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XS PROJECT SCALE
While NCDOT plans and profile sheets use Project Scale to adjust the size of
"non-true" dimension elements for the various survey and plot scales,
there was not a way to automatically do this with Criteria. These "non-true"
dimension elements include text size, some cells scale, and linestyle scale.
Roadway Design has three (3) valid cross section sheet scales. All are available
doing the Geopak Cross Section Sheet Composition process and each cross section
sheet are laid out with the scale value set in the XSSL file. For example, below
in figure #1, the slope, elevation, and superelevation texts are legible when
layout with a scale of 5 half/10 full (75' left and right). In figure #2, the
same texts are not legible with a cross section sheet layout scale of 10 half/20
full (150' left and right).
There are more than 40 variables used to control the various text sizes and
text offsets. To simplify and standardize the process, a new "Project Scale
for Cross Section" mechanism has been developed. Adjustments are made to,
but not limited to, the following type of cross section texts via Criteria input
files:
- slope text height
- slope text width
- slope text offset
- elevation text height
- elevation text width
- elevation text offset
- superelevation text height
- superelevation text width
When Criteria variable "XS Project Scale" is defined (preferably
right under the template configuration definitions) in your Criteria input as
any scale value greater than 1, then the mentioned text types will automatically
be adjusted in size.
Recommendations
For bridge projects or dual lane roadways (-Y- Lines):
- Define "XS Project Scale" 5 (no equivalent metric scale established
to date)
- Layout cross section sheets at a scale of 5 half/10 full (75' left and right)
For interchange projects or divided facilities (median):
- Define "XS Project Scale" 10 (closest equivalent metric scale
is 125)
- Layout cross section sheets at a scale of 10 half/20 full (150' left and
right)
For projects in the mountains with drastic differences in elevation per cross
section:
- Define "XS Project Scale" 20 (closest equivalent metric scale
is 250)
- Layout cross section sheets at a scale of 20 half/40 full (300' left and
right)
Even though the cross section scale is completely linear in equation, it is
not recommended that an odd scale such as 7.5 be used. In addition, if the cross
section project scale is not defined, then the default text values are used.
No adjustments will be made, as it has always been.
In addition to adjusting the size of text, if cross section project scale is
defined, then font 11 (for legibility reasons on half size plots) will be used
as the standard text font automatically. While there are existing projects in
production with various cross section fonts and text sizes, the Microstation
active font and various 40 plus Criteria variables are still operative and applicable.
Eventually, this transitional time period will end and all text sizes and text
fonts will be standardized. Therefore it is prudent, when possible, to use the
cross section project scale and/or font 11 as often as you can, as new cross
section are being created.
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