AutoCAD Civil 3D :: Super Elevation And Horizontal Transitions
Feb 14, 2013
I need getting a roadway to transition horizontally for a turn lane. If it were straight without super, it would be easy. However, the transition happens in a curve that needs to be super elevated.
I know I can use the lane transition assembly and set it to "change offset and grade" but with that, I would have to manually calculate my EOP elevations.
Is there a sub assembly with the ability to use the centerline super elevation data as well as transition horizontally?
Superelevation curve criteria specifies axis of rotation but the assembly does not contain pivots.
okay i got this Before , just when i wanted to change in the Super Elevation Wizard , to outside lane rotation , i recently used AOR type , but yet no luck. also in my profile the super elevation the Cross slop Band : i always no matter what a rotation about center line.
I'm working on a runway in Civil 3D 2011. I want to transition cross slopes along the runway. i.e. 1.5% for sta 1+00 to 10+00 and then transition into 1.0%. I thought super elevation would be the best way to do this (I dont want any actual super elevation, just transitions in cross slope). When I select the alignment and "Calculate/Edit Superelevation" i get the following message in the commanding line:
"_AeccCalcEditSuperelevation No superelevation data has been calculated for the selected reference alignment." It does not bring up the wizard.
My runway alignment doesn't have any curves and I'm thinking that's the problem. Is is possible to create super elevation without curves?
I am using Civil 3d 2013 and I am trying to calculate the superelevation information in which the curve will max at 2%. Is there a way in which the superelevation can be calculated using the superelevation wizard in which a 2% SE is the max? So far it will only let me use the SE for 4% local roads and I have to edit it using the SE layout.
I have a superelevation on an alignment but want to remove this as its overriding the assembly I'm using. I have tried using the tabular editor within edit super elevation to remove the various sections but it's still not working. How can I remove the entire super elevation and revert back to my standard assemblys?
I want to know how exactly the super elevation within SAC works. I am building few SAs and some are just multi layered lanes and others are lanes with solder, etc.
How do I add super elevation to SA, After adding Super elevation to Parameter what is the next thing to do.
I have a section of road that has super elevation from -6% to +6%. The asphalt layer (top green) supers from -6 to +6 but the base course (red) only goes from -4 to +6. I attached a sketch for some visual information.
What subassembly recommended for this scenario?
Is there a way I can set max values for the subgrade? Or an assembly where I can use superelevation for the top and for the subgrade?
I am using C3D 2012 but can use 2013 if it makes a difference.
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
With Civil 2010 I used superelevataion to transition a street's cross fall from left to right. It was very straight forward with 2010.
Now with 2011 it appears that I cannot add superelevation to an alignment with any curve and change the crossfall of a street from left to right over 20m.
I've got a highway project for which I'm modeling the corridor but the design profiles given to me are for the right lane top edge (ETW) and not the centerline (crown). This is an undivided planer roadway with a typical 2% cross-slope. How can I use that profile for the right edge to run my corridor? I can't seem to get the corridor to use the super table that is attached to the centerline when I use an offset assembly. Is an offset assembly the right way to go with this design?
What I've done just to get going is to take that right edge design profile and draw it in my centerline profile view, then lower it 0.24' (which is my 2% normal cross-slope for a 12' lane) and then use that as a centerline profile and let my normal super assembly and table data control the corridor through the supers. So far that is working--but is there a better way to do this?
We don not show CL profiles and only show the gutters on the CL profile view. We also do not used profile bands.
I need to show Superelevation on both left and right profiles complete with labeling.
Short of creating a seperate alignment for each, sampling the corridor surface, superimposing it onto the CL profile view and then creating a layout profile by drawing over the sampled surface.
Our provincial standard requires subgrade and subbase surfaces to have a normal cross slope of -3%. The base and asphalt surfaces have a normal cross slope for the driving lane of -2% and -5% for the shoulder.
I have been trying to figure out how to do this in C3D. I have thought of different ways of handling this for a straight tangent, but have not tested them. What is causing me the most grief at the moment is how to handle this in a curve with super elevation.
The transition will be different for -2%, -3% and -5% Runout distances.
Can C3D handle this? What about using Subassembly Composer?
(I should mention that I have tried with Subassembly Composer, but I am not sure how to deal with superelevation. -
As shown in the attached drawing, the station label where the superelevation transitions back into normal crown shows with 4 decimal places. We have verified that all precisions are set to 0.01ft. The normal crown station at the begin transition shows with 2 decimal places.
Civil 3D 2013 SP1 Dell T3500 Workstation Intel Xeon E5630 @ 2.53 GHz 12 Gig of RAM Nvidia Quadro FX3800 Window 7 x 64bit OS
Is there any reason why a corridor model would not be respecting the manually entered super elevation values in the alignment? I have several stations that should be calculated with even super elevation values, but they aren't. For example, at station 0+080 on my alignment the left crown should be running at -3%, but it is actually being calculated at -2.47%. It isn't just one station; it's most of them. No overridden stations, vertical targets, etc in the corridor. Just a fairly straight-forward align (hor/vert) with super, simple assembly (two lanes, shoulder, daylight), simple corridor.
Alignment, profile, assembly and corridor have been setup. i have setup the superelevation calculations and did the super elevation view and it looks right, but for some reason the super elevation won't apply to my section view assemblies or the corridor editor.
Trying to change the position of the "elevation" labels on the horizontal axis. They come default as being inside the profile and i want them shown on the outside of the profile box.
I'm having problems getting super elevation data to transfer to different drawings by means of an alignment data shortcut. I know alignments hold the super elevation data so I've gone into my alignments data shortcut, input my super elevation data, saved and closed. Now when I open my finished grade drawing, reference in my alignment and profiles, then create a corridor from that information, my super elevation didn't transfer with the reference.
I pulled cross sections and it appears is has no clue there is any super elevation data. Also, I tried bringing it directly into the drawing I'm doing my corridors in and it erred saying I must be in the parent alignment drawing. Data shortcuts are pretty much useless to me if super elevation data doesn't transfer.
64 bit Windows 7 Intel Xeon (R) @2.8GHz 6.00GB Ram Civil 3D 2012 Civil 3D 2012 Intel(R) Xeon W3530 @ 2.80GHz 6.00GB Ram Windows 7 Professional
I have an alignment with horizontal PVI points that are coincidental with COGO points. I want to display in a profile view, a surface elevation at the alignment PVI points in a band style. Is it possible to do this? If so, how?
Is there a way to avoid super Elevation or Side Friction in Sloped Surfaces for Curves, such as Building Pads, Ramps, Floors, etc.. Is it mandatory.. ?? Its a problem all the time worrying about matching levels in topo surface and floors for gradual slopes in site and side friction in sloped ramps or sloped building pads.. that matching line between levels doesn't look good while giving presentations..
I have also attached an image for reference.. both the sloped surfaces are building pads..
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.
When I snap a point to an object, the point takes on the elevation of the object. I would rather the point's elevation stay as is.
-changing osnapz variable
-latest civil 3d service pack
A few weeks ago I did not have this problem but once my computer was switched to the company's global server and c3d was reinstalled the problem appeared. Furthermore (post switchover), when a colleage of mine prepared a simple test drawing with just a line and a point, he was able to snap to that line without the point changing elevation. When he sent that drawing to me and I tried snapping the point to the object, the same problem occured with the point taking the elevation of the line object. I suspect it is a system variable issue
i have some existing drainage pipe and structures in a base plan that i need to change the invert (which is the easy part) and the top elevation to the existing top elevation that does not meet the minimum presect in civil 3d 2012 is there a way to change these min. to match my exisitng elevation for example i have a catch basin invert is 15.45 top is 17.56 with a 18" rcp the cover will be less than 12" and i need to change this.
It sounds like the transition should happen automatically (although some tweaking may be required).
But for some reason, I'm NOT getting a transition.
I had one assembly for the entire length and the designer wanted to have the curb stop at 0+40 and from 0+40 to the end, he wanted NO CURB--just an EOP.
So I copied the assembly, modified the copy so that there was no longer a curb and attached the shoulder (that was previously connected to the curb) to the EOP.
So the codes should all be same. I just attached a dwg file (created/saved in 2012) with my two assemblies in it.
There are been a few posts about transitions this week, so here is a simple little sub assembly (provided "As Is") that might work. It was build with Sub Assembly Composer 2014. The way it works it to calculate a number at a station based on a start and end value, a transition type and the station (chainage) value in relationship to the start and end points of the region. It has X transition types: Linear, Parabolic Out (rate of change increases) Parabolic In (rate of change decreases), Reverse parabolic (back to back), Bay Taper (from Caltrans this is a three part transition made of 2 parabolas and a linear section), Cubic Out and Cubic In.
The way it works is you insert the subassembly before a subassembly that you need to transition. You set up the start and end values and the type of transition to make. Then in the following subassembly you reference the value that is returned. For slopes, you'll have to input the values in decimal (4:1 = 0.25)
I've attached a drawing as well that shows a bay taper of a road from 12 to 24 over 120 and a daylight that goes from 1:1 to 4:1 and back around a curve (3 regions)
I have two assemblies that represent road cross section at two points along a corridor. I want the corridor to transition smoothly between the two cross section so that if I look at a section halfway between the two assemblies it will have an intermediate width. Doing this with a simple transition assembly doesn't seem to be the most efficient approach since my offset or target actually changes as one moves up the corridor. Is there a way to generate a polyline or some other type of entity that could be used as a target?
Trying to model a curb height transition in my corridor. Over about 15' I want to go from a 6" curb to flush.
The only way I can seem to get it to show accurately is to leave a void in my corridor. This allows the surface which is created from the corridor to model correctly and give me a transition of my curb height from 6" to flush. Here's the object viewer showing it correctly:
However, there are a few problems with this approach. Mainly I've come to like the way the relatively new "extract corridor solids" tool (toolspace, toolbox, miscellaneous Utilities, corridor solids). I use this to create a fairly nice looking Navisworks model. With the void, now my model has a void. It seems to me that there should be a way to have a subassembly that can target both the back of curb profile and the edge of gutter simultaneously. I've tried with the standard subassembly "UrbanReplaceCurbGutter2" but with no luck. Any successful modeling a curb height transition within their corridor?
we use three line road profiles. If there is a bus pullout or lane transition we show the curb profile based on centerline stationing. I'm able to generate a the corridor using a transition lane assembly from centerline and targeting a widened offset alignment or just a feature line. I can import the corridor curb feature line into a profile which would be a perfect solution, but it is all truncated. (i.e. no vertical curves) I can create a profile of the offset alignment, but the stationing doesn't match centerline.
How can I either generate a non trunidicated profile from the corridor for my curb profiles? How can create a design profile of a transition/pullout curb line that I can target and plot against centerline stationing?
