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Neilw
Posts: 2,199
Registered: ‎09-04-2006
Message 21 of 48 (279 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-09-2012 07:36 PM in reply to: ralstogj

I can't say there is NO way to do it with a corridor, but even if there is, when you consider the amount of setup and the complexity involved in managing and manipulating it, at some point you have to pause and ask: is it really practical to do grading that way? For larger sites it would get really hairy.

 

How simple it would be if gradings could handle mitered corners.

Neil Wilson (a.k.a. neilw)
Infrastructure Suite/C3D 2013, LDT 2004, Power Civil v8i SS1
WIN 7 64 PRO
HP Pavillion h8xt, i7 2600, 12 GB
RADEON 6450, 1 GB
http://www.sec-landmgt.com
Distinguished Contributor
annw2
Posts: 1,262
Registered: ‎03-07-2006
Message 22 of 48 (265 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 03:04 AM in reply to: mikeshick

I hope you don't design roads.  General rule of thumb is to not have driveway cross slopes change to avoid havnig storm water run across the pavement and cause accidents.

Ann Wingert, P.E.
Distinguished Contributor
mikeshick
Posts: 454
Registered: ‎07-06-2001
Message 23 of 48 (263 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 03:10 AM in reply to: annw2

Unfortunately, Ann, I believe you missed the entire question altogether.  It's also unfortunate that you make a derogatory comment about another professional with so little information about them.

 

But thanks for your interest.

Mike Shick
www.medesigns.us
Distinguished Contributor
annw2
Posts: 1,262
Registered: ‎03-07-2006
Message 24 of 48 (260 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 03:55 AM in reply to: Neilw

The intent was to be more joking around than critical. 

 

I do get scared with a lot of not seeing the forest for the trees in a lot of the newer design.

 

I also get scared when I see designs that miss the concept that water doesn't flow up hill and a lot of poorly desinged roads in this area that are accidents waiting to happen from  water flowing across the road.

 

I just had to do a review of a detention design that was approved by a kind older reviewing engineer.  The basin had essentially been designed with two oultets as one of the inlets supposedly flowing into the basin had a top of frame elevation less than half way up the berm.  The scarey thing is I see this about every couple years.

 

This makes me nervous about stormwater issues.

 

 

Ann Wingert, P.E.
*Expert Elite*
Joe-Bouza
Posts: 4,746
Registered: ‎12-15-2008
Message 25 of 48 (234 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 06:21 PM in reply to: Neilw

that is a grading.

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

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Joe-Bouza
Posts: 4,746
Registered: ‎12-15-2008
Message 26 of 48 (233 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 06:26 PM in reply to: ralstogj

No issue here. Nielw said gradings cant handle mitered corners...

 

<snip> Gradings are unstable and prone to corruption and crashing. Also they are so slow to process that I hate using them. Too gradings cannot handle mitered corners so if you have mitered curbs with sidewalks you can't model them with gradings.

 

My image shows a grading of a sidewalk an curbs with a mitered corner. I know the corner will never be 2%.

 

I'm trying to understand why NW sees miters not doable with a grading.

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win7 OS
*Expert Elite*
Joe-Bouza
Posts: 4,746
Registered: ‎12-15-2008
Message 27 of 48 (231 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 06:28 PM in reply to: Neilw

Neil, My earlier post shows (what I think is) a mitered corner and I used a grading to do it. Where do you see a problem? can you provide an example?

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win7 OS
*Expert Elite*
Joe-Bouza
Posts: 4,746
Registered: ‎12-15-2008
Message 28 of 48 (228 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 06:34 PM in reply to: annw2

To Para phrase the grateful dead..... If the thunder doesn't get you then the lightning will. :smileywink:

 

Old habits die hard.

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win7 OS
Valued Mentor
ralstogj
Posts: 605
Registered: ‎10-01-2006
Message 29 of 48 (227 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 06:45 PM in reply to: Neilw

Ok Joe, Neil

 

What the hell lets keep this discussion going grading best practice ideas and jump to the end of the grading process.

 

I find mostly that a small jobs mean small budgets and other consultants not using Autocad

 

What do we give back to the them at the end if they are not using autocad, but can take a dwg exploded featurelines as 2d or 3d polyines is the only option I see?

 

I posted thoughts on a process I used today here

http://c3dxtreme.blogspot.com/2012/01/sharing-data-with-other-cad-programs.html

 

 Any best practices ideas thoughts

 

Regards

Justin Ralston
http://c3dxtreme.blogspot.com/
*Expert Elite*
Neilw
Posts: 2,199
Registered: ‎09-04-2006
Message 30 of 48 (221 Views)

Re: Grading Small Lots - Best Practice Suggestions?

01-10-2012 09:53 PM in reply to: Joe-Bouza

How did you make that mitered corner Joe? In my screen cap I created gradings from an edge of pavement featureline outward to the sidewalk. First I add the gutter, then face of curb, back of curb and sidewalk. Did you perhaps start at the back of sidewalk and grade inwards toward the pavement? That might work in that scenario, but inevitably you'll have to go the other direction. What happens if you do that?

Neil Wilson (a.k.a. neilw)
Infrastructure Suite/C3D 2013, LDT 2004, Power Civil v8i SS1
WIN 7 64 PRO
HP Pavillion h8xt, i7 2600, 12 GB
RADEON 6450, 1 GB
http://www.sec-landmgt.com

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