Fundamental dissertation on the curvature of footpath (1)

its humane radius according to a change of the direction

Abstract

Various wards have been said as to the necessity of human scales in a landscape design. But we can hardly find the numbers applicable to our design.
We have also many assertions and researches about the forms of human footpath, put we are scarcely possible to find its concrete numbers. This dissertation is one of the human scales about the forms of human footpath applicable to our landscape design. This is a research of human radius in proportion to the change of direction. Here are a few example which are surveyed as in Fig. 1-9, but from these materials, I can reduce the following equation.
39-δ=13.5 log (R-5.8)
R = curve redius, its unit: meter
δ=directional angle, its unit: degree
From this equation, I can easily have Table 2. An example, the sharp corners of the footpath being made round, may be shown as in Fig. 13 by the practical application of the above-mentioned eqnation or Table2.