AutoCAD Civil 3D :: Custom Automatic Curve Widening
Oct 16, 2012
Looking for a non-AASHTO curve widening formula to calculate automatic curve widening for an alignment? I'm trying to use our Agency curve widening formula which is a function of curve radius and central angle.
I'm not sure if it is even possible to use the central angle of the curve for calculating widening, or how one would go about using a non-AASHTO CW formula.
Attached is the curve widening formula that needs to be used. L will be a constant here.
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Oct 22, 2012
there has used a non-AASHTO curve widening formula to calculate automatic curve widening for an alignment? I'm trying to use our Agency curve widening formula which is a function of curve radius and central angle.
I'm not sure if it is even possible to use the central angle of the curve for calculating widening, or how one would go about using a non-AASHTO CW formula.
Attached is the curve widening formula that needs to be used. L will be a constant here.
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Sep 29, 2012
Can we produce a Horizontal curve table like the attachment Table 1 and i have another queries could Civil 3d Produce a table like the attachment Table 2 i know i can get this table by lisp or macros.
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Mar 23, 2012
I am having a problem with an overlay and widening C3D 2012 project. The sub assembly I have chosen is processing with the corridor datum surface cutting into the existing road surface, as would happen with a “milling” section (which I don’t want), I need it to overlay onto the existing surface only, with a nominal minimum thickness of 4” . I think this sub assembly is drawing the datum surface from the datum point of the widening on one side to the datum point of the widening on the other side, not sampling the "bottom" of the overlay surface.
See attached screen shot. Also attached are screen shots for some of the sub assembly and corridor parameters for my current settings. I am using the “overlaywidenmatchslope1” and “basicsideslopecutditch” subassemblies.
I have tried changing the sample point offsets and the insert point offsets without fixing this problem. I have not added any additional alignments for saw-cutting yet as I am trying to keep it simple until I get the assembly to process correctly with a fixed width.
I looked at trying the “overlaywidenmatchslope2” subassembly, but it is for non-crowned roads and would not work for this project. Are some of my parameters wrong? Is there another subassembly that I should be using?
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Jan 24, 2011
Is it possible to make the widening get the exact offset to the spiral / clothoid. All I get is a linear line as shown in the picture.
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Aug 5, 2013
I have created a widening then created an 11-foot offset from the widening for some reason I cannot create a 22-foot offset or an d11-foot from the first offset. I can go as high as 22.5 but no more. There are no curves in the alignment only linear tapers. why I cant get to 22-feet?
Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram
64 Bit Win7 OS
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May 3, 2012
I've used the OverlayWidenMatchSlope1 subassembly to widen a new travel lane using the existing carriageway crossfall then I try to create another lane using the same assemble following the same slope but the insert point always starts on the existing ground rather the new levels from the first new widening lane.
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Aug 12, 2013
I am overlaying and widening an existing road, however the assembly is not behaving as I would like it too. Here is the cross section below, the widening, overlay and day lighting portions appear correct, how the Datum surface is off.
DATUM SURFACE - The datum surface is not following the existing ground in between the two road widening pavement portions. You can see the datum surface as a red line connecting the two paved widening below the existing crown of the road. I would expect the datum surface to follow bottom links of the overlay as well up through the crown, but this is not the case.
EARTHWORKS CUT/FILL SURFACE - The earthworks surface shows that the area between the existing crown and the unexpected datum link is being calculated cut/fill (cut presumably) which it shouldn't be.
ASSEMBLY BEING USED: Perhaps I am misusing the subassemblies, or link codes need to be modified.
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Oct 26, 2012
Having issue with the intersection tool for a road widening with turn lane with new roadway intersection. Not repaving entire existing roadway, sawcutting 2' into lane then paving new turn lane. Do most people use intersection tool for road widening, or is it strictly used for new roadways.
Civil3D 2013
Windows 7, 64 bit
Intel i7 2600 @ 3.40Ghz
16 GB RAM
Nvidia Quadro 600
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Jul 13, 2013
I'm working on a windfarm access road (5m wide with widening at bends to 8m) and I need to identify the areas of widening.
I've got the centreline alignment and created the 2.5m offsets to each side. I have also created widening on the insides of the bends using the widening tools and used a linear taper at entry and exit. I now need to hatch up the portions where the road has been widened to demonstrate compliance with the specification and the only easy way I can see is to export to autocad and use the hatch tools (not tried to hatch between alignments).
Whilst this works it isn't dynamic so if the alignment is adjusted the widening alignments are also moved but the hatching remains.
IDSP Premium 2014 (mainly Civil 3D 2014 UKIE SP1 & Infraworks with some limited 3ds Max Design)
Win 7 Pro x64, 256Gb SSD, 300Gb 15,000 rpm HDD
16Gb Ram Intel Xeon CPU E5-1607 0 @ 3.00GHz (4 CPUs), ~3.0GHz
NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600
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Mar 21, 2012
Why in LR4 is the Tone Curve default set to Custom with a contrast lowering curve? I would like the default to be linear, but I can't remember how I set that up in LR3.
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Feb 1, 2013
I am building an assembly for a shoulder widening. the sholder is 5' paved plus 5' stabalized tying to existing grade at a 4:1 slope. The two shoulder sections are showing up in the cross section but the tie-down is not. I have checked the target and it is set properly to the existing ground.
See below.
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Apr 18, 2012
Im using civil 3d UKIE 64bit, having a serious problem with adding a lane widening to an offset alignment. It is a straight alignment approx 200m length, but when i enter the parameters that is asked, at the end it says no solution!
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Jun 4, 2013
I need to create an assembly where the median width varies , I already created the alignment, profile,corridor,section with the design level. Also I have created the assembly with fix width. Now in the middle of my road the median is getting bigger ,Its possible to link the median with a polyline or another alignment were it change the width ?
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May 27, 2013
Althout I have created the widening on my aliment and used a designer critery on my corridor, I can't achieve that the corridor use the widenig on the curves.
I need that the corridor generate the widening on the curves, I can't stake the corridor without widening.
Please see attached.
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Mar 7, 2013
I'm looking to make an assembly to follow the crown of the existing roadway which is to be milled and overlayed. In addition to being milled and overlayed there will be a curb bumpout which will be full depth pavement. The roadway does not hold a constant crown at 2%, it varies which is why I would like it to mimic the existing roadway cross slope. What would be the best way to go about making an assembly to model this. I have attached an image so that you may get an idea of the situation. I have a curb gutter line which I would like the assembly to target in both width and elevation. The single slanted hatch is mill and overlay and the double slanted hatch is full depth pavement (widening).
C3D 2012
Win 7 x64
8 GB Ram
Quadro K4000
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Dec 31, 2013
I have ran an analysis and SSA gave me Error 607 on the report. It says "Inlet A9 gutter capture curve is not a valid curve."
A couple things I did different from the video lectures...
I selected user define for the Tc to figure out Q. i computed those manually.
For the Inlets I have selected Maximum Capture Cutoff.
There are some inlets in this model I created that do not capture 100% of the flow so i created conveyance links to account for the bypass flow.Not sure why is not recognizing the Curve?
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Jan 8, 2013
I made a custom linetype to represent a pipeline. The line is abbreviated by 5 letters. My problem is when I reach and curve in the pipe (an elbow), the text string does not follow the curve. It remains straight for the remainder of the text. Is there a way (autocad 2013) to have the text follow the path of a curve?
edit: I saw one similar topic from 2008 in this thread: [URL] and the best response there is the one posted by eldon where you break the code down to each letter. Still, the picture in eldon's post makes the text a bit jagged. Have any changes been made to AutoCAD since this post that make this easier?
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Mar 28, 2008
As you see in the picture I have a subdivision that follows a curving road, and therefore all the lot lines also follow the road. This is unfortunate, as I have been creating label styles 1 by 1 for left, center, right, for every angle of line. Is there a way to get your label to go parallel with the line automatically?
What I am thinking of is with structures, there is that circular grip that rotates the structure, is there something similar to this with labels? or must i keep grinding away making the labels one by one in their separate degree intervals.
Right now I have 33 label styles.... and I am not even 1/4 of the way done.
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Oct 9, 2008
We are in the market of switching software programs (from JDS Alignment-a database driven program) for stationing alignment centerlines for pipelines. We currently run Civil 3D 2009 and Map 09. Carlson claims that their software can do this, but we'd rather not spend the extra money if we already have the functionality built into our existing programs.
We are looking for a program (or a function in Civil 3D 2009 and Map 09-similar to the Fieldbook functionality) that labels interference crossings, appurtenances and other pipeline, utility and topographical features based on a shot code. I attached a DWG. that shows how we want it to look, and the types of features we want stationed.
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Jan 2, 2014
I am trying to get civil 3D to automatically create layers similar to ones already created. For example-
Using Description keys I am inserting survey points which automatically create layers for each type of point. e.g. p_building. I would also like a second layer to be created called l_building (for building lines) when the p_building layer is created.
I realize I can create the layers and save as the drawing template but this is not a neat solution as you have to add every possible line layer (l_??) and then you will have a lot of empty layers as not all points are collected on each job.
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Aug 7, 2013
I attached 3 pictures describing my problem.
On the first one you can see the feature lines i'm about to grade. The closed line is a pond and the two lines on the right is a riverbed. The area between them is just land.
On the second picture you can see a part of the surface i need to get by grading. I need the pond, riverbed and land to be one surface.
On the third picture you can see what happens, when i try to grade the riverbed under the same grading group. The pond surface disappears while the grading stays.
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Dec 9, 2013
create a label style for cross sections that will label the travel way in the run:rise format and will label fore and back slopes in a percent format. I can figure out how to make them all one or the other, but am having trouble getting them to reflect correctly based on where they are attached.I am having trouble coming up with the actual expression or you can do it thru code set styles, but regardless of settings that I change nothing on the cross section view changes.
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Jul 1, 2012
As survey data collectors now come with cameras intergrated, it would be very useful to be able to have a way of hyperlinking the imported survey points to the images. Images are normally named by the survey point number that they are associated with.
Can Civil3D import points and automatically have the hyperlink field of a COGO point populated?
Can this be achieved through the survey database? Or maybe via a point-file with UDP's?
Civil3D 2014 - Windows7 64bit
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Oct 19, 2009
I am trying to figure out where to set the Automatic Surface adjustment for a structure in a pipe network. Right now I have it set to true but I would like to change that to false.
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May 13, 2013
If I have calculated the superelevations and then edit the alignment (for example,I modify the length of spiral), the superelevations doesn´t recalculate. Why?
The guitar (superelevations) in profile view is old. If I load again the style profile view, the data are the same about superelevations.
Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
nVidia Quadro 2000.
Win 7 Pro 64bit
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Dec 7, 2012
I am having an issue copy and pasting text. Whenever I copy text from a source (word, another dwg) and paste it into a new dwg, it all comes in uppercase. Also everything i type in a new MTEXT is all caps.I do not have caps lock on.
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Apr 27, 2012
Is there a way to have a block (called test, for arguments sake) within this block we have text (attribute / fiield or whatever).
Now I have an alignment that has stations set every 10 units and on those stations I have inserted the block "test" as part of the alignment label style.
I can get the block inserting correctly, rotation the direction I require etc but what I need is for this block to report the station number.. ie 10, for the first 20 for the second and so on.
Is this possible?
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Nov 13, 2012
I have my automatic save turned on and set to 10 mins. I can visual see Civil automatically saving (as I have to wait a few seconds for the process) but it is not creating the temporary files.
I used to work fine, and I can see the last file that was created - a couple of weeks ago, but now it has just decided to stop creating these temporary files.It really makes this option useless if there is no temp file to get my lost information from when I crash.
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Nov 13, 2012
How i can Set Automatic Height in the Sheet Profile View ?
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Dec 27, 2013
I'm getting a command line message 'no solution found' when I try and create a slide line in teh Parcel Layout Tools. I have my site boundary and I'm using it to get my reference angle.
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