The Grading System  Graded Trails 
Look for
trails by town (all countries in Southern Africa) in our Index of Towns: [a] [b] [c] [d] [e] [f] [g] [h] [i] [j] [k] [l] [m] [n] [o] [p] [q] [r] [s] [t] [u] [v] [w] [y] [z] 
For trails in one of
these countries, go to: Botswana  Lesotho  Malawi  Namibia  South Africa  Swaziland  Zambia  Zimbabwe 
http://www.linx.co.za/index.html

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All contents Copyright © 19962004 catlinx cc 962633023 Send questions and comments to the Pagemanager http://www.linx.co.za Date of entry: 1 July 1996 Updated: 2 January 2004 