Design and construction of forest access roads

St. George, D. Seumas

Design and construction of forest access roads

Date

1990

Authors

St. George, D. Seumas

Publisher

University of New Brunswick

Abstract

F o r e s t a c c e s s roads have been e v o l v i n g over the past t h i r ty y e a r s from crude p o r t a s h roads to heavy duty haul roads. As loads and t r a f f i c d e n s i t y have i n c r e a s e d t h e r e has been a r a p i d ly growing requirement f o r the a p p l i c a t i o n of modern e n g i n e e r i ng methods and procedures. The i n c r e a s i n g loads have c r e a t e d an on going demand for more s t a b l e subgrades and smooth and durable s u r f a c e s . As well geometric requirements based on horsepower demand and safety have been c a l l i n g for longer r a d i u s c u r v e s and f l a t t e r grades. A l l of this w i t h i n the c o n f i n e s of very t i g ht monetary budgets. This has put a t e r r i f i c burden on the f o r e st i n d u s t r y and the optimal r e s o l u t i o n of these problems can only be a c h i e v e d through intense a p p l i c a t i o n of better engineering s t a n d a r d s.