Test Case and Sample Products 



The optimization program was tested to com- 

 pare computational results with a cruise track 

 actually fol lowed during a survey — FR V Oregon II 

 cruise 55, 5-29 November 1974. 



West Delta 



The 126 stations sampled during cruise 55 

 for the West Delta area were entered in the order 

 they were sampled (Figure 4), and the total dis- 



tance (in grid units) was calculated to be 254. Each 

 grid unit was equivalent to approximately 

 4.6 km; thus, the total distance was about 1,176 

 km. 



Eleven computations were performed on these 

 stations by the optimization program, and a 

 minimum length of 233 grid units (approximately 

 1,078 km) occurred three times. It can be said with 

 confidence the optimum tour (Figure 5) rep- 

 resented an 8.3% improvement over the actual 

 cruise track. Distances were calculated from the 

 center of each subsquare; therefore, the actual dis- 



30.5 



30.0 



•04 



29.5 



29.0 



28.5 

 89.5 

 EAST ORIGINAL TOUR 



89.0 



88.5 



88.0 



87.5 



Figure 6.— Actual cruise track followed for East Delta area, FRV Oregon II cruise 55. Every fifth station is labeled. Station numbers 



listed at lower left are those not included in optimization calculations. 



712 



