bddemers

How to level a driveway widthwise

Recommended Posts

Anyone know how to quickly level a driveway widthwise? I have a curved driveway that slopes over the length of it, which is ok, I only want to level it by width. The modifier 'level region(cut/fill)' doesn't work because it levels the entire driveway over length and width. If I do small sections at a time it will look choppy.

 

Also a separate question. Can I select an area to modify that already exists? like if I click on the entire driveway and want to use that shape to modify instead of clicking a modifier first and having to create a poly line matching an existing shape I have already made? 599071d35acc2_ScreenShot2017-08-10at4_59_35PM.thumb.png.c515c243b739bca4463ebdde5bdc25e2.png599071cd1b93d_ScreenShot2017-08-10at5_00_37PM.thumb.png.3c9b960906e64314e05652eb16f27075.png

Thanks for any help.

Brian D

Share this post


Link to post
Share on other sites

You level the driveway by leveling the terrain since the driveway follows the slope of the terrain. So I would insert flat regions along the width of the driveway which once properly adjusted leaves the terrain sloping that the driveway relative to itself, flat over its width. I am not saying this is "easy" but is the way to address it.

59 minutes ago, bddemers said:

Also a separate question. Can I select an area to modify that already exists? like if I click on the entire driveway and want to use that shape to modify instead of clicking a modifier first and having to create a poly line matching an existing shape I have already made?

 

Not sure what you mean, by "select an area" do you mean of a terrain object like a driveway, if that is your question then the answer is "NO". Terrain and those features that rest on terrain are affected by terrain elevation objects only, there currently is no other method.

 

DJP

  • Upvote 2

Share this post


Link to post
Share on other sites

I could be wrong here because I don't work with terrains very often and as such they are probably my weakest area in Chief, but...doesn't a Road automatically level the terrain?  Have you tried using a road instead of a driveway?  I don't know, it's just a thought.  

Share this post


Link to post
Share on other sites
5 hours ago, Alaskan_Son said:

but...doesn't a Road automatically level the terrain?

Yes, a "Road" object does but not a "Driveway": two different objects programmed differently. The OP is asking about a poly-line driveway, and not a straight "Road" object.

 

DJP

Share this post


Link to post
Share on other sites

Use a Spline Driveway and shape it to suit.

It will cut and fill the terrain in it's width.

 

I don't understand the second part to your question

New Image_227.jpg

  • Upvote 2

Share this post


Link to post
Share on other sites

As always, great help here on Chieftalk!! My project is coming along nicely.

Thank you so much. :)

 

Brian D

Share this post


Link to post
Share on other sites
3 hours ago, glennw said:

It will cut and fill the terrain in it's width.

 

Glenn, I did not know that, thank you for the help!

 

DJP

Share this post


Link to post
Share on other sites

Just another quick tip worth mentioning - which i got from Glenn - i started using elevation regions (only) instead of topo lines and Chief handles these 1000% better.  I realize its not "as" accurate (close enough for most things), but Chief deals with other objects way smoother if they're are built with Chief interpolated topo over "hard" actual topo.  I just make a few elevation regions from the area between what would be topo lines.

 

Does this make sense?  Again, Glenn showed me this and helped immensely.

Share this post


Link to post
Share on other sites
4 hours ago, glennw said:

Use a Spline Driveway and shape it to suit.

It will cut and fill the terrain in it's width.

And to expound on this; stack roadways (+|- Heights) to create a shoulder.

Share this post


Link to post
Share on other sites
9 hours ago, DavidJPotter said:

Yes, a "Road" object does but not a "Driveway": two different objects programmed differently. The OP is asking about a poly-line driveway, and not a straight "Road" object.

 

DJP

 

I'm back at the computer now and I can see that although roads and driveways do have a number of capabilities that set them apart from each other, there appears to be very little difference between a road and a driveway in this particular regard.  I thought only roads cut and filled the terrain to remain flat along their width, but my my memory/assumption was incorrect...both roads and driveways behave in the exact same way...

 

  • Straight roads and driveways remain flat along their width
  • Spline roads and driveways remain flat along their width
  • Polyline roads and driveways conform to the terrain

 

Just use one of the first 2 and you should be good to go.  As Glenn pointed out, a spline driveway (or road) would work, but a straight driveway would have actually worked just fine for this particular instance as well.  Just draw multiple sections, fillet corners, convert lines to arcs etc.  Just edit like any CAD object to create the desired path shape.  This was drawn using the straight driveway tool...

Driveway.thumb.jpg.94f1026e766630a28319bfab6f05a18f.jpg

 

 

 

 

  • Upvote 2

Share this post


Link to post
Share on other sites
16 hours ago, Alaskan_Son said:

 

I'm back at the computer now and I can see that although roads and driveways do have a number of capabilities that set them apart from each other, there appears to be very little difference between a road and a driveway in this particular regard.  I thought only roads cut and filled the terrain to remain flat along their width, but my my memory/assumption was incorrect...both roads and driveways behave in the exact same way...

 

  • Straight roads and driveways remain flat along their width
  • Spline roads and driveways remain flat along their width
  • Polyline roads and driveways conform to the terrain

 

Just use one of the first 2 and you should be good to go.  As Glenn pointed out, a spline driveway (or road) would work, but a straight driveway would have actually worked just fine for this particular instance as well.  Just draw multiple sections, fillet corners, convert lines to arcs etc.  Just edit like any CAD object to create the desired path shape.  This was drawn using the straight driveway tool...

Driveway.thumb.jpg.94f1026e766630a28319bfab6f05a18f.jpg

 

 

 

 

This is good to know.  I could have saved much time for other projects by avoiding polyline roads.  Sometimes though, a driveway does not have parallel or concentric edges.  That is where things get fun.

Share this post


Link to post
Share on other sites

Given a better understanding of the behavior of these options, is there a way one can set a slope for a straight road/driveway or a spline road/driveway segment.  The application would be a design slope which ultimately defines the degree of cut and fill.  Or, is this too much to ask at this point?  

Share this post


Link to post
Share on other sites
35 minutes ago, stephenbc said:

Given a better understanding of the behavior of these options, is there a way one can set a slope for a straight road/driveway or a spline road/driveway segment.  The application would be a design slope which ultimately defines the degree of cut and fill.  Or, is this too much to ask at this point?  

 

Yes likely you are asking a bit too much however there is almost always a way to accomplish what you need. Can you provide a little more information about the project ?  Maybe what you have done so far and what your goals are and the shape of the road or driveway.

Share this post


Link to post
Share on other sites

I'm wondering if one could simply draw a road and set its slope based on its segment length?  I don't see a dialogue box option to set a slope angle for the whole road segment, especially if it has many points along it's length.  

Share this post


Link to post
Share on other sites

No you won't find that as the program is not for designing public roadways.  Is it a short concrete entrance drive or long winding drive with switchbacks up the side of a mountain ?

Share this post


Link to post
Share on other sites

I'm looking at the potential design of a concrete drive that is about 250' long. Main restriction is maximum slope (code), but would like some sections less steep than others...basically it would be to accommodate code and aesthetics.

Share this post


Link to post
Share on other sites
8 minutes ago, stephenbc said:

I'm looking at the potential design of a concrete drive that is about 250' long. Main restriction is maximum slope (code), but would like some sections less steep than others...basically it would be to accommodate code and aesthetics.

 

Unfortunately, in Chief we dont have any control grade/slope settings of the road/driveway modifier that I know of. You'd have to manually do the calcs and set the terrain to make it work.

Share this post


Link to post
Share on other sites

If you want it straight and true like a runway use a polyline solid and work the terrain to it. You can accurately tilt it in degrees and join sections together as the slope changes. Just remember to draw it in elevation view and don't forget the expansion joints. Or use the terrain tools and a Polyline Road/Driveway as Johnny just suggested.

Share this post


Link to post
Share on other sites

I suspected that's what would be required...thanks for the confirmation.

Share this post


Link to post
Share on other sites

I ended up just using a few straight terrain lines perpendicular to the curve and it lessened the steepness. 

Ramp? I'll have to check that out!

:)

Share this post


Link to post
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now

  • Member Statistics

    27345
    Total Members
    6254
    Most Online
    greglocke
    Newest Member
    greglocke
    Joined
  • Similar Content

    • By Steve77
      Hi There,

      I am a current chief architect user and have a question in regards to the contour tool and driveway tool.

      I have a plan that has a sloping site that I am trying to accurately portray in 3d for both client and the Local Council.
      From the road front the site slopes left to right and from the back to front.
      (I have attached Images shown what I currently have)

      My question is there something that I am missing I have also tried in elevation converting/extracting a polyline solid but it doesn't quite work.

      I have attached a link to the 3d viewer but can add a plan if need be.   https://3d-viewer.chiefarchitect.com/go?share=503392208525732    
    • By B4UBLD
      Hi All,
       
      OK, I give.  No clue why I can't get my driveways to cut through the curb, creating a nice, graduated slope.  Dumb mistake, I'm sure.  Someone show me mercy; hurry.  Please.  :-)

    • By AmiableTart
      is anyone aware of a specific catalog, free or otherwise, that contains single, rectangular wall-mounted flood lights?  the default catalog contains two variations of floodlights but they both have a round profile and it won't meet the needs of my presentation.
       
      Thanks

    • By CBRF23
      Does anyone know how to make a driveway that runs up a sloping lot at an angle.  Seems like it should be simple, but I'm racking my brain here and have come up empty with multiple attempts.  You can see what I'm going for in the images below.  The driveway feature just paints a driveway on top of the existing terrain topography, and I can't figure out how to create a slab or a terrain feature that slopes continuously the way you would expect. 
       
      I'm using chief X9, plan file attached.  



      Plan.zip
    • By jlcDesign
      You guys, I'm dying here.  I'm doing a full renovation of a split level, but can't wrap my head around how to affect part of a lower wall while not doing it to the upper and vice versa.  For example, I need the wall below the upper to be solid and then railing at the upper, but Chief sees it as one wall and puts the railing all the way down.  I'm attaching the glasshouse of the space (just solid wall now) and a photo of what I want to do.  Any help will be super appreciated!!!