ROAD DESIGN TUTORIAL FROM START TO FINISH

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road design with civil 3d 2015
General Workflow

1. Create existing surface conditions. Road design typically begins by creating a surface for the existing conditions and which forms a baseline for further design and analysis of the new roadway; existing information about the topography, utilities, parcels and other potential impacts to the route design is also collected.

2. Design alignment. An alignment defines the main horizontal route that typically represents the construction baseline of the roadway. Alignments may be created using survey information collected from the field or from existing 2D-CAD elements such as lines and polylines. Optionally, they may be created using the wide variety of alignment creation and layout tools.

3. Apply design criteria. Determine the proposed design and the design constraints that are to be placed on the alignment. This includes speed and superelevation parameters. Design criteria may be assigned at the onset of the alignment layout or at any time during the design process. Warning alerts will aid in the swift design of a conforming alignment.

4. Generate existing ground profile and design grades. Display existing ground surface data for the design alignment and create the finished grades. Finished grade profiles may be created graphically using profile creation tools, or generated from a best fit analysis of existing entities or from information from an external file.

5. Construct assemblies. Assemblies define the cross-sectional component of the design and are built by connecting individual subassembly objects, thereby helping to simulate the geometry and material makeup of the road as well as helping to define how it interacts with surrounding features along the route. The subassemblies are selected from the prebuilt libraries contained in the Civil 3D Tool Palette. Custom subassemblies can also be created using the Subassembly Composer.

6. Build the corridor. Corridors are the resulting dynamic 3D model representation built from the combination of horizontal, vertical and cross-sectional design elements.

7. Perform analysis of the resulting model. Corridors may be used to calculate earthworks and quantity takeoffs, to perform sight and visual analysis, to generate surfaces, and to extract information for construction purposes. Individual corridor sections may be examined and edited to help accommodate unique or localized design conditions.

8. Perform design optimization of the already analyzed model. To achieve a better design it may be necessary to adjust one or more of the corridor components. For example, you can adjust the design profile to better balance cut and fill volumes. Edits may be done using a variety of methods, such as grips, via tabular inputs, and with object-specific editing commands.

Personally(user standard) i use the following workflow when performing road design in AutoCAD Civil 3D:

1. Import points.

2. Create existing ground surface.

3. Create the proposed alignment.

4. Modify proposed alignment.(Label properties and curves)

5. Create the proposed profile and add data bands.

6. Modify the proposed profile. ( Cut and fill volumes and design levels)

7. Create the proposed assembly.

8. Create corridor.

9. Create superelevation views.

10. Modify profile. ( Add superelevation data)

11. Create finished ground surfaces from the proposed alignment.

12.Create sample lines group.

13. Compute materials.

14. Create multiple section views.
this video was created by by my senior collegue At the department of geomatics ahmadu bello university zaria nigeria.. thank you sir abdul for allowing me to post your video on my channel.. the video has helped me thus far, i sure bet you it will help you more thank you very much pls dont forget to hit the subcribe button

#HowtoPlanforaSuccessfulRoadDesignProject
#HowtoDesignaRoad
#HowtodesignaroadfromstarttofinishinCivil3D
#HowtoPlanforaSuccessfulRoadDesignProject

[adeboabiodun]

This is the best online video with self-explanation I've ever come across on youtube. God will continue to increase your knowledge.

[oyekanmimosesoyedele]

God will bless you with the video, really ease my stress.

[bahrammoradi]

You have done a great job, one of the best and useful video I have ever seen in YouTube, only just least of people have this vision to create great content like this. God bless you and best for you

[abdulrahmanabdullah]

Great Job brother you've done a very wonderful job more Blessing Biithni Allah

[manoharsingh]

I like your way of expressing. Thanks lot to make vedio

[selimnassari]

Very useful presentation. For a beginner a good birds eye view for understanding the concept of the program.

[bobbyaipanga]

very helpfull.. just started my first project and im a bit new to Civil 3D. your video is very very helpfull... thankyou heaps!!

[ILY]

Great video! Super helpful for engineers who are just starting out :)

[levibezaleel]

what can I do so that the surface profile can display all the chainage points bcos the one I got is skipping some chainages, I don't if it's setting from the surface or its the profile that has a problem.

[jonathanshingala]

Chief you have simplified these things, thanks very much

[Collinceoloo]

I really appreciate your work it made everything look easier thank you 😊😊

[BayakGLuok]

Can you share with us the data so that we can use them for practice

[engammarsherif]

thank you engineer its short cut cleared lesson moreover you have to select alignment from poly line if you draw a poly line also when you create surface better to select the properties and first of all you may explain how you can prepare the excel text files or cad drawing or contour pints to import as data using for designing
thank you very much am glad to watch for African engineers in youtube we need more and more 🌹eng Ammar from Sudan professional in roads and infrastructures work

[yahyamuhammed]

Really learnt something here but don't have a system to practice along with. I really appreciate this educative video, Thanks alot

[teshomenegede]

That is good illustration especially for Bigners.

[jehoshaphattv]

Which topic will you guys want me to work on now the ball is in your court let's ge t it Rolling

[victorokenwa]

Plz how can I edit the existing ground level
The text label is too tiny
I want to increase the size but it's not working
Plz can anyone help me plz🙏🏼

[nothing-dkgw]

you didn't discuss the superelevation, superelevation shows you mistake if there's any.

[josepheleojovictor]

Bro I’m having a project to design a 2km road. The man gave Us some contour maps to use. Can one obtain or extract points from a contour map?

[henryk]

Hey in case of a 100km road, do i still create the centerline using polyline or there is an automatic way??