I would like to calculate the walking time on existing paths in ArcGIS (hiking trails).
I have a dem of my area (30px cell size) and I consider that the slope is the main factor which affect the walking speed. When the path is uphill, the speed is slower so the walking time is higher and when the path is downhill the speed is higher and the walking time is lower.
I have read about Tobler's hiking function which calculates a vertical factor table ( first_column slope_degree, second_colum time(in hours) to cross 1 meter)
TIME (HOURS) TO CROSS 1 METER =0.000166666*(EXP(3.5*(ABS(TAN(RADIANS(slope_deg))+0.05))))
but I can not understand how to use to in my case. Is there any idea?