Convert planning roads to component roads in preparation for a traffic simulation in InfraWorks

00:03

To create a traffic simulation model in InfraWorks using Mobility Simulation,

00:08

all roads must be component roads, which support advanced modeling and analysis features.

00:14

Any planning roads, lightweight roads that use spline geometry, must be converted before a traffic simulation can be calculated.

00:23

Begin with any InfraWorks traffic model open.

00:27

Here, the project drawing was created as an Autodesk model-building example.

00:32

In the model, pick a road, such as Caswell Road.

00:36

The properties display in the panel on the right.

00:40

Select several roads, and you can see that all the roads are planning roads, also called sketch roads.

00:47

You have two options for converting them to component roads, or design roads.

00:52

You can manually convert them beforehand in your InfraWorks model—select a road, right-click and select Convert to Conversion Road—

01:01

or you can simply start the Mobility Simulation mode and let the software do it for you.

01:07

Choosing the second option prompts a notification

01:11

asking if you are sure you want to convert the roads from planning to component roads.

01:16

If you select Yes, InfraWorks converts them for you through a batch process, which is helpful if you are covering a large area.

01:25

Be aware, though, that if you choose this option, you might have to go back and do some manual adjustments.

01:32

Roundabouts are another important consideration and must be converted before creating a traffic simulation model in InfraWorks.

01:41

For this example, while the roundabout might convert to component roads well through the Mobility Simulation process,

01:49

you should convert this to a roundabout entity manually inside InfraWorks, for better accuracy.

01:55

You do this by deleting and recreating the roundabout.

01:59

One at a time, pick the roundabout and the eight road segments that feed it, pressing Delete on your keyboard after each selection.

02:07

To recreate the roundabout, first, manually convert the incoming roads to component roads.

02:14

Select one of the three main feeder roads, then right-click it and select Convert to Component Road.

02:21

A loading dialog appears.

02:24

Repeat this process for the two other main feeder roads.

02:28

One at a time, select and then click and drag the end of each component road,

02:33

so that they all meet in the middle of the roundabout, creating an intersection.

02:39

To convert this to a roundabout, select the intersection,

02:43

and in the Intersection properties panel, under Type, change the Junction Type to Roundabout.

02:49

To manually adjust the circumference of the roundabout, select the roundabout,

02:55

and then click and drag the arrow to adjust the inscribed circle diameter.

03:00

You now have a roundabout entity in your model.

03:04

As you can see, while recreating the roundabout, Caswell Road was converted to a component road.

03:11

Now, use the same steps to manually convert some of the main connecting roads as well.

03:17

For this example, select Salthouse Road, then right-click and select Convert to Component Road.

03:24

A loading dialog appears, then you see the intersection with Caswell Road change in the model.

03:31

Repeat this process for both Reynoldston Close and Sketty Close roads.

03:37

With the roundabout and roads now set as component roads in your InfraWorks traffic simulation model,

03:43

you are now ready to create your traffic study area.