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Modify crossfalls on offset profiles.
Type:
Tutorial
Length:
3 min.
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.
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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