AutoCAD Civil 3D :: Identifying Areas Of Widening
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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Nov 6, 2013
What I want to be able to check is the areas of clipping in the shadows and highlights. Now I know Lightroom is very easy in the histogram, having a little warning button that will display when an area is off. What I've come up with so far for Photoshop is that there are only two tools, in the camera raw and in levels. Camera Raw is pretty self-explanitory, but I want to be able to check this in photoshop after I've done some work on the image. So I see that the levels tool you can click and hold on the triangle, and if you press the "Alt" key it will show you what areas are clipped. I'm not sure if I really understand it though, as it shows areas that aren't really clipped, e.g. a slightly darker area of sky is showing as light blue, but not a solid color, as being clipped. What is that?
I think that from the example above that say the reason the sky is showing a little cyan is that the red channel is being clipped in the dark sky only, and not the other channels. Do I need to be concerned about this for a good quality print? For best display on the web?
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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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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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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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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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Aug 15, 2011
I have a drawing (autocad 2011) ,which i have to measure the areas of the many rooms and i arrange these areas in a table! is there any fast way to do so? avoiding the boaring typical area measurements room by room?
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May 1, 2013
Trying to calculate a catchment area to allow me to size some culverts using Civil 3D 2012 Sp#1.
" The specified location results in a Catchment with no area."
After sitting for 15 miutes I keep getting the above message. The surface is huge and there is an obvious catchment area (or I think it is obvious). The surface was generated from contours and cover an area of approx. 8Km x6.5Km but the catchment ares should be around 15-20% of that area.
I tried another one upstream about a Km and it worked fine. So the one I am doing now should encompass the upstream area as well as from that point downstream to the Discharge Point.
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Aug 1, 2013
I have a bunch of polylines I want to display the areas for. I am using mtext and fields. However the fields format part always defaults to a less than desirable format. Is there a way to set the formatting how I want it for the entire file? Or is there a better way of labeling than fields?
Civil 3D 2012 SP4.0 Windows 7 Enterprise 64-bit
C3D 2014 SP1
Dell M6600, Core i7 @ 2.3GHz, 16 GB ram
Dell T3500 workstation, too much ram to post
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Oct 31, 2012
Is there a way to assign pay items to a selection set of closed areas? The tool seems to only allow the user to pick one object at a time.
Infrastructure Suite/C3D 2013, LDT 2004, Power Civil v8i SS1
WIN 7 64 PRO
HP Pavillion h8xt, i7 2600, 12 GB
RADEON 6450, 1 GB
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Apr 13, 2013
see attached graphic
simple road widening section
subassembly from centerline is LINKOFFSETONSURFACE out to a target alignment
next sub is good old LANEINSIDESUPER, using depths for PAVE1DEPTH and SUB-BASEDEPTH
the corridor definition under SURFACES specifies top links for both PAVE1 and SUB-BASE surfaces, but they appear to ignore that and cut across the road (see graphic) making a mess of it
do I need to add a link code to LINKOFFSETONSURFACE subassembly? other work-around?
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Apr 16, 2013
I have a 100 acre park that I am doing earthworks. I have 1 proposed and 1 existing surface. The park is now broke into 5 different areas and I need to get cut and fill for each area. Is there a way to do a volume report for a particular area? I could define the area with a polyline. Or do I need to copy the proposed surface and start chopping up into 5 areas?
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Mar 14, 2013
I am trying to get the cut volumes for areas that are greater than 15ft of cut for my project. We know that we will be able to get the top 15 feet with heavy equipment but will be drilling and blasting anything greater than 15 feet of cut. This is a different pay item, with greater cost so we need to quantify it.
I've got a composite surface that graphically shows me the elevation bands so I can see the areas that are greater than 15 feet but I'm not sure how to quantify the volumes.
Currently using C3D 2012 with the volume dashboard extension. Have 2013 installed just haven't jumped over yet.
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Jan 6, 2014
Need to identify areas of 100sf or less within slopes exceeding 40%. Is there a simple way to identify this within C3D?
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Jun 22, 2012
Our company is looking for training in Autodesk Civil 3d. We contacted a local re-seller, but unfortunately their quote was higher than our company can absorb at this time with the economy. Is there a public list that has certified trainers in different market areas? We are located about 40 minutes North of the Philadelphia area.
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Dec 21, 2012
I have a personal block library, that somehow has gotten "infected" with AEC. I'm not using any AEC objects on purpose - but loading my library file now loads the various AEC object enablers. How can I find the mysterious entity that is using these?
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Sep 22, 2011
What is the difference between rooms and areas? Why create an area schedule off 'areas' as opposed to using 'room' areas? Can you create a schedule off room areas?
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Feb 5, 2013
When I add contour data to my surface, I uncheck all the boxes in "Minimize flat areas by:" except "Swapping edges", and I check the "Swapping edges" box. The next time I add contours, I have to uncheck the same boxes, and check the "Swapping edges" box. I can set the default Mid-ordinate distance, etc. but I can't find anywhere in the settings that I can preset the check boxes for minimizing flat areas.
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Jan 29, 2013
In the image below I have an aerial photo of an Island. I need to make it so as water areas are black and land areas are white (not greyscale) almost like a silhouette. My first plan was to draw round the island with a black paint brush and then use the "bucket fill" with a suitable threshold to fill all of the areas up to the black outline with black, however this doesn't work as the bucket fill either breaks through the black line or when I reduce the threshold, doesn't color the water areas solidly.
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Jun 6, 2009
I'll make the important parts bold.
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Jan 15, 2013
I've read that it is possible to "hand draft" small complex areas that a corridor cannot handle easily.
I have an intersection in an old neighborhood that is constrained by retaining walls, buildings, and so on. In this I have to fit in current ADA ramps. Due to constrained space I will have to get creative in my elevations and layouts.I'd like to somehow integrate it with the corridor.
Windows 7-64
8GB RAM
AutoCAD Civil 3D 2013
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Feb 7, 2013
I'm running into issues with some skeleton parts (with the BOMStructure type of "kPhantomBOMStructure"). When these files are manually opened up by themselves and saved, I get an error stating that "<filename> can only be saved in the context of another document which is not currently in memory".
I've seen other people with this problem in the regular Inventor discussion group ("cannot save changes", "save error"), but with no real solution.
What I'd like to be able to do is find out through the APIs which file this needs to be saved with. I'm worried that I wont be able to get this information since Inventor itself won't tell me.
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