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 ?
View 4 RepliesI 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.
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.
Here's my assembly :
and
when I tried to assign the Median Width in my corridor to a polyline representing media width,
I got this overlap in my Section view :
how can I maintain Objects in this cause "Lanes" attached to median no matter width change ?
Sony VPCCW26FA
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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
How to create multiple offset target. It mean lane, median, sidewalk extra. I have attached exactly what i expect.
View 3 Replies View RelatedI 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?
It can be done using the LaneFromTaperedMedian subassembly, and that there is a webcast explaining it. I have checked with Autodesk, and the webcast is no longer available. Any detailed instructions as to how to accomplish this. I'll attach an image of my median.
Win 7 64BIT
C3D 2013
I have a baseline profile as a finished grade of a roadway corridor and want to add raised medians within a portion of the corridor. best way to have the medians adjust as the profile grade changes?
View 9 Replies View RelatedC3D2012..I have an assembly with left and right curb subassemblies, they are spaced about 1 m apart. I want to connect the BOC's with a constant slope median. I bring in the median and connect it to the Left BOC and it attaches, but shoots the median for 20 m across the assembly to the right. I tried to put a marked point on the right BOC prior to bringing in the median assembly, but the same thing happens. I changed the marked point name to RTC (Right Top Curb) and also changed the name to match in the median subassembly, with the same results.
Any proper way to insert the median and get it to connect properly.
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.
View 6 Replies View RelatedI 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
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12 GB Ram
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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.
View 3 Replies View RelatedHaving 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
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)
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NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600
i have a question for the gurus. how do i accomplish modeling two parallel roads with a median in between? in other words, say a northbound (NB) and a parallel southbound (SB) roadway, with a grass median in between them. the both roads have crown, and then eventually slope down towards the median, and at one point they meet.
I am curious to know if say for NB and SB, i have an assembly with the lanes, then shoulder, and then median area past the shoulder at x%, what subassembly should i use to accurately model the point where the NB and SB x%s meet?
*Edit:
I am not sure if i would be able to do it with only one baseline, as the roads may not always be parallel.
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.
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.
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!
View 2 Replies View RelatedAlthout 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.
I have problem with medians ( Both MedianRaisedWithCrown and MedianRaisedConstantSlope) when crossing center line ( i.e whole median has to cross the center line).
I have median that goes along the centerline and it has to move to left completely ( whole median is on left side of the centerline) to cater for left turn. I tried with MedianRaisedWithCrown and MedianRaisedConstantSlope but it did not workout for me.
I used alignment ( for cl ) and offset alignments for median edge and etw. I have problem when the median edge ( offset alignment ) cross the center line and continues. I can see etw and median feature line shifts.
I'm facing problem in designing a intersection. Highway median intersection opposing left turn lanes.
View 4 Replies View RelatedI will be starting to design a 4 lane - 5 lane highway divided by a median. The median will be offset from the cl, stop for the intersection, then continue on the other side of the cl once past the intersection.
I will start digging into the median sub assemblies to try to figure this out.
I remember the old LLD/Civil manuals used to have a description on how to do this. I have 2008 sp2, but only the 2007 manual printed out.
I have 30 M corridor. daylighting slopes have not been mentioned in typical section of this urban road. the sketch is shown. making this assembly and to get the 30 m fixed corridor.
View 1 Replies View RelatedI have a corridor split and I do not need an assembly for the first part of my corridor do I create a blank assembly for that part of the design?
View 1 Replies View RelatedHow to create a transition crossfall over a distance in assembly. For example, I would like to get hard shoulder crossfall along the edge of travel lane from proposed 2.5% to tie in the existing (e.g. 1%) over 10m.
View 2 Replies View RelatedHow to create a sub-assembly with an insertion point parameter using Sub-assembly composer.
like this one below. I found this under the following sub-assembly. All I want is , when the user inserting the sub-assembly they may need to go on both the sides attached.
Example:
So the user should be able to select from the dropdown if the insertion point is 1 or 2. Before inserting.
how to create an assembly with different inclinations of terraces and slopes
View 2 Replies View RelatedI'm trying to create an assembly that consists of two curbs sub-assemblies that are tied to independent alignments with a pavement section in between them. I have been successful in actually creating an assembly with the two curb sections, but I cannot figure out how to define a line or pavement section that will connect one gutter to the other.
I have one curb tied to the main baseline and the other tied to an offset. I have assigned horizontal alignments and profiles to the baseline and the offset. The curbs actually place where I want them when viewed with the section editor. I had thought that I could use the LinkToMarkedPoint subassembly and simply attach it to the gutter of one curb and to a marked point on the gutter of the other curb, but I can't get it to actually work.
Again, the curb alignment and profiles are completely in independent one another, and I need a way to define a pavement section (or just a surface) between the two gutters.
How can I create a top soil stripping line in an assembly?
View 6 Replies View RelatedI am trying to create an assembly with a U channel (side ditch) that's top will follow the sidewalk it is next to but I need the profile of the U channel to be different than that of the roadway. Is there a way to create a custom subassembly part that will do this? Can I create a different allignment/profile for the bottom of the U channel that can then link to the other assembly?
The only other think I can think of is to use a dynamic block to add the U channel to my cross sections, but that will take a lot of time to do.