Spectra Precision Survey Pro v4.5 Ranger Reference Manual - Manual (Page 418)

Survey Pro Reference Manual
R-410
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