Those sections read well, don't they.

There's some evidence of Asian content.  Could it be this is a program not in common

use in North America ?

sketchup?

Could definitely be Revit w/ some photoshop.

It looks like Archicad.  You can do same in Archicad, without  Photoshop involvement.

Looks like Illustrator to me.
 

It does look a lot like ArchiCAD, except for the continuous-border profile lines on the 3D planimetrics. I don't know of any software that can do that reliably.

Doesn't seen like anything that couldn't be done easily with rhino, and brought into illustrator with perhaps a little photoshop. For the continuous outline, "meshoutline" in Rhino and then "make2d".

yes, we know how to do it.. just wondering if there was a quicker way to put in the shadows etc.  It would be time consuming to do all of that manually, jumping between programs

If you build a complete model in Archicad, all you need to do is, turn on option, to show shadows in elevations, sections or 3D cutaway, and you are done.  For shadows or hatches, no additional efforts are necessary. Unlike Revit, you can draw any 2D graphics on elevations, sections, without using any additional software.

I cannot figure out how to attach the image here, to show you small sample I found in my old staff.

i've seen alex hogere's turtorials that is definitely photoshop the building could have been designed in a bunch of different programs revit,sketch up,archicad,illustration, etc. There is defintely some photoshop in there how else are they going to input people into the drawing to show some live within the rendering.

It could be Photoshop too, no one can say for sure, but input of people, cars or trees in the same software is not a problem at all, including 3D views. I have done that countless times. 

Looks like it could be REVIT to me, with or without Photoshop.

@access

Mind sharing where this project was referenced from?

Archicad

For Shadows you could try the "parallel projections" In Sketch Up, with the Shadows "on". 

CAD