AutoCAD Civil 3D :: Create Assembly That Give Volume Of New Shoulder Along Existing Road

Apr 10, 2013

I need to create an assembly that will give me the volume of a new shoulder along an existing road, as show in this picture.

I can easily make an alignment along my edge of pavement, and match the existing elevations, but I need to hold the cross slope constant AND the shoulder slope constant, and have the bottom of the shoulder slope to a target 2 feet off of my ROW.

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AutoCAD Civil 3D :: Sample Line Volume Report And Surface Volume Give Different Quantities

Jun 18, 2012

I'm working with TIN surfaces, doing cut/fill comparisons for a surface mine.

My volume surface statistics show a cut volume of 5167.22 cy and fill volume of 8456.18 cy.

The sample line group volume report show cumulative cut of 5527.67 cy and fill of 8465.56 cy.

What could be some causes of this disparity. All reference surfaces are built from points and use a non-destructive boundary.

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AutoCAD Civil 3D :: Building Assembly For Shoulder Widening

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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AutoCAD Civil 3D :: Digital Record Of Existing Road Lane Slope

Feb 6, 2013

Civil 3D 2012 (or Civil 3D 2013)

Without automation development, what is the procedure to get a digital record of the existing road lane slope?

I recommend the following:


Use the OverlayWidenMatchSlope1 rehab subassembly to build a corridor, targeting the existing road surface


Make a report using Corridor > Feature Line Report, reporting the Links to get the slope

Am I correct?

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AutoCAD Civil 3D :: Target Existing Surface Beyond Edges Of Road / Sidewalk?

May 15, 2012

if i want to target the existing surface beyond the edges of my road/sidewalk, should i use the link slope to surface subassembly at both ends? i want the model to test if in a cut or fill situation, and then target.

Civil 3D 2013 SP1, Win 7-64 bit

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AutoCAD Civil 3D :: Data Of Existing / Future Ground And Station On Profile Of Road

Dec 18, 2013

How to get automaticly data on the profile. See my road profile in attachment.

Now i have to manually write data of elevation of existing and future ground and distance.

i think that is possible automaticly, but i dont know how.

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AutoCAD 2013 :: Give Way Road Markings Are Much More / Smaller In Viewport?

Nov 6, 2013

In the attachment you can find a drawing of a roundabout.

why the give way road markings are much more and much smaller in my viewport? Also I can't see the letters A, B, and C in my viewport. Why is that and how can I fix this two things?

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AutoCAD Civil 3D :: Corridor Created Using A Primary Road Full Section As Assembly

Jan 31, 2013

I am using C3D 2013, I have a corridor created using a Primary Road Full Section as my assembly, I have all the slopes and ditching set, when I go to model the corridor the ditching is not showing correctly, only small sections of the ditching are showing when I know there should be more. I have the assembly setup to build the ditching when there is less than a meter fill, but will not work.

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AutoCAD Civil 3D :: Calculating Volume Using 2 Existing Surfaces?

Jun 9, 2013

I have create my surfaces and now need a volume between to two surfaces.  I created the surface by using the Surface/Create TIN Surface tool for both my OG and the surface after material has been imported.  I have gone to the volume dashboard and it will not let me add existing surface. How do I calculate the volume?

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AutoCAD Civil 3D :: Creating Surfaces From Existing Contour Map For Volume Calculations

Aug 30, 2012

I am working on a project, I was given a file with the contour already mapped out. I am tasked with finding volume of a fill I had to create. I made a 3-D polyline at the elevation I want my fill to start from and going down to my final grade. How can I make surfaces with my map. I do not have any files to make the surface off of. What is the easiest way I can make a layer, TIN has already been done but no surfaces are in the file.

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AutoCAD Civil 3D :: Create All New Existing Surface Over Existing Ground

Sep 28, 2012

I'm trying to create an all new existing surface over existing ground. I have a TIN surface of the EG, and I have drawn overlay splines that describe the new surface, but how to go about creating that design surface.

It is a compound surface, open on one end and closed all around on the other, somewhat like a half of a football stadium, but with an irregular upper edge because I am needing to figure out cuts and fills to manipulate the EG into this new surface without costly major terraforming. There is about 40-50' vertical elevation between the "field" and the upper rim with a generally constant 7-10 deg. slope all around. I'm just at a loss to figure out how to approach this project, and am quite new to Civil 3D.

Civil3D 2013
MacBookPro 17 - 2.4GHz Intel QuadCore i7 (Late 2011 build)
Microsoft Windows 7 64bit
350GB Bootcamp volume

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AutoCAD Civil 3D :: Model Road / Ditch Along Road

Aug 21, 2013

I need to model road with same elevation. But also need to model ditch along road which has a slope of 0.2%. how can i make a ditch with slope.

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AutoCAD Civil 3D :: Can't Create Intersection - One Or More Of Secondary Road Profiles Cannot Be Locked

Oct 1, 2012

I have made 11 successful intersections in my subdivision, but there is one that just won't work!

When I get to the point where I want to set curb return parameters, the dialog box pops up but there is nothing listed under the quadrants.

If i go ahead and try to make the intersection anyway, I get this message:  "one or more of the secondary road profiles cannot be locked".

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AutoCAD Civil 3D :: How To Create A Road File From Object - Pline / Spline

Sep 21, 2012

Basically I have 3dpolylines and some Splines. I would like to create a road file that uses the geometry of these objects to create a single line/crest of road file.

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AutoCAD Civil 3D :: Volume Bounded By Existing Surface And Design Surface

Dec 10, 2012

My goal is coming up with the volume bounded by the design surface and the existing surface. I don't have the design surface modeled yet.

Do i need to create alignment offsets?. Alignment 1 profile view is also attached. Then Alignment2.

What about starting with alignment1 profile view? Since I have created a polyline as the design profile ?

how do I shrink labels? Where is it in the settings ; the Align folder had been check.

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AutoCAD Civil 3D :: Create Volume Of The Trench?

Oct 3, 2013

I create surface, then i create alignement of pipe, pipe profile and assembly of the trench.

Then i created a corridor of the trench. Now i can not found out the way how to calculate the volume of the excavation

for the trench. i think that i should create a surface from the corridor of trench.

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AutoCAD Civil 3D :: Why Assembly Line Increasing After Existing Surface

Dec 15, 2013

I don't undrstand why my assembly line increased after the existing surface in cut and fill condition, it should be stop at the existing surface. due to this problem my cut and fill quantities is not coming accurate. I'm attaching the screens shot of section. I'm using civil 3d 2009 32 bit software.

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AutoCAD Civil 3D :: Modify Assembly - Some Of Existing Subassemblies Move

Oct 24, 2012

I've got several assemblys built for a road project. the problem is whenever i modify an assembly by adding a subassemby, some of the existing subassemblies move. they stay attached to the assembly but they disconnect from the part they were attached to. i can move them back so the assembly looks correct but when i rebuild the corridor chances are they show up wrong. i've tried 'move to' and just grabbing and snapping. i can eventually get it attached but not without trial and error. i'm running c3d2012.

Dell Studio XPS 9100
Intel Core i7 CPU 930 @ 2.8GHz
12GB Ram
64 bit
C3D 2012 SP3.0

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AutoCAD Inventor :: Find Interior Volume Of Assembly By Subtracting Assembly From Block

Apr 23, 2012

I am trying to find the interior volume of an assembly (when am I not?!?!) by subtracting the assembly from a block that surrounds the most of it.  Somewhere the assembly has a "leak" and I have been trying to use the Cross Section Analysis to track down where the inside lump is connected to the outside lump to be subtracted.  Is there a less time consuming way to dynamically drag a plane across and get cross sectional views?

Even better is there a simple way to animate the analysis plane moving across the block so I can hopefully just watch and pause it when I find a leak?

Inventor 2013 (SP2 Update 2), Windows 7 Professional (64-bit), SP1, Intel Xeon 3.07GHz CPU, 12GB RAM, NVIDIA Quadro 2000, Vault Basic 2013

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AutoCAD Civil 3D :: Create 3D Object That Gives Volume Info?

Feb 22, 2012

I created an enclosed "object" adding break lines to two different surfaces.

The blue surface shown on the attached drawing is a set of break lines added to "Surface A" and then the red is the other set of break lines added to "Surface B". I have already generated the volume enclosed within the surfaces by doing a surface to surface volume calculation.

My Question:I want to combine the enclosed volume created by Surface A & Surface B into a 3D "Block" that give me the volume information.

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AutoCAD Civil 3D :: Superelevation For 1-Lane Ramp (different Shoulder Widths)

Apr 3, 2013

 I'm attempting to use the Superelevation tool on an interchange.  I have 4, 1-lane ramps that I need to apply superelevation to.  The three issues I have (so far) are:

In the Calculate Superelvation Wizard...

1. In Roadway Type, I don't know what to choose, I'm leading toward Undivided Crowned (center Baseline ) because my assembly (as of right now) is set up as an undivided crowned roadway (with the crown on the west travel lane edge). Which Roadway Type I should choose (for a 1-lane Ramp with different shoulder widths?)

2.  Moving on to the the Lanes category doesn't matters.  I uncheck symmetric Roadway, hoping I can choose "0" for the number of lanes on the Left, or at least put the lane width down to "0" but can't do either.  I uncheck the Symmetric Roadway and it still makes everything symmetric (it acts as though it is still checked?) I only want to show a single 15' lane.  (I even tried to use undivided planar, and put both lanes at 7.5'each, but then I still have shoulder issues...)

3.  Move to the Shoulder Control.  Why doesn't it give me the option to do different shoulder widths?  On ramps it is very common (at least in Wisconsin) to have an 8ft shoulder on the right and a 4ft shoulder on the left.  How can I type in 2 different shoulder widths.

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AutoCAD Civil 3D :: Possible To Create A Specific Contour In Volume Surface

Mar 2, 2012

I created surfaces in Civil 3d 2011 for existing and proposed and I did a surface volume between them. Is it possible to create a specific contour in the volume surface that represents the fill volume elevation (daylight line I think)? My proposed surface is a flood water elevation and I need to define the boundary at that elevation.

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AutoCAD Civil 3D :: Create Volume Calculations From Spot Heights

Feb 13, 2012

What I would like to do is create volume calculations from spot heights. All i have is 4 rectangles with a 10m interval, nine elevations, no points or anything else.

What steps do i have to go through to make this possible?

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AutoCAD Civil 3D :: Create Elevation Label That Give Spot Elevation

Jul 11, 2013

I am trying to create an elevation label that will give me the spot elevation followed by the letters "TC" and then on the line below subtract 4 inches from the elevation followed by the letters "BC".  It's easy enogh to add the letters but the simple equation of elevation - 4 inches eludes me.

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AutoCAD Civil 3D :: Shoulder Subassembly - Target Width Alignment At Grade Break

Nov 5, 2012

I am trying to model a DOT project in a fashion that allows a corridor surface creation for not only the finished surface, but also the datum surface. This is a machine control project currently under construction. One of the DOT's typical sections includes a shoulder subassembly with a grade break in it. This particular assembly varies in width at the grade break. I would like to have the option for a target width alignment at the grade break.

See attached sketch.

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AutoCAD Civil 3D :: Create Volume Surface To Show Elevation Banding With Cut And Fill Ranges

Nov 12, 2013

I am working on a large park project.  I have a proposed and existing surface.  I have created a volume surface to show elevation banding with cut and fill ranges.  I need to create a drawing for someone who doesn't have civil 3d showing all the "cut" areas.  They really want a boundary of hatch.  What is the best way to do this after I change my analysis to -30 feet cut to 0 feet cut.

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AutoCAD Civil 3D :: Generate Volume Report For Bounded Volume Surface?

Oct 2, 2012

Is there a way to generate a volume report for a bounded volume surface?

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AutoCAD Civil 3D :: Cross Section Volume Vs Volume Surface

May 31, 2013

I've read a few threads on this way back but cannot locate them. I have two surfaces and create a volume surface and it reported the volume as 493 cy. I then ran some sample lines at 25 foot interval and the total volume is reported as 964 cy.

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AutoCAD Civil 3D :: SSA Storage Volume Is Double Of Pondpack Volume

Apr 24, 2013

I want to use it as my primary hydrologic and hydraulic modeler.  It only makes sense.  Well, I got the program to work and had things linked in and was able to route a storm through the network.  But when I routed the storms, I had to model double the storage that i expected.

So I went back to the program I'm familiar with - Pondpack by Benltey - and designed the same system I routed in SSA in that program - and got the storage volume that I would expect for a site of this size - about 2 acres.

Is there possibly a setting that I'm missing that makes my outlet structures route slower or less than they should?  Or is there some other reason that a system would give this kind of inflated need for storage?

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AutoCAD Civil 3D :: Volume Boundary Creates Incorrect Volume

Feb 25, 2013

I have an issue with using Bounded Volume or Adding a Boundary to Volume Surface things so bad... = incorrect volumes.. sometimes extremely incorrect.. I understand that the surface rectangle when a boundary is added but this could be horrible if not checked.

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AutoCAD Inventor :: Creating Separate Assembly Out Of Various Component Parts In Existing Assembly

Jul 10, 2012

I'm looking for the best way to create a separate assembly out of various component parts in an existing assembly so that the whole thing can be placed in an assembly as you would a part, I know it's possible to demote components within an assembly but are there any other methods similar / better ?

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