วันศุกร์ที่ 4 พฤศจิกายน พ.ศ. 2554

Forest Service Road Maintenance Series: Smoothing and Reshaping the Traveled Way

Forest Service Road Maintenance Series: Smoothing and Reshaping the Traveled Way - USDA Forest Service 2002 - Video VH-416D - Provides detailed step by step processes for smoothing and reshaping crowned, insloped and outsloped roads and transition sections. Stresses that by facilitating proper water drainage, a well-maintained traveled way protects the road, the driver, and the environment.



http://www.youtube.com/watch?v=nTEfXsDqdUg&hl=en

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