Edit profile geometry

00:04

We're now going to edit the Mcallister Boulevard profile

00:07

so that we can meet our design standards.

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You can see by reviewing the warning symbols that this curve is too short.

00:14

It should be a minimum length of 350 ft.

00:19

Similarly,

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this curve is also too short,

00:23

doesn't meet the minimum K value of 115.

00:28

We're going to carry out some edits graphically to adjust these curves

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select the design profile and zoom into the second intersection point,

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select the intersection point grip

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and snap it to the guide circle marker.

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We're creating a larger gap between our curves to give us more room to adjust them.

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Now use the right hand circle grip on the end of the curve

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and drag it out towards the right hand side. As shown,

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you can see that the curve warning has now disappeared.

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Pan across to the start of the profile,

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using the left hand circle grip on the first curve

01:14

will drag it to the left

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as close to station zero as we can.

01:20

The warning on that curve has now been fixed as well.

01:24

You may need to make your own adjustments and to resolve these warnings

01:29

pan across to the right hand. End of the profile

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here, we can see that the ending grade is only 0.24%

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and doesn't meet our minimum requirement of 0.5%.

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Also, at this end, we need to tie our profile levels into the edge of the roundabout.

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On Sycamore Street.

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We'll not be able to carry out these edits graphically. So we'll use the layout tools

01:54

select the profile and from the ribbon. Click on geometry editor.

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The layout tools use the add intersection point button

02:02

and snap to the surface profile at the edge of the roundabout.

02:07

Now we'll use the profile grid view to edit the gradient of the tangent,

02:13

open the profile grid view

02:16

and looked down the grade in column.

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The grade we need to edit is now set at 0.25%. We need it to be 0.5%.

02:28

We're editing grade in

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as this will hold the end of the tangent fixed and move the start of the tangent

02:34

type in 0.5.

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You can see the new grade update on the screen and the warning marker has gone

02:42

now that we've resolved the mcallister boulevard profile.

02:45

We can look at Sycamore heights

02:48

use Regen to display the warning markers.

02:52

Here, we can see the curves are too short

02:55

and tangent grades are too shallow.

02:58

Before we start adjusting these, we need to make an edit to the alignment. In plan

03:03

pan a cross to the start of the Sycamore Heights alignment.

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You can see here that it doesn't quite meet the mcallister Boulevard,

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use grips and a nearest snap to place the

03:16

start of the alignment back onto mcallister Boulevard.

03:20

Go back to the profile view

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because of the edit.

03:25

We've just made the alignment and also the profile will now be slightly longer.

03:30

Civil 3D has adjusted the profile to meet the new alignment length. But in doing so,

03:36

the position of our intersection points may have changed,

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use a region to refresh the warning symbols.

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If you hover over one of the circle warnings,

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it tells you that a horizontal geometry change may have affected the profile

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and advises you to check it.

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We can dismiss these warnings by selecting the profile

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and use dismissed notifications on the ribbon

04:01

at the left hand end of the alignment where it meets Mcallister Boulevard.

04:05

We need our design profile to meet the levels of

04:08

the Mcallister Boulevard profile to tie the two roads in.

04:12

I'll demonstrate this by adding a marker

04:14

to the Mcallister Boulevard profile view.

04:18

I'm going to add a profile crossing marker to the view.

04:22

This will enable me to see where the sycamore heights

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design profile level is in relation to Mcallister Boulevard.

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I'm going to select the Sycamore Heights alignment in plan

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and add a marker for the sycamore heights layout profile.

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Now, in the profile view, you can see a label and a marker

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that shows where the current elevation of sycamore

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heights is in relation to Mcallister Boulevard.

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It's clearly too low

04:49

back into sycamore heights. Profile view.

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We're going to carry out the same procedure.

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Adding a profile crossing marker.

04:57

Former Callister Boulevard,

05:00

select the profile view and on the ribbon under launch pad,

05:03

choose add crossings to profile view

05:07

in plan,

05:08

pick the mcallister boulevard alignment and press

05:12

we adding labels for Mcallister Boulevard where it meets sycamore heights.

05:17

For each profile, we have a marker style and a label style.

05:22

Note. The elevation options are set to use object.

05:26

It will get the elevation of the marker from the profile.

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We don't need to display the existing ground marker

05:33

as we already have that drawn as a profile,

05:36

we only want to mark the elevation from the design profile.

05:40

So deselect mcallister Boulevard but select the design profile layout one

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click, OK. And go back to the profile view

05:51

in the view.

05:52

The marker has been added but it's labeled twice

05:55

once for the alignment and once for the profile

05:58

delete the uppermost label,

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also delete the lower grade brake label so that

06:04

we can see the crossing marker more clearly.

06:09

The marker shows that we need to move the profile up

06:13

using the grips, snap the end of the profile to the end of the marker.

06:18

Now our roads tie in

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pan across to the first intersection point

06:25

and drag it up as shown.

06:28

This will help to reduce the amount of material

06:30

fill required for the road in this area,

06:35

drag the curve end out as shown

06:39

Panna cross and moved the second intersection point up half way towards the ground.

06:46

At the end of the profile, we need to tie the road to Sycamore Street.

06:51

The short straight at the end of the surface profile is the cross fall of the road

06:58

using the layout tools at an IP at the edge of Sycamore Street.

07:03

Finally, we'll resolve the curve warnings using the profile grid view.

07:09

Edit the K values in the table that are showing errors,

07:13

set them to 357 as required by our standards,

07:19

make sure there are no remaining warnings shown in the grid view.

07:25

We have seen how we can use a mix of graphical editing using grips

07:29

and the layout tools with the profile grid view

07:32

to adjust our design profiles,

07:34

address all of the standards checks we have

07:36

in place and tie our road elevations together.

07:41

A quick look at the mcallister boulevard profile view

07:44

confirms that sycamore heights is now at the correct elevation.