Reconsider route ratings

[aardjon]

Currently, the route rating displayed in the app is more or less the teufelsturm one. Sandsteinklettern ratings are "somehow" mapped to this scale in way that their intermediate values have a larger impact than the teufelsturm ones.

What to do?

The rating systems vary heavily between different sources. It would be great to develop our own scale to use in the mobile app, which is independent of a certain external system, and to map external ratings in a way that all of them are equally "important".

External rating systems

Mobile App

Scale of seven grades, from -3 (bad) to 3 (great).

Teufelsturm

Scale of seven grades, from "---" (bad) to "+++" (great) and "" as neutral rating.

Sandsteinklettern

There are multiple scales for different aspects:

• General recommendation: Five grades ("Müll", "Geschmackssache", "ok", "lohnend", "sehr lohnend) with the possiblilty to not rate at all
• Humidity: Five grades with the possiblilty to not rate at all
• Safety: Six grades with the possiblilty to not rate at all

Currently, only the general recommendation is taken into account.

[Headbucket]

I don't really have an idea for the general rating problem (seven grades vs five grades). Maybe seven grades for the general recommendation are too much?

However, I could easily imagine introducing a separate rating specifically for the security aspect. I've already seen this type of rating on some other platforms:

• steinfibel.de has seven grades for safety (https://www.steinfibel.de/sachsen/index.php)
• The 'Sächsische Ernsthaftigkeitsbewertung' contains of five grades for safety. I really like that scale. (https://www.dav-dresden.de/component/phocadownload/category/13-kletterfuehrer-johanniswacht?download=35:e-bewertung-elbsandsteingebirge)