• Civil 3D

Modify offset profiles

Modify crossfalls on offset profiles.


00:04

Panon

00:04

zoomed the drawing to this curve on the Recolor

00:07

boulevard alignment.

00:09

As we drive around this curve,

00:10

we want the left side of the road to be at minus two per cent.

00:14

But the right side to tilt up a plus two per cent,

00:19

we can add super elevation to a road by assigning it to a centerline alignment.

00:24

We'll learn more about that during detailed design.

00:28

But here we're going to use our offset alignments to add a manual super elevation.

00:33

You can use this method to transition cross fall from one side of

00:37

a road to another perhaps for allowing a change in the drainage,

00:41

select the right hand offset alignment.

00:43

And then on the ribbon choose offset profile properties

00:48

in the profile properties.

00:50

Click on the offset parameters tab

00:53

In here, we can add cross slope regions,

00:57

click the plus to add a new region

01:00

for the station of the first region.

01:02

On the command line

01:04

type

01:07

The slope at this point will be minus two

01:11

on the curve at station 300.

01:15

Here the slope will be plus two as we are transitioning

01:20

as we come along the road and we approach the end of the curve,

01:23

we want to transition back to a crowned road.

01:27

The next station will be at 1100.

01:31

This will remain at 2%.

01:34

And then finally, for the last region at

01:36

station 1500

01:40

the road here will transition back to minus two. At this location.

01:46

You can review the regions in the dialogue and edit them in here.

01:50

Click OK to save the changes.

01:54

Go to the profile view,

01:56

the horizontal curve on the alignment

01:59

is here.

02:00

And if we look at the profiles, you could see that the two sciam

02:04

profiles are the offset profiles,

02:08

you can see where they transition apart at the start of the curve.

02:12

The left side is at minus two per cent all the way through.

02:15

But the right side transitions to plus two per cent

02:19

and then back to minus two per cent

02:21

at the end of the curve.

02:24

If I make a change to the centerline profile,

02:27

then when I make the edit, the offset profiles will move with it.

Video transcript

00:04

Panon

00:04

zoomed the drawing to this curve on the Recolor

00:07

boulevard alignment.

00:09

As we drive around this curve,

00:10

we want the left side of the road to be at minus two per cent.

00:14

But the right side to tilt up a plus two per cent,

00:19

we can add super elevation to a road by assigning it to a centerline alignment.

00:24

We'll learn more about that during detailed design.

00:28

But here we're going to use our offset alignments to add a manual super elevation.

00:33

You can use this method to transition cross fall from one side of

00:37

a road to another perhaps for allowing a change in the drainage,

00:41

select the right hand offset alignment.

00:43

And then on the ribbon choose offset profile properties

00:48

in the profile properties.

00:50

Click on the offset parameters tab

00:53

In here, we can add cross slope regions,

00:57

click the plus to add a new region

01:00

for the station of the first region.

01:02

On the command line

01:04

type

01:07

The slope at this point will be minus two

01:11

on the curve at station 300.

01:15

Here the slope will be plus two as we are transitioning

01:20

as we come along the road and we approach the end of the curve,

01:23

we want to transition back to a crowned road.

01:27

The next station will be at 1100.

01:31

This will remain at 2%.

01:34

And then finally, for the last region at

01:36

station 1500

01:40

the road here will transition back to minus two. At this location.

01:46

You can review the regions in the dialogue and edit them in here.

01:50

Click OK to save the changes.

01:54

Go to the profile view,

01:56

the horizontal curve on the alignment

01:59

is here.

02:00

And if we look at the profiles, you could see that the two sciam

02:04

profiles are the offset profiles,

02:08

you can see where they transition apart at the start of the curve.

02:12

The left side is at minus two per cent all the way through.

02:15

But the right side transitions to plus two per cent

02:19

and then back to minus two per cent

02:21

at the end of the curve.

02:24

If I make a change to the centerline profile,

02:27

then when I make the edit, the offset profiles will move with it.

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