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Direct and divide demand for a queuing system simulation.
Type:
Tutorial
Length:
4 min.
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.
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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