In the Alpine region, alpine climbing routes often include, in addition to the degree of difficulty, the seriousness rating scale (German: Ernsthaftigkeit) that Markus Stadler designed for his climbing guide for the Wilder Kaiser area. This, similarly to the Adjectival Grade of the British scale or the Addition to Safety of the YDS scale, is intended to reflect the seriousness of a route in terms of belay level, risk of injury, and psychological demands. A very well protected route in the sixth or seventh grade in an easily accessible and well-protected climbing area can be climbed well by inexperienced alpine climbers, while a route of this difficulty in a secluded north face with moderate protection immediately places quite different demands on the climber. The E-scale is, therefore, listed in addition to the indicated difficulty. It is graded from E1 ascending to E6 and evaluated according to the following criteria. As with the difficulty grades, it is also possible to add a plus (upper limit) or a minus (lower limit) to the E-scale in order to achieve a finer gradation.
S = How well must the climber know how to use the variety of climbing protection?
R = How high is the risk of an accident or injury (especially if they have overestimated their fitness or technical ability)?
P = What demands are made on the psyche or mental abilities of the climber?
E1: Bolted, sport-climbing level protected route with small bolt spacing (no runouts).
S: sport climbing level, no additional protection required
R: very low, hardly any objective dangers or falls with serious injuries possible
P: very low
E2: Above average well protected route, good material available, only a little additional protection necessary, partly larger bolt spacing
S: basics of trad gear
R: low, falls with serious injuries unlikely, but possible in some places
E3: averagely protected route, additional protection is necessary but still relatively easy
S: average ability to place trad gear
R: dangerous falls possible, possibly objectively not completely safe
E4: alpine, poorly protected route, protection must be placed by the climber, including some difficult placements, available material often of poor quality
S: safe handling of trad gear
R: serious risk of injury in case of falls and/or objectively dangerous
E5: difficultly protectable route, some sections cannot be protected at all or with difficulties, long runouts have to be mastered
S: safe use of trad gear
R: possible falls with serious injuries in the difficult sections
E6: very serious route, where longer sections cannot be protected even in difficult pitches, potential falls will have fatal consequences
S: perfect use of all kinds of trad gear, even uncommon ones
R: dangerous route with a very high risk of accident
P: very high