AutoCAD Civil 3D General Discussion

AutoCAD Civil 3D General Discussion

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schroeder.a
Posts: 20
Registered: ‎09-11-2012
Message 1 of 14 (1,157 Views)
Accepted Solution

Subdivision Design Workflow

1157 Views, 13 Replies
09-13-2012 08:58 AM

Hi All,

 

I'm a looong time forum member, just working under a new name for the time being.  II was hoping to get your thoughts on the conceptual design process for a new subdivision with say 100+ lots, and 5-6 roads within it. 

 

What I'd like is to learn a workflow that lets me adjust the alignments/profile with a minimum amount of effort to re-layout 100+ lots, and which lets us explore design options more interactively.  Once we pin down a few alignment options, I would create a simple corridor with multiple baselines to develop the grading concept.

 

One thing that irks me so far is that the Create ROW command is nice, but it's not dynamic to the alignments.

 

How do you handle cul-de-sacs on this process?

The intersection object handles that for you.  This example didn't include design profiles but if they were present then the intersection wizard prompts you to choose a primary and secondary profile.  The secondary one will have a PVI added at the intersection point which is locked and cannot be edited by the user.

*Expert Elite*
BrianHailey
Posts: 2,815
Registered: ‎04-27-2005
Message 2 of 14 (1,155 Views)

Re: Subdivision Design Workflow

09-13-2012 09:21 AM in reply to: schroeder.a

Instead of using the Create Right of Way command, try using Offset Alignments instead. Put them in the same Site as your parcels and they will define your right of way and will be dynamic to the centerline alignment.

Brian Hailey
CAD-1.com
My Blog
Valued Mentor
owenmull
Posts: 356
Registered: ‎09-06-2011
Message 3 of 14 (1,130 Views)

Re: Subdivision Design Workflow

09-13-2012 12:00 PM in reply to: BrianHailey

Yes, yes, to Hailey you listen, mmm hmm hmmm. 

 

Create a left offset and a right offset, and then whatever changes you make to the CL alignment, the offset alignments will come along for the ride.

 

If you want to get really fancy (like me) you can create a seperate alignment style that makes your offset alignments appear as ROW lines, with the correct layers and linetypes, yada yada yada.

-Owen
Windows 7 x 64 bit
NVidia Quadro K3000M Dual Monitor
32.0 GB RAM
Intel Core i7-3820QM @ 2.70 GHz
Civil 3D 2013 SP 2
______________________________________________________________
Usually, I find that the problem is between the keyboard and the chair.
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BrianHailey
Posts: 2,815
Registered: ‎04-27-2005
Message 4 of 14 (1,120 Views)

Re: Subdivision Design Workflow

09-13-2012 01:43 PM in reply to: owenmull

owenmull wrote:

Yes, yes, to Hailey you listen, mmm hmm hmmm. 

 

...with the correct layers and linetypes, yada yada yada.


Don't you mean, "yoda yoda yoda"? :smileyhappy:

 

It's times like this I'm bummed I can only give one kudo!

Brian Hailey
CAD-1.com
My Blog
Valued Mentor
owenmull
Posts: 356
Registered: ‎09-06-2011
Message 5 of 14 (1,108 Views)

Re: Subdivision Design Workflow

09-13-2012 02:37 PM in reply to: BrianHailey

Maybe I'll get you a new jokebook for Xmas....................

-Owen
Windows 7 x 64 bit
NVidia Quadro K3000M Dual Monitor
32.0 GB RAM
Intel Core i7-3820QM @ 2.70 GHz
Civil 3D 2013 SP 2
______________________________________________________________
Usually, I find that the problem is between the keyboard and the chair.
*Expert Elite*
sboon
Posts: 2,133
Registered: ‎11-08-2005
Message 6 of 14 (1,099 Views)

Re: Subdivision Design Workflow

09-13-2012 03:15 PM in reply to: BrianHailey

This is worth more than one kudo.  I am definitely stealing this idea.

Contributor
schroeder.a
Posts: 20
Registered: ‎09-11-2012
Message 7 of 14 (1,094 Views)

Re: Subdivision Design Workflow

09-13-2012 03:22 PM in reply to: schroeder.a

too simple your answer, I think!

 

http://www.interstateauction.com/2008-06june-05_Jackson_Bridge_Subdivision_Lots/Jackson_Bridge_Subdi...

 

That's the kind of think I'm dealing with (but larger).  A nice big network of roads, very hilly, and I'll need to make a lot of adjustments to the alignments as I try out different concepts.  The offset alignment would only paralell my main alignment, not cleaning intersections, etc. 

 

 

*Expert Elite*
sboon
Posts: 2,133
Registered: ‎11-08-2005
Message 8 of 14 (1,088 Views)

Re: Subdivision Design Workflow

09-13-2012 03:36 PM in reply to: schroeder.a

You should be able to use the intersection wizard for that.  It's not going to help you with the culdesac bulbs but you should be able to define either a radius for the property corners at the intersections or a chamfered corner if you prefer.

 

For the culdesacs you can create an alignment using the Fixed curve - center point and radius, and then add free or floating curves to tie into the alignments which parallel the centerline.

*Expert Elite*
sboon
Posts: 2,133
Registered: ‎11-08-2005
Message 9 of 14 (1,072 Views)

Re: Subdivision Design Workflow

09-13-2012 10:33 PM in reply to: sboon

A sample drawing for those who want to experiment with this workflow.

 

star-wars-humor-30661.jpg

 

Valued Mentor
owenmull
Posts: 356
Registered: ‎09-06-2011
Message 10 of 14 (1,048 Views)

Re: Subdivision Design Workflow

09-14-2012 07:55 AM in reply to: schroeder.a

stevekoss wrote:

too simple your answer, I think!

 


The simple answers are always the best answers!

 

I would do CL alingments, then offset alignments for your ROW, create your parcels, then use the intersection tool for intersections, and use Steve's method for creating your cul-de-sacs. 

-Owen
Windows 7 x 64 bit
NVidia Quadro K3000M Dual Monitor
32.0 GB RAM
Intel Core i7-3820QM @ 2.70 GHz
Civil 3D 2013 SP 2
______________________________________________________________
Usually, I find that the problem is between the keyboard and the chair.
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