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
12GB RAM

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AutoCAD Civil 3D :: Sidewalk Not Following Target Width Alignment?

Mar 26, 2012

I have a variable sidewalk width and would like my corridor to follow sidewalk as defined by Target Alignment for Sidewalk width (polyline). My sidewalk is merging at ends with roadway however my corridor feature lines presenting sidewalk is not following/merging with target. In all other locations, it follows the target width however where sidewalk merges with road, feature line goes straight.

Attached PDF should hopefully explain what I want to say. Could not attached dwg due to size issue.

I am using Basic Curb and Urban sidewalk assembly wherein my Blvd targets are set to 0 (none).

How can I make my corridor follow sidewalk width target exactly.

I am using C3D 2010 , Win 7 Pro.

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AutoCAD Civil 3D :: How To Create Median / Lane / Sidewalk Offset Target

Jul 21, 2013

How to create multiple offset target. It mean lane, median, sidewalk extra. I have attached exactly what i expect.

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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:

1

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

2

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 :: Road Surface Becoming Flat?

Jan 30, 2013

running an assembly in to the road corridor and creating a surface. i have designed a network of Roads in CIVIL 3d in which whole network is surrounded by a Loop road. The loop road cross fall is unidirectional (2%) and 4.5 wide. I have used LaneOutsideSuperWithWidening subassembly to create  the assembly of the road. This doesnt contain any kerb or footpath but only road channel lines, The corridor run soomthly but after creating the of the loop road corridor the surface is becoming flat meaning there isn't any cross fall acoss the road but in the assembly crossfall is there. If i run the same assembly in another road alignment the suface is coming absolutely correct.

I also tried different road assemblies to run along the loop road but the result is same no cross fall across the road.

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AutoCAD Civil 3D :: Road Network Surface

Nov 19, 2012

I have make a road network. Then i make a corridor surface using corridor extends as outside boundary. I also create a boundary in the interior side of the roads with interactively tool, and i use it as a hide boundary. The corridor surface look fine but when i am trying to make a finish Ground Surface pasting the corridor surface after Existing Ground surface then the hide boundary of corridor surface make holes in finish Ground surface.

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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 :: 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 Civil 3D :: Existing Corridor Error - No Target Found In Scripts

Jan 17, 2013

When trying to make an existing features corridor when I select Target to set the existing surface I get an error

"No target found in the scripts."

I have attached a word file with the error as it appears on the screen.

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AutoCAD Civil 3D :: How To Break Surface In SAC Road Way Mode

Apr 24, 2013

is it possible to break surface in SAC road way mode?

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AutoCAD Civil 3D :: Subassembly Composer Target Surface

Oct 29, 2013

I can import my SA fine, but the problem is that the top of it needs to be cut off 1 m above the existing ground (which is already a surface in civil 3d). How do I setup the target surface so that when I import the SA into my drawing, I can link it to that surface and have it cut off 1 m above the surface?

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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 :: How To Make A Tunnel Subassembly With A Surface Target

Oct 15, 2013

I've to make a tunnel on my project. I get some subassembly on web but all the tunnel subassemblies have the target point on Width or Offset Target and Slop or Elevation Target. I don't know whats happens but only my region that owns the tunnel subassembly isn't recognizing on corridor, and isn't drawing on my sections too.

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AutoCAD Civil 3D :: Editing Existing Surface Using Edit Surface Command

Nov 14, 2012

I am trying to add points into a surface. I have done this before without any problems, but now I am having issues.

When I ID points which makes up the surface it gives me the correct Z level e.g. 24.5m, however when I hover over the surface it shows me the surface name and a different z level e.g. 0.65m. What is the reason for this difference in z levels? I think this may be causing the issue I am having when I add new points.

I select the surface and use the 'edit surface command' in the ribbon, choosing add point. 

When I add a point at the level I require(23.89m), it puts it in a lot higher than the surrounding area, so I tried to put the point in to the lower z levels (0.4m) it puts it in a lot lower!

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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 Cut Fill Surface From Existing Surface

Mar 1, 2013

Im currently using an addon for Civil 3D called Novapoint. It allows me to create 3D models of surfaces made out of 3d faces and easily models cut and fill 3d-models for me.

The only thing i need to create a cut and fill model is one or several ground surfaces (existing ground, earth layers, rock etc. whatever i need) and a closed polyline/3Dpolyline that represents the level I want my cut and/or fill model.

I enter the spcifications I want such as; earth cut angle, rock cut angle, fill angle, select which surfaces i want to include in the model calculation and select the polyline.Novapoint then calculates the cut/fill model from the surfaces to the polyline and models the different cut/fill angles and gives me the results in a 3d-face model and a specification of the volyme of rock cut, earth cut an fill.

1. Novapoint is quite unstable and crashes alot

2. You cant create profiles out of 3d faces

3. Novapoint does not automaticly combine the start surfaces with the modeled cut/fill surface

4. A large surface made out of 3d-faces demands alot of computer power 

So I want to how I do the same that Novapoint does for me in Civil 3D? (I have access to Civil 3D 2007-2013 depending on which one you're using)I know I can take the 3Dfaces i created in Novapoint and make a surface in Civil 3D with them but I want to exclude Novapoint completely.

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AutoCAD Civil 3D :: Composite Surface Of Existing Surveyed Contours As TIN Pasted Into Existing Aerial Contours

Nov 15, 2012

Some background: We have a composite surface of existing surveyed contours as a TIN pasted into existing aerial contours that we received from a client.  We used polylines to generate our proposed contours, and then generated a proposed surface from that.  We've made a blank surface, pasted in the existing surface, and are trying to paste in our proposed surface...  only the existing contours outside of the proposed suface no longer line up correctly once we do.

We've tried applying the method laid out here: [URL] ........ (and the link referenced in the bottom) but are still having trouble getting the surface to work.  We've tried offsetting as little as 0.25' and as much as 5' with the feature line draped over the existing surface, but it seemed that the greater the offset, the greater the discrepancy.

Just to make sure we even tried that correctly - should the breaklines that we add be standard or non-destructive?  (I've tried it both ways with little success either way, so I don't know if it matters much in this instance, but perhaps for future reference it would work.)

I've attached a screen shot of our surfaces.  The pink and green lines are the proposed contours, the white dashed are the existing.  The outer red line is offset 0.25'.  As I've mentioned, we've tried offsetting various amounts with decreasing success.

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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 :: Existing Surface And Profile Do Not Match

Sep 9, 2013

Civil 3d 2014.... I have existing surface and a profile with 5 sample lines.   All of them are good except 1 sample offset.  I can do I quick profile and the profile looks like it should but if I generate an actual profile 90% of the profile is off.  I have already tried reoding the alignment but it looks same on either one.

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AutoCAD Civil 3D :: How To Rename Existing Profile From Surface

Oct 18, 2012

How to rename the existing profile “profile from surface”? On the right click there is no such option!

Software: AutoCAD 2014, AutoCAD C3D, AutoCAD M3D, Revit
Windows 7 (Ultimate 64 bits),
Firefox 20.0,
Kaspersky 2013.

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AutoCAD Civil 3D :: Creating Surface From Existing Points?

Jun 11, 2013

I have been given a survey on AutoCAD which was orginally 2D with the levels written in text next to it. I changed each point (690) to include the level in the Z-direction. I am trying to calculate volumes of topsoil removal and then cut anf fill volumes. 

So I opened up Civil3D in metric template and imported my drawing as I have not been given a ddata file with the co-ordinates. Unfortunately I am having trouble creating a surface between the existing points. 

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AutoCAD Civil 3D :: How To Edit An Existing Surface Boundary

May 28, 2013

I have a surface that I created by joining to surfaces, and now I want to reduce my boundary, how can I edit it? 

windows 7, intel I7, 8 MB RAM, civil3d 2013.

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AutoCAD Civil 3D :: Pounding On Existing Surveyed Surface?

Oct 23, 2013

I have a survey of an existing road surface and need to show where water will collect (pond). I can obviously use the water drop function and show where water will flow over the surface, but what I need to show are the resultant pond extents on the surface.

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AutoCAD Civil 3D :: Creating A Surface From Existing Contours

Sep 27, 2013

I have an existing surface and I need to creat a surface using contour lines of a at the high point on a spillway to the bottom of my pond to calculate volumes. How do I do this?

AutoCAD/Survey Tech
Merritt LS L.L.C..
743 Horizon Ct. Suite 100B
Grand Junction, CO 81506

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AutoCAD Civil 3D :: Creating A Surface From Existing Points?

Jan 16, 2013

I am having some trouble creating a TIN from a point layer in Civil 3D 2011. Would the best course of action be to extract the points from the drawing and creating a surface from there, or is there a way to create the TIN around the existing points in Model space?

I'm much better versed in AutoCAD, but excited about furthering my understanding with Civil3D.

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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 :: Existing Ground Surface And Data Shortcuts?

Mar 27, 2012

I have a rather large project for a roadway reconstruction.  Therefore, the existing utilities are in a separate drawing and the existing ground surface model is in a separate drawing.  All the above surface items (curb and gutter, asphalt, concrete, signs, sidewalks, landscaping, etc..) are in the master drawing.  I then xref'd in my utility drawing and though I would use data shortcuts for my existing ground surface drawing.  I took the surveyed triangles (3d faces) from our raw survey drawing and copied them into my surface drawing, created a surface from the triangles, created a boundary and such.  So far everything is good.  I created the working folder for the data shortcuts for this project and saved the drawing and closed it.  I went into my master drawing and clicked on "Create Reference".  I did not promote.  The reference came though and everything is fine.  Now I want to add contour labels in my surface drawing which I did but they do not show up in my master drawing but the contours themselves do.  Do I have to promote this drawing into my master drawing so I can create the contour labels in my master drawing?  I guess that is fine but the issue is we have small areas of topo that will be added as needed down the road.  If I promote the surface drawing into my master drawing then when I add topo to the surface drawing, it wont update in my master drawing. 

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AutoCAD Civil 3D :: Grading To Existing Surface From Feature Line

Aug 2, 2012

I have an existing surface with a steep slope and a feature line for the edge of a proposed walkway.  I need a buffer of 25m  on either side of the walkway but offsetting doesn't take the grade of the slope into account.  How do I grade down the hill from the feature line at 25m to match to the existing surface?

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AutoCAD Civil 3D :: Combining New Survey Points Into An Existing Surface

Aug 28, 2013

Every week I recieve new survey data (typically around 20 points) to insert onto an existing surface of our local landfill.

The surface is displayed as minor and major contours.  The new survey data typically always has higher elevations then the exist surface and shot roughly 2 meters apart.

Here's my issue...when the survey data is inserted and the surface is rebuilt, the contours seem to turn into little cones at each new point.  see attached...

how to eliminate these 'cones' so the surface contours seem more relistic?

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AutoCAD Civil 3D :: Create Localized Existing Surface From Very Large Topo

May 3, 2013

I am trying to create a localized existing surface from a very large topo. I promoted the existing surface shortcut into my drawing, then created a cropped surface to be put in a new drawing. After creating the cropped surface the new file shows that a surface has been created, however, the surface contains no data. I am using c3d 2012.

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AutoCAD Civil 3D :: Edit Existing Surface Made By Selection Polyline

Aug 28, 2013

I have a proposed surface that has been made by selection polyline with a z elevation as contours.  Is it possible to have civil 3d easily change the weeding and supplementing factors to a tighter value after it has already been made?

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