Balance

Use the Balance option to balance out the height differences between the long section terrain and the alignment. This is useful for preliminary balancing of earth works.

The balance is based only on height differences (effectively the area calculated from height by chainage as shown in the view) between the alignment and the terrain. At this stage the road cross section is not taken into account. It is, however, useful as a guide to how the actual volumes will balance.

Note:   The Report Window displays the suggested distance to balance the alignment and the cut and fill volumes.

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Instructions

• Select Iroad menu
• Select Edit menu
• Select Balance option

You are transferred to the long section window.

Select the natural surface section.

Select the alignment. This refers to the vertical alignment.

The suggested alignment shift is generated and highlighted. The Report Window shows the suggested distance to shift the alignment to balance the cut and fill. You will be asked whether or not to keep the suggested shift.

You can keep shifting the alignment until the heights are balanced. When this occurs, the Report Window displays the following message

"Alignment to be shifted 0.000 metres to balance"