AutoCAD Civil 3D General Discussion

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Distinguished Contributor
arobberson
Posts: 114
Registered: ‎12-05-2007
Message 11 of 18 (120 Views)

Re: subassembly help

08-22-2013 04:22 PM in reply to: sboon
Which one would you recommend
Allen G Robberson
arobberson@meai.com
*Expert Elite*
sboon
Posts: 2,075
Registered: ‎11-08-2005
Message 12 of 18 (112 Views)

Re: subassembly help

08-22-2013 04:41 PM in reply to: arobberson

If the 4:1 limit for fill slopes is going to be a rare situation then you should be able to just use DaylightToRoW.  If you expect it to happen more often then we would have to use generic links and a ConditionalCutOrFill to test it and make a decision about how to proceed.

 

For cuts you can use a generic LinkWidthAndSlope to build the ditch foreslope then DaylightToRoW to finish.

 

Steve
Please use the Accept as Solution or Kudo buttons when appropriate

Valued Mentor
fcernst
Posts: 1,089
Registered: ‎01-07-2011
Message 13 of 18 (103 Views)

Re: subassembly help

08-22-2013 07:30 PM in reply to: arobberson

The DaylightInsideRow is the one you need for your scenario of checking for Maximum allowable slope while trying to stay within the ROW. 

 

The DaylighToROW that Steve mentions does not have this capability. 

 

You could learn SAC or .NET and take a bunch of Company down time and create one, but why? You have already paid for this functionality and want to make a living. 

 

Please give your real world feedback here to the Civil 3D leadership: 

 

http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=1109794

Fred Ernst, PE
C3D 2015
Ernst Engineering
www.ernstengineering.com
*Expert Elite*
sboon
Posts: 2,075
Registered: ‎11-08-2005
Message 14 of 18 (89 Views)

Re: subassembly help

08-22-2013 08:29 PM in reply to: fcernst

fcernst wrote:

The DaylightInsideRow is the one you need for your scenario of checking for Maximum allowable slope while trying to stay within the ROW.


The OP specified that in a cut scenario the daylight is to match existing ground at the RoW, without any specified slope.

 

My interpretation of the OP specifications for a fill is that the daylight is to match existing ground at the RoW, as long as that slope is between 30:1 and 4:1  From the information provided it isn`t clear what is supposed to happen if these limits are exceeded.

 

I am having difficulty understanding how DaylightInsideRoW could be used to satisfy these requirements.

 

Steve
Please use the Accept as Solution or Kudo buttons when appropriate

Distinguished Contributor
arobberson
Posts: 114
Registered: ‎12-05-2007
Message 15 of 18 (87 Views)

Re: subassembly help

08-22-2013 08:34 PM in reply to: arobberson

ok so in a fill condition it it can be level to a max slope of a 4:1 i will adjust the road way profile so it does not exceed the 4:1 slope or it could make a vertical wall at that location

Allen G Robberson
arobberson@meai.com
*Expert Elite*
sboon
Posts: 2,075
Registered: ‎11-08-2005
Message 16 of 18 (74 Views)

Re: subassembly help

08-22-2013 09:44 PM in reply to: arobberson

Try the assembly in the attached drawing and see if it will work for you.

 

The assembly does a series of tests to decide how to build the daylight.

  •  If the shoulder is in cut and the RoW is above the shoulder then it builds a ditch and cut slope to the RoW.
  •  If the shoulder is in cut but the RoW is lower than the shoulder then it builds a fill slope to the RoW.
  •  If the shoulder is in fill but the RoW is higher than the shoulder then it builds a ditch and cut slope to the RoW.
  •  If the shoulder is in fill and the slope down to the RoW is flatter than 4:1 then it builds that slope.
  •  If the shoulder is in fill and the slope down to the RoW is steeper than 4:1 then it builds a 4:1 slope and vertical link down to the surface.

I've attached a few screen shots showing some of the resulting sections.

 

Left side shoulder is in cut, but the RoW is low enough to allow for a fill slope.  Right shoulder and RoW are in cut.

Clipboard01.png

 

Left shoulder is in fill, and left RoW is too low for the 4:1 slope limit, so a wall is added.  Right shoulder is in fill but the RoW is too high, so a ditch and cut slope is added.

Clipboard02.png

 

Left side is in fill and a default slope is possible.

Clipboard03.png

Distinguished Contributor
arobberson
Posts: 114
Registered: ‎12-05-2007
Message 17 of 18 (69 Views)

Re: subassembly help

08-22-2013 10:12 PM in reply to: sboon

looks good i will give it a try tomorrow

Allen G Robberson
arobberson@meai.com
Valued Mentor
fcernst
Posts: 1,089
Registered: ‎01-07-2011
Message 18 of 18 (50 Views)

Re: subassembly help

08-23-2013 04:46 AM in reply to: sboon

I am having difficulty understanding how DaylightInsideRoW could be used to satisfy these requirements.

 


Oh yes, you're right. I see now he does always want to tie directly on to the ROW.

 

I guess I am too used to trying to always economize earthwork within the ROW.

 

 

Fred Ernst, PE
C3D 2015
Ernst Engineering
www.ernstengineering.com

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