Please ask for BIM if anyone asks. Not the fake, crappy BIM that Autodesk calls Civil 3D, but real BIM. I’d love to model a site with curbs, gutters, pavement, sidewalk, cross gutters, retaining walls, curb ramps, and the like. Instead I’m managing surface labels to make sure I’m using the correct expression. It’s really disappointing to get a monthly email telling you to watch how Civil 3D and BIM can make your designs better, when in reality the program sucks at BIM.
It would be great to be able to easily label the top of wall, top of footing, and finish surface on both sides of the wall without being totally lost on where to put the stupid surface labels with expressions to get the correct elevations. Do I really need to manage labels to do the design and convey the design intent? Shouldn’t I be able to use the M in BIM to do the modeling? I’m beginning to think BIM, in respect to Civil 3D, means Building Is Missing. I certainly have a hard time building any of my, or other’s, designs in Civil 3D.
I recently was working on a project which is adjacent to another project in the bidding process. I thought hey I can model their design in Civil 3D. Unfortunately it became clear that using feature lines as curbs is sorely lacking. My tie in point was going to be a short distance into their improvements. How the heck am I supposed to model that? It’s definitely more difficult then it needs to be. Draw the feature lines representing the curbs, trim to the join line, making sure none of the elevations get inadvertently changed. Then hope and pray when you come back to the model that you didn’t accidently adjust the tie in elevations. Why can’t there be a curb object? Why can’t there be any of the objects we design?
This concludes my rant for today. Remember to ask for BIM, because if you don’t ask for it, you’re probably not going to get it. I have very little pull in getting Autodesk to add features, collectively we might just be able to make a business case for BIM in civil design.