20%
= 1.2
Instead of this: 495 x .10 = 49+ or 50 495 + 50 = 545.
Do this: 495 x 1.1 = 544+ or 545.
37
Your rolling stock requirements to operate the railroad are 545
boxcars, 436 gondolas, and 109 flatcars, or a grand total of 1,090
cars. Now you must determine how many road engines are required to
pull them over the railroad.
Figure 3.1. Determining Turnaround Time.
3.6. ROAD ENGINES
The number of road engines required for any given railway
division may be found by using the following formula.
where TD = Train density
RT = Running time
TT = Terminal time
24 = Number of hours per day
2 = Constant for twoway traffic
1.2 = Constant allowing 20 percent reserve
Previous Page
