You’ll need AutoCAD® Civil 3D® to perform this workflow.
In C3D, make a polyline that has width and is the length of your parking stripe. (For best results, create your C3D file using metric values.)
Extrude the polyline by 0.01 or some small amount so that it becomes a 3D object. FBX Export that object.
In InfraWorks, add to one of your style libraries (for example, City Furniture) the FBX file that represents the stripe.
Add that new model as a decoration within the Road Style Group that is the parking lane. Tim advises that you make sure to select the correct bucket and expand the length of the dialog so that you can adjust the scale and the rotation about the Z axis.
I hope you enjoy Tim’s how-to video as much as my team and I do:
Thanks to InfraWorks Discussion Group participant wesley for asking how to make perpendicular parking lanes.