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Mountaineering Difficulty Levels - INI

Mountaineering Difficulty Levels is a standard Japanese classification system that evaluates climbing routes using two axes: physical fitness level and technical difficulty. The physical level is calculated from 1-10 based on standard course time and elevation gain, while technical difficulty is represented by letters A-E indicating trail conditions and hazards. This system enables objective difficulty assessment beyond traditional subjective classifications of beginner, intermediate, and advanced, allowing climbers to choose routes appropriate to their abilities.

mountaineering difficulty grading trekking mountains outdoor safety 
[item.physical-level-1]
code=P1
slug=physical-level-1
name=Physical Level 1
description=The easiest physical fitness level.
category=physical
level=1
overnight=日帰り可能
routeFactor=10未満
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-2]
code=P2
slug=physical-level-2
name=Physical Level 2
description=A relatively easy physical fitness level.
category=physical
level=2
overnight=日帰り可能
routeFactor=10〜20
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-3]
code=P3
slug=physical-level-3
name=Physical Level 3
description=A moderate physical fitness level.
category=physical
level=3
overnight=日帰り可能
routeFactor=20〜30
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-4]
code=P4
slug=physical-level-4
name=Physical Level 4
description=A relatively challenging physical fitness level.
category=physical
level=4
overnight=1泊以上推奨
routeFactor=30〜40
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-5]
code=P5
slug=physical-level-5
name=Physical Level 5
description=A challenging physical fitness level.
category=physical
level=5
overnight=1泊以上必要
routeFactor=40〜50
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-6]
code=P6
slug=physical-level-6
name=Physical Level 6
description=A very challenging physical fitness level.
category=physical
level=6
overnight=1〜2泊以上推奨
routeFactor=50〜60
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-7]
code=P7
slug=physical-level-7
name=Physical Level 7
description=An advanced physical fitness level.
category=physical
level=7
overnight=1〜2泊以上必要
routeFactor=60〜70
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-8]
code=P8
slug=physical-level-8
name=Physical Level 8
description=A very advanced physical fitness level.
category=physical
level=8
overnight=2〜3泊以上推奨
routeFactor=70〜80
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-9]
code=P9
slug=physical-level-9
name=Physical Level 9
description=An expert physical fitness level.
category=physical
level=9
overnight=2〜3泊以上必要
routeFactor=80〜90
skillsRequired=
physicalRange=
technicalRange=

[item.physical-level-10]
code=P10
slug=physical-level-10
name=Physical Level 10
description=The highest physical fitness level.
category=physical
level=10
overnight=3泊以上必要
routeFactor=90超
skillsRequired=
physicalRange=
technicalRange=

[item.technical-level-a]
code=TA
slug=technical-level-a
name=Technical Level A
description=Well-maintained trails suitable for beginners.
category=technical
level=A
overnight=
routeFactor=
skillsRequired=["Basic climbing equipment"]
physicalRange=
technicalRange=

[item.technical-level-b]
code=TB
slug=technical-level-b
name=Technical Level B
description=Requires some technical skills, suitable for intermediate climbers.
category=technical
level=B
overnight=
routeFactor=
skillsRequired=["Climbing experience","Map reading","Orienteering recommended"]
physicalRange=
technicalRange=

[item.technical-level-c]
code=TC
slug=technical-level-c
name=Technical Level C
description=Involves chains and ladders, requiring technical skills.
category=technical
level=C
overnight=
routeFactor=
skillsRequired=["Map reading","Orienteering","Physical strength for chain sections"]
physicalRange=
technicalRange=

[item.technical-level-d]
code=TD
slug=technical-level-d
name=Technical Level D
description=Difficult rock ridges and scree fields requiring advanced technical skills.
category=technical
level=D
overnight=
routeFactor=
skillsRequired=["Map reading","Orienteering","Route-finding","Balance techniques on rock, snow, and chains"]
physicalRange=
technicalRange=

[item.technical-level-e]
code=TE
slug=technical-level-e
name=Technical Level E
description=Highest difficulty requiring specialized technical skills and experience.
category=technical
level=E
overnight=
routeFactor=
skillsRequired=["Advanced route-finding","Judgment skills","Rope work"]
physicalRange=
technicalRange=

[item.beginner-grade]
code=BG
slug=beginner-grade
name=Beginner
description=Level suitable for beginner climbers.
category=general
level=
overnight=
routeFactor=
skillsRequired=
physicalRange=1-3
technicalRange=A-B

[item.intermediate-grade]
code=IM
slug=intermediate-grade
name=Intermediate
description=Level suitable for intermediate climbers.
category=general
level=
overnight=
routeFactor=
skillsRequired=
physicalRange=3-5
technicalRange=B-C

[item.advanced-grade]
code=AD
slug=advanced-grade
name=Advanced
description=Level suitable for advanced climbers.
category=general
level=
overnight=
routeFactor=
skillsRequired=
physicalRange=5-7
technicalRange=C-D

[item.expert-grade]
code=EX
slug=expert-grade
name=Expert
description=Highest level requiring specialized technical skills and experience.
category=general
level=
overnight=
routeFactor=
skillsRequired=
physicalRange=8-10
technicalRange=D-E