Analyze the existing conditions for constructability

00:07

So that is a look at our project right now.

00:11

From that point, I am going to come up and create another proposal.

00:14

This time, I'm going to call it assessment.

00:20

This proposal in my workflow is going to be about analyzing the area, analyzing the existing conditions,

00:26

so that we know if the bridge is constructable or if we need to make changes to where we want to lay out the roadway,

00:33

and where the bridge is located, and so forth.

00:36

To do this, I'm going to go to the Manage tab of the ribbon, the display panel pull down, terrain themes.

00:42

I'm going to create a terrain theme here that analyzes the elevations or displays the elevations of this project in a banding.

00:50

Now, it gives you a maximum and minimum value and the colors.

00:54

Notice that the preview down below goes from the low color to the high color.

00:58

You can change those colors by clicking these buttons here, or you can pick from a long list of predefined lists here.

01:06

I'm going to go with just these settings at first to kind of see what the project looks like.

01:10

And as I look at this, I know that we're coming into the yellow area here, kind of below 4,000 feet.

01:16

And we're not coming above 4,000 feet over here.

01:19

So I'm going to edit that elevation, so that 4,000 feet is my high point.

01:26

That way, we can see a little bit better detail as to where the elevation is band at.

01:31

That way, the bridge designer and the road designer can discuss where the road can come in and the bridge is located,

01:36

and not cause problems with the construction later on.

01:40

I am also going to come up and create a new theme for slope, that way, we know where the slopes of this project are.

01:48

You can see that the lower slopes are in the bottom, and then we get to higher slopes up here.

01:54

Again, you can edit that to make them a more custom to fit your needs.

01:58

But that way, we know about where the roadway will have trouble as it's being constructed into the hill.

02:04

You can just turn off the checkmark boxes to turn those off.

02:08

These analysis points will always be with this surface.

02:11

You just have to come into the terrain themes to turn them on.

02:15

I am also going to come in and place a small area, a coverage area.

02:23

I've been told that there's some area down in the Valley here that we can't put any kind of construction area,

02:30

whether it be for poor soils, or poor engineering area, or for whatever reason.

02:38

I'm going to put this coverage in down here, just double click to end that creation.

02:43

Now, I'll come into the environment panel pulldown suitability maps.

02:49

The suitability maps take a look at your project and give you information on where it is suitable for certain constructions to be.

02:59

I am going to highlight the name here and call this Park Bridge.

03:06

And then, I'm going to click "Add Layer" to add a layer in here.

03:12

And this layer, the first layer I'm going to create here is called water. I just want to identify where the water is.

03:17

You can see the main river here, but there's many streams coming down off the hill.

03:21

I just want to highlight that. I'll use the Add feature set.

03:24

And then in the top section, I'll scroll down a bit so I can see the water areas and the streams.

03:32

I'm going to close that box off and click "OK".

03:35

And that adds that in.

03:36

Now, my dialog box doesn't open all the way up until I move it off the screen.

03:40

So, you can see that is listed here.

03:42

I'm going to add another layer for road and rail.

03:48

I know I have deleted a lot of the roads and rails that were already in here,

03:52

but this will highlight any others that are there, and may cause a problem in our design.

03:58

And finally, one more time over here, I'm going to add a layer for no construction.

04:08

And in there, I'll click on the "Filter".

04:10

And towards the top, I'll click "Coverage area".

04:13

I'm going to close out that feature selection and say "OK".

04:17

And now, that adds that in.

04:18

Basically, that's looking for the coverage area that I created down here at the bottom.

04:22

Now, the no construction area is important.

04:24

So, I'm going to use the sliders in this dialogue to push that up to 100%.

04:30

That's the most intense issues that we might face.

04:34

The water areas we know about, I just want to highlight them.

04:37

So, I'm going to slide that down a bit.

04:38

I'll leave the road kind of in the middle.

04:40

Now, I'll click "Apply" and that applies it to the surface.

04:49

And there, you can see those areas are highlighted.

04:52

I'm actually going to move the water up just a little bit.

04:55

And then I'll click "Apply" again.

04:58

You can see where those streams are located.

05:01

That way, we can either avoid certain areas or know that we need to do something special about the construction in other areas as we do this.

05:09

And there is clearly an area that we need to stay away from in the middle here.

05:13

So, with that, I am going to deactivate the map that's at the top of the suitability maps dialog.

05:19

And I'll close that dialog off.