• InfraWorks

Divide and direct demand in Mobility Simulation

Direct and divide demand for a queuing system simulation.


00:04

One way to use InfraWorks Mobility Simulation is to create an animated queuing system.

00:10

Once you have created a network and defined people types,

00:14

you can set up demand divisions and direct the demand of pedestrians moving through the simulation.

00:20

Divisions allow you to create groups of certain types of people, and then assign ratios for that group to the simulation.

00:27

In the toolbar, select Demand > Demand Divisions.

00:32

In this example, to create a group that is made up of 40% adults and 60% children,

00:38

on the People tab, click Add (+) to create a new division.

00:43

Then, click in the Adult column and enter a value of 40 percent.

00:48

The Child column automatically updates to 60, as each division must add up to 100%.

00:54

Click Add (+) again to create a second division, and in the Adult column, enter 90.

00:60

The Child column updates to 10. Click Apply.

01:05

Once divisions are created, you can assign them to specific people areas in the network.

01:11

Here, Division 1 will be assigned to the topmost area, and Division 2 to the area on the left.

01:18

Click Apply, and then OK.

01:21

To define the number of people in the simulation according to these divisions, from the toolbar,

01:26

select Demand > Demands to open the Demand Editor.

01:32

If needed, click Delete (X) to clear previously entered parameters.

01:36

To set the demand for the first division, click Add (+) to open the New Matrix dialog,

01:41

where you set the Matrix Name, Mode, Profile, Division, Origin Sector, and Destination Sector.

01:49

Expand Division and select D1.

01:53

Leave the Origin Sector and Destination Sector set to All Areas, and click OK.

01:58

In the Demand Editor, the new matrix displays,

02:02

where you can assign the number of people that come and go to and from specific areas.

02:07

Each cell represents movement in a specific direction between 2 cells.

02:12

Move the dialog to the side, if needed, for a better view of the model.

02:18

Then, click any cell of the matrix.

02:21

In the project window, an arrow indicates the direction of demand defined by that cell.

02:27

In this case, to direct a demand of 100 people from area 1 to area 3, in row 1, column 3, enter 100.

02:38

Based on the group ratios set, this is 40 adults and 60 children.

02:42

To set the demand for the second division, click Add (+) again to create another matrix,

02:48

and in the New Matrix dialog, select Division D2.

02:52

Click OK.

02:54

In row 2, column 3 of the second matrix, enter 85.

02:60

When all directed demand is set, click OK.

03:04

Now, you can run the simulation.

03:07

In the Tabs panel, select Simulation, where a Base simulation is already applied.

03:13

When you click Play, the message “No trips defined” appears,

03:18

because this simulation is using old data.

03:21

To correct this, you need to add a new simulation based on the data you just created.

03:27

Click Add (+), and in the New Simulation popup, enter a name, such as“1st Simulation”.

03:33

Click OK.

03:35

On the Simulation tab, select 1st Simulation, and then select Activate Simulation.

03:42

With 1st Simulation now highlighted, click Play.

03:46

After a few seconds, people appear in the simulation and move along the walkways.

03:52

Zoom and pan the model for a 3D view, and you can see that people are moving quickly through the queue.

03:60

Once a model is set up and a simulation is created,

04:03

the next step is to adjust the parameters to create more realistic movement for that situation.

Video transcript

00:04

One way to use InfraWorks Mobility Simulation is to create an animated queuing system.

00:10

Once you have created a network and defined people types,

00:14

you can set up demand divisions and direct the demand of pedestrians moving through the simulation.

00:20

Divisions allow you to create groups of certain types of people, and then assign ratios for that group to the simulation.

00:27

In the toolbar, select Demand > Demand Divisions.

00:32

In this example, to create a group that is made up of 40% adults and 60% children,

00:38

on the People tab, click Add (+) to create a new division.

00:43

Then, click in the Adult column and enter a value of 40 percent.

00:48

The Child column automatically updates to 60, as each division must add up to 100%.

00:54

Click Add (+) again to create a second division, and in the Adult column, enter 90.

00:60

The Child column updates to 10. Click Apply.

01:05

Once divisions are created, you can assign them to specific people areas in the network.

01:11

Here, Division 1 will be assigned to the topmost area, and Division 2 to the area on the left.

01:18

Click Apply, and then OK.

01:21

To define the number of people in the simulation according to these divisions, from the toolbar,

01:26

select Demand > Demands to open the Demand Editor.

01:32

If needed, click Delete (X) to clear previously entered parameters.

01:36

To set the demand for the first division, click Add (+) to open the New Matrix dialog,

01:41

where you set the Matrix Name, Mode, Profile, Division, Origin Sector, and Destination Sector.

01:49

Expand Division and select D1.

01:53

Leave the Origin Sector and Destination Sector set to All Areas, and click OK.

01:58

In the Demand Editor, the new matrix displays,

02:02

where you can assign the number of people that come and go to and from specific areas.

02:07

Each cell represents movement in a specific direction between 2 cells.

02:12

Move the dialog to the side, if needed, for a better view of the model.

02:18

Then, click any cell of the matrix.

02:21

In the project window, an arrow indicates the direction of demand defined by that cell.

02:27

In this case, to direct a demand of 100 people from area 1 to area 3, in row 1, column 3, enter 100.

02:38

Based on the group ratios set, this is 40 adults and 60 children.

02:42

To set the demand for the second division, click Add (+) again to create another matrix,

02:48

and in the New Matrix dialog, select Division D2.

02:52

Click OK.

02:54

In row 2, column 3 of the second matrix, enter 85.

02:60

When all directed demand is set, click OK.

03:04

Now, you can run the simulation.

03:07

In the Tabs panel, select Simulation, where a Base simulation is already applied.

03:13

When you click Play, the message “No trips defined” appears,

03:18

because this simulation is using old data.

03:21

To correct this, you need to add a new simulation based on the data you just created.

03:27

Click Add (+), and in the New Simulation popup, enter a name, such as“1st Simulation”.

03:33

Click OK.

03:35

On the Simulation tab, select 1st Simulation, and then select Activate Simulation.

03:42

With 1st Simulation now highlighted, click Play.

03:46

After a few seconds, people appear in the simulation and move along the walkways.

03:52

Zoom and pan the model for a 3D view, and you can see that people are moving quickly through the queue.

03:60

Once a model is set up and a simulation is created,

04:03

the next step is to adjust the parameters to create more realistic movement for that situation.

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