OPTIMUM ROAD SPACINGS 

 FOR. HARVESTING 



The development of cost equations required the identification of all of the 

 component costs involved and the variables affecting these costs. The objective 

 was to obtain the minimum cost of log removal as a function of the controllable 

 system variables. 



In every case, the removal of logs involves several processes including: 

 Roads and Landings: 



1. Moving- in of construction equipment 



2. Planning and layout of roads and landings 



3. Construction of roads 



4. Construction of landings 

 Skidding or Yarding: 



1. ^toving of skidding equipment 



2. Setting up of equipment for each operation 



3. Skidding of logs 



The costs associated with the activities listed above are the function of several 

 variables. These costs and variables are listed below: 



I. Cost to move in aonstruation equipment 



C^ = function of: 



1. Distance moved 



2. Type of equipment moved 



3. Moving method used 



3 



