- #1

Adrianp

- 6

- 3

- TL;DR Summary
- By the linear distance and vertical difference

Hello guys,

I am not into this field and finished my college long ago. I am trying to find a formula to estimate the difficulty of a mountain route.

The input is:

D = linear distance between start and destination (as given by Google Maps) in m, km, whatever. Both points are considered at the same level when this distance is shown.

H = the difference between the destination height and start height. Taken from Google Earth, usually in meters.

Others:

- I just want like a general index of the given mountain path, reflecting the energy consumed. Like twice the distance for the same angle will double the score (index).

- I have noticed that the real paths are usually 20-30% longer than the straight line, we will ignore this for the moment as it can be adjusted in the end.

- It should be a general formula independent of other factors like person weight, path difficulty (rocky etc), just the parameters mentioned.

- Steeper slopes are obviously harder to climb. You can walk 10km easily horizontally but climb extremely hard 20m vertically. However, if you walk more you consume more energy too.

- When you climb steeper, you obviously adjust the speed. However, you perceive the climbing more difficult too.

I cant even figure out right now if it about energy, power, mechanical energy or whatever....

It all started when I had to climb a route 2km long straight line and 600m vertical difference and I found it difficult.

I want to know is the same energy like for 4km distance and 300m vertical difference for example.

I've tried something like D(istance) * sin A = D * H / Sqrt(D pow 2 + H pow 2) but its obviously not accurate.

Thanks

I am not into this field and finished my college long ago. I am trying to find a formula to estimate the difficulty of a mountain route.

The input is:

D = linear distance between start and destination (as given by Google Maps) in m, km, whatever. Both points are considered at the same level when this distance is shown.

H = the difference between the destination height and start height. Taken from Google Earth, usually in meters.

Others:

- I just want like a general index of the given mountain path, reflecting the energy consumed. Like twice the distance for the same angle will double the score (index).

- I have noticed that the real paths are usually 20-30% longer than the straight line, we will ignore this for the moment as it can be adjusted in the end.

- It should be a general formula independent of other factors like person weight, path difficulty (rocky etc), just the parameters mentioned.

- Steeper slopes are obviously harder to climb. You can walk 10km easily horizontally but climb extremely hard 20m vertically. However, if you walk more you consume more energy too.

- When you climb steeper, you obviously adjust the speed. However, you perceive the climbing more difficult too.

I cant even figure out right now if it about energy, power, mechanical energy or whatever....

It all started when I had to climb a route 2km long straight line and 600m vertical difference and I found it difficult.

I want to know is the same energy like for 4km distance and 300m vertical difference for example.

I've tried something like D(istance) * sin A = D * H / Sqrt(D pow 2 + H pow 2) but its obviously not accurate.

Thanks