Residential Design using Profiles

[simonrr]

I am designing a subdivision and the first thing I am doing is laying out the streets. I am matching the proposed street as close to the existing grade as possible. Next, I am creating offsets for the Edge of Pavement(-0.25'), Back of Curb(-0.08'), and Back of Sidewalk(+0.25')lines. The number in the parentheses is the difference in elevation from the Finished Grade (FG) of the Road Centerline. The question I have is the following: Is there a way, when making these offsets, to attach the proposed elevation to the offset based on the Finished Grade Centerline Elevation that I have defined using the street profile? Meaning, when I offset to the Edge of Pavement (-0.25') from the FG Centerline (i.e. elev=700.00), is there a way the Autocad program can output an elevation of 699.75 at the same station as the 700.00 elevation.....

Can someone please help.....thanks!

 

[rxj]

1. Convert your road centerline to a 3d polyline by using the command from civil design menu "Terrain -3d polyline-create by elevation". You know the elevations from from your road profile. Once you have your 3d ployline, using the command "terrain - 3d polyline - create curb" you can offset the 3d line and enter the diffference in the elevation.

 

[simonrr]

I have tried to use the Terrain-3D commands that you mentioned and I am not having a problem with the setup. I am having a problem with reading the elevations for the line that I had offset, which is the curb line. Is there a way I can outut certain elevations at certain points for the offset lines??

 

[dtd]

Use a dway Template
It takes some practice but is very useful.
If you follow the steps correctly you can create proposed road spot grade points for cross-sections as well as all of your proposed road contours.
All you need to start off with is a propsed road alignment and profile.

I hope this helps

 

[dtd]

Use a roadway template.
It takes some practice but is very useful.
If you follow the steps correctly you can create proposed road spot grade points for cross-sections as well as all of your proposed road contours.
All you need to start off with is a propsed road alignment and profile.

I hope this helps