Project 2 - Lane National Highway Roadway Design in Civil 3D

Q. Develope the road geometric design for 2lane NH concrete road with paved shoulder for 80kmph design speed from the provided data

1) Creation of surface.

Method 1 :- By Eg surface XML

Go to insert > Land XML > go to location > Eg surface XML saved location > select surface xml >

Click on open > click ok

Method 2 :- By using Contour data

Click on file (Menu bar)> click on open> Go to saved contour data location > select SL Contour data > Click on open >Contour data appears on screen

To create surface

Select contour data single left click > type (ctrl+C) in command bar >drawing 1 > go to edit > select paste to original co-ordinates

In toolspace bar, select surface (right click) > create surface > eit the surface name (Surface Eg) > click on ok

Surface > Surface Eg > defination > select countours (right click)> add > click on ok

select all countours > enter

Type LAYOFF command bar and click on major & mineor contour > esc

Surface is created

2) Alignment & Profile design

Go to alignment > create alignment by layout

In create alignment tool box

give the name type in general click on ok

Alignment layout toolbox will come

To create alignment first set geographical co-ordinates system

Go to setting > click on saved project name (right click) > edit drawing setting (select co-rdinates system code)> apply>ok

Go to geolocation > map > select map aerial

Method - 1

Go to alignment >create alignment layout

Give the name type the click on ok

In alignment layout tool select fixed line (two points ) > draw two tangent

select free spiral-curve-spiral (two entities)> drwa spiral*-curve-spiral b/w two tangent

Alignment is created

Create profile view

Go to profile > create profile from surface > click on saved surface name > click on add > draw in profile view

Give the profile view name, profile view style, stange range, profile view height, data bands then click on crate profilr view.

Create Profile

Go to profile > create profile by layout

create profile - draw new toolbox will appear give name, profile label set, profilr style as per requirement > click on ok

In profile layout toolbar

select fixed tangent (two points)

Insert (PVI) Select PVI click on profile > Esc, select free vertical curve (parabola)

select first entity & second entity as well as specify curve length.

Creation of Assembly & Sub assembly

Creation of assembly

Assembly is nothing but typical cross section

Go to corridor > select create assembly

Give the assembly name then put on screen with rectangle fr our reference

Creation of Sub Assembly

Select the assembly > click on tool palette > lanes > lanes from redmedian1 > click on assembly (on circular point)

Click on assembly > subassembly properties > select parameters

Lanes width = 3.5 m

Cross slope = 2%

Paved 1 depth = 0.280m

Paved 2 depth = 0.150m

Paved 3 depth = 0.200m

Paved 4 depth = 0.500m Click on apply ok

Click on sub assembly > tool palette > shoulder

Corridor devalopment & Section line or sample line

Click on corridor > create corridor

give corridor name, alignment, profile, assembly, & target surface, then click on apply > ok > rebuild corridor

In toolspace > prospectus > go to corridor (right click) > properties

In information > select object style as edits

Surfaces > add surface top

add bottom surface and datum

add breakeline > check both

overhanging > toplinks & bottom links, then click on apply > ok

Creation of Detailed cross section & generating quantity report

To create cross section

Click on section > create multiple secion views

In general

Select alignment select sample line group name, select view name, section view style

In section placement - select draft

offset range - automatic

section display option- In cut - hatching ansi 31 size 2

In Fill - hatching ansi 38

data bands - design & existing levels with offsets

Set band properties

Surface - 1 Surface - 2

1.Corridor top Corridor top

4.Corridor top Corridor top

Section view table

type :- material, click add > ok

click on section view, cross section is created

Quantity Report

Click on section>compute materials

Select alignment name

select sample line group name > ok

Compute material toolbox will appaear

quantity take off criteria = standard

EG = Surface 1

Datum = bottom surface

Again,

Click on section>compute materials

Edit mterial list>apply >ok

click on section > generate volume report

In report quantities

Select alignment

select sample line group

Select material list

Select style sheet :- earthwork > ok