Since tourist have to stay on the trail, you first have to calculate the area in square meters of the entire trail. Presume it is just a very long rectangle. Then imagine each tourist is a circle with a diameter of 1 meter.
So how many 1 meter diameter circles can you fit in the imaginary rectangle ? Then you have to multiply number that by 0.80 because 20 % of the passage will have natural and man-made obstacles. Then you have to consider are there wheel-chaired tourist. And is the path one-way or two-way or three-way. And you have to figure in how many restrooms you have, how fast the tour moves. And how many emergency exits are there ? Or if there is a "teleferico" or elevator. And with any math #, you just have to multiply or divide the traditional pi number to get a number that sounds logical. The number always comes out to be around 100, plus or minus one. David Locklear
