What method is used for volume computations between adjacent stations?

The method of averaging end areas is commonly employed for volume computations between adjacent stations in surveying. This technique involves calculating the cross-sectional areas of the terrain at two different stations and then averaging these areas to estimate the volume of earth that lies between them.

The principle behind this method is that when calculating volumes, it is more accurate to take the average area rather than simply adding or independently calculating the areas. By averaging the end areas, you can create a more reliable estimate that accounts for the varying cross-sections between the two points. The volume is generally calculated using the formula that incorporates the average of the two end areas multiplied by the distance between them.

This method is particularly useful in grading and earthwork calculations, where understanding the volume of material to be moved is essential for project planning and execution. It effectively balances the differences between the end areas, ensuring that the computation reflects the true volume over the distance surveyed.