トレイルデザイン-Appendix Y
YouTube と Sustainable Trails
「サスティナブルトレイルについて知りたい」と思っても、文字を読むのは面倒くさいという方は動画はいかがでしょうか？多くの地域で採用されているサスティナブルトレイルですが、マニュアルなど文章で紹介されたものは数多くありますが、動画となると多くありません。数少ないサスティナブルトレイル解説動画を紹介します。
Sustainable Trails Presentation
トレイルスーパーバイザーのグレッグさんよるサスティナブルトレイルプレゼンテーション！サスティナブルトレイルとコストに関するお話もあります。
4:57 What is Trail Sustainability
5:32 Trails that Survived the Flood
6:19 Trails that Failed During the Flood
7:20 Sustainable Grades
9:07 Grade Reversals
9:46 Steep Fall-Line Trail: Bad!
10:18 Contour Trails: Sustainable!
12:18 RMNP: Investments analyzed over the trail's life cycle
13:48 Case Study
15:16 Estimated Required Post-Flood Repair of Select OSPM Trails:
16:28 Where Do These Standards/Knowledge Come From?
19:03 Take-Home Lessons:
From Lemons to Lemonade: Creating Sustainable Trails -- An ELCR Webinar
トレイルデザインスペシャリストのマイクさんによるサスティナブルトレイルの作り方講座！
1:37 Section 1 Understanding Impacts
2:13 Natural Impact
3:59 User Impact
5:36 Fall line trails
7:32 Contour trails
9:22 Section 2 Trail Design
9:38 50 % Rule
15:10 Overall average % of grade for natural surface trails
23:59 Rolling Crown Switchback
28:37 Section 3 Trail Development
28:47 Full bench cut construction
32:55 Out slope
35:08 Great trails built with small equipment
37:01 Adding gravel to harden the trail
39:00 Armoring with plastic Grassy Pavers
42:46 Question?
Trail Design & Dynamics of Water
Appalachian Trail Conservancyのモルガンさんがアパラチアントレイルのデザインについて解説。これを見れば『Appalachian Trail Design, Construction and maintenance 2ed』を買わなくても済む？
0:33 A.T. Desired Condition
0:59 Trail Design Basics: Assess the Need
3:50 Trail Design Basics: Route Alternatives
5:14 Trail Design Basics: Field Work
5:45 Desired Trail Appearance
7:50 Trail Condition Evaluation: Soils
8:46 Trail Condition Evaluation: Conditions To Avoid(Deficiencies)
9:40 What Creates the Problems? "Water Behavior 101"
11:55 Trail Condition Evaluation: Thick Water vs. Thin Water
12:25 Trail Condition Evaluation: Rehabilitation vs. Relocation
13:48 Trail Construction Basic: Leading A Crew
15:50 Trail Construction Basic: Treadway Outslope & Backslope
16:35 Trail Construction Basic: Grade/Coweeta Dips
19:09 Trail Construction Basic: Drainage Spacing
20:23 Trail Construction Basic: What are Steps For?
20:54 Trail Construction Basic: Log Steps
22:17 Trail Construction Basic: Use of Crooked Logs for Steps
22:46 Trail Construction Basic: Check Dams & Stake Spacing
23:25 Trail Construction Basic: Rock Steps
24:27 Trail Construction Basic: Stream Ford
25:15 Trail Construction Basic: Waterbars
26:44 Trail Construction: Causeway vs. Turnpike
28:20 More Resorces
11 Principles of Trail Design
どこの誰の動画か詳細はよく分かりませんが、IMBAに準じた内容の動画です。
ちなみに"principles"は「原理」「原則」といった意味です。
1:20 1.Locate the track
2:18 2.Avoid the fall line
3:03 3.Use the 'half rule' to guide track alignment
4:06 4.Follow the 'ten percent average' guideline for sustainable grade
4:57 5.Maximum sustainable grade
5:50 6.Grade reversals
6:41 7.Outslope
7:42 8.Adapt track design to soil texture
8:35 9.Minimize user-caused soil displacement
9:33 10.Prevent creation of unauthorized tracks
10:42 11.Maintenance