Figure 4. Relationship between Poultry Producing Bands 

 and Firm Area with Density Constant 



domly selected points around Concord were used to derive an equation. 

 The equation is: 



RM = -1.534 + 1.351R 

 where RM is the road mileage and R the radial distance. This equation 

 has a negative intercept value as a result of the extreme concentration 

 of roads in the immediate vicinity of the center. Because of the negative 

 intercept value, the above equation is used to derive all road mileages 

 for radial distances in excess of ten miles. 



For radial distances of ten miles or less the following equation is 

 used: 



RM rr 1.196R 

 where RM is the road mileage and R is the radial distance. Table 13 

 gives the radial distance and corresponding road mileage from the cen- 

 ter or mill location to the average location in each of the bands at each 

 density level. 



34 



