Spectra-precision Survey Pro v4.5 Recon and Nomad Reference Manual User Manual download pdf (Page 412)

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Survey Pro Reference Manual

R-404

The Widenings Card

Roads Edit Roads ( New… or Edit… ) Widenings.

The Widenings card of the New Road screen is used to add or edit

widenings.

A widening is a section of a road that changes in width,

but does not necessarily require any new templates. The

road width is adjusted by changing only the width of the

first segment of the template that leads into the

beginning of the widening. Any additional segments,

like those that may describe a sidewalk or ditch, are not

adjusted.

The following rules must be considered when adding a

widening to a road:

• A widening must have a starting station and an

ending station or a length.

• Left and right widenings are separate and

independent of each other.

• The start and end stations must occur within the boundaries

of the alignment.

• The starting station must occur before the ending station.

• The beginning of a widening must match the width of the

previous widening or template.

• The end of a widening must match the next template or

widening unless it is the last element in the road.

• The beginning or ending of a widening cannot occur within

the boundaries of another widening, but the beginning of one

widening can occur at the same station as the end of a

previous widening.

• Widenings are always positioned by their start station.

Add… : When a widening or <End> is selected from the L or R

columns in the Widenings card, this button opens the Add Widening

screen, which allows you to add a widening to the same side of the

road that was selected.

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