Sketch a traffic study area in InfraWorks

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In InfraWorks, you can sketch a traffic study area to analyze traffic flow through intersections,

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which you can later use to display color-coded traffic analysis results and generate traffic simulation animations.

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Begin with the InfraWorks Mobility Simulation model open and navigate to the area you want to study.

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For this example, the roundabout and major roads have already been converted to component roads, also called design roads.

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If your roads have not been converted, select each planning road, right-click, and select Convert to Component Road.

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Alternatively, or if you miss any, the program will attempt to convert them for you all at once after you create the study area.

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From the ribbon, on the Analyze tab, expand the Transportation drop-down and click Traffic Simulation.

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The traffic simulation mode begins, and component roads are highlighted in the InfraWorks model.

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Now, click points in your model to draw a polygon for your traffic study area.

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As you draw the study area, demand zones are automatically added where the traffic study area crosses component roads.

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Demand zones are origins or destinations for trips, and they appear as light blue boxes within the drawing model.

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Be aware that light blue boxes only appear over component roads, and not over planning roads.

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When you are done, double-click to complete the selected traffic flow area.

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A panel for the Traffic Study Area displays.

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A Traffic Simulation confirmation dialog box also appears,

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asking if you want to convert the planning roads inside the traffic study area to component roads.

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For this example, click Yes.

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A loading dialog appears as the roads are converted in your drawing, reporting progress.

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Once that is done, you can zoom in to check that all roads were converted properly

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and that demand zones appear at each crossing location.

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In this case, everything is correct.

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As you have seen, sketching a traffic study area in InfraWorks to use for Mobility Simulation is a straightforward process.

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Now, you are ready to create a traffic simulation animation in your InfraWorks model.