Modelling parking in civil3d

[Anonymous]

Hi..
Please who can help me to model parkings without future line

[ArchD]

I model parking lots all day long. If you can find an easier way to  model them without using feature lines and sites, I would like to know about it also. 

Parking lots in Civil 3D are not the easiest thing, but I believe feature lines and sites are the most efficient way to do it at the moment.

[MMcCall402]

I've been doing it with feature lines and I too would be interesting in hearing about how others are doing it.

I have found that labeling the feature lines with elevations at each end and grade values with direction at their mid-points to be a huge benefit while designing. The labels then give you feed back from the quick elevation and grade tools for feature lines.  Feature lines get added to a surface as breaklines and that surface is used for plan elevations via surface labels.

[wfberry]

Several people use corridors.  Corridors can be made of only curbs with a back slope.  Using an alignment run them all around the perimeter of the parking area.  Use FLs in breaklines to the non-curb catch basins.

Biil

[MMcCall402]

I've heard of the corridor approach but I've never tried it myself.  My last site had about 85 curb lines, so that would produce 85 alignments. I can't imagine 85 profile views and design profiles for each so the profiles would need to be derived from a design surface built with feature lines as break lines. Edit the feature line and the design surface rebuilds, then the profile of the design surface updates and the corridor rebuilds from the updated design surface profile, then the final surface updates as it has the corridor surface pasted in and supplemental feature lines and spot elevations. Surface labels for grade labels on the plan update. Seems foolproof to me.  :oP   Revisions to the layout feel like they would be painful

[Joe-Bouza]

Corridors actually use fl behind the scene

Feature lines are what make Civil3d Civil3

What other object do you have in mind

[cwr-pae]

So 85 feature lines are better than 85 alignments? I grade parking with corridors by preference. In general I use 1 alignment and profile down the center (sometimes offset, depends on the lay out). The parking extends beyond the curbs. The curbs are modeled by a separate corridor using alignments with profiles extracted from the parking corridor surface (no need of profile views except as a visual confirmation of design). The parking and curb surfaces are pasted into a finished grade surface. Really complex/large lots require multiple baseline alignments and profiles as well as some target alignments and profiles.

[ArchD]

I would love to see a small example of your work that include low spots for structures, high points, and islands if you have a simple surface laying around.

I really would like to find a nicer way to do parking lots, and if corridors achieve it I'd like to go that route. I'm just struggling to see a clean way of doing it that feature line grading can't do quicker and cleaner.

[cwr-pae]

Here is an old small one. Its one of the first I did by corridor so I have learned and improved techniques, but it shows the main concepts. I don't have near as many assemblies, I think now this would be 2 or 3 curbs assemblies, 1 drive and 1 parking.

[cwr-pae]

Dang it. I had to open it to clean some identifying stuff out, its in 2018. Will see if I can get it open in 2015 and re post, if not, you'll have to upgradeto view it :

[cwr-pae]

2017 is an isolated oddball format, I normally wont upgrade till the year its named for starts, but this one I would (lol 1 month left, does it matter?)

[ArchD]

We are upgrading very soon so I 2018 will be fine. Probably won't be able to check it out for a month or so, but I'm sure it'll still be helpful for me. Much appreciated.

[cwr-pae]

2015 format

[ArchD]

That's a pretty simple parking lot and I got some pretty good ideas from it that I'm going to experiment with when I get the chance. 

I want to get some feedback from you if you have the time on surfaces that have a bit more complexity. 

I've attached an example. If you were tasked with creating a model of a site such as this, would you be able to do it using corridors and if so, I would love to hear your ideas. 

In this surface I created a corridor for the main roads, but that ends only at the edge of pavement. All curbs and sidewalk ramps are created via feature lines. I do not even know where to begin to include ramps, ADA crossings, and high/low points based on varying grades from the low points/structure rim elevations using corridors.

I maintain a separate drawing that has my target surfaces which is essentially my structure rim outlines at elevations with grading radiating outward. In that same drawing I have TIN volume surfaces for my intersections to give me my high points. Once I have those, I data shortcut those into my model drawing so that I can drape my edge of pavement on, then I run a lisp that does curb offsets based on the curb type.

To do the islands in corridors, it looks like using draping feature lines as base lines would be the easiest so that additional alignments would not be needed and those feature lines could be grouped via sites. 

[cwr-pae]

If you think about how the lots actually get built, they are basically multiple roadways built adjacent to each other. Try one and see, ask questions in the forum  and there is a good chance i'll be one of those who answer.

The one you posted would be pretty easy with corridors. The long parking would be a single alignment & profile down the center. The assembly would probably have a 2 lanes to either side the break the slope down the drive aisles. It appears the site is pretty flat so I don't think I would need much in the way of edge controls. With alignments for the curbs (by cutting profiles from the parking corridor I only have to manage the horizontal aspects of the curbs, vertical is taken care of dynamically).

Note I would probably have the parking corridor extend to the farthest edge of the parking and grade over that with the curbs and sidewalks. Alternatively I would use width targets to a target line that follows the outer edge of the parking except at radiused areas, those I would extend passed the edge to at least as far as the farthest radius point. This is so the curb alignments has a surface to cut grades from.

Sidewalks can be modeled by corridors. either parallel and attached to the back of curb, or separately similar to a road. 

Curb cuts for ramps and the ramps can be modeled with the corridors, but they get a little complicated. For now I would suggest doing them manually with FL. The lot I posted had 2 curbed islands that are missing. I just traced the 'flowline' of the curb with a poly , converted it to an alignment, cut a profile on the parking corridor surface and added as a baseline to the curb corridor. Changes to the parking surface would update the surface, thus update the profile and then the curb corridor and the final surface. I do use manual rebuild on the corridors to save time, or even the most minor change to parking would update everything.

I have my corridor set my low point elevations for drainage inlets by control of profiles. Or by use of targeted FL. With alignment/profile combos you can have the alignment read and label in plan view low points/high points from the profile.

In all of this I use Feature Lines, Polylines, Alignments and profiles as targets as seems best at the time, sometimes swapping one out for another as things develop. I don't use FLs as baselines, I have had them crash out of the corridors a few times and don't trust them for that any more.

[Anonymous]

Thank you very very very much

[Anonymous]

Hello good ay sir,

                              sir can you please tell me hoe we design parking lot. I try to many time but i was not successful. Can yon please sent me a perfect tutorial link. One more thing I always stuck so please if you can then help me.

Thanks lot