With Beyond CAD users can apply striping textures to imported striping meshes to efficiently represent dashed striping without geometry using special textures with alpha (transparent) sections. For assistance on proper striping modeling and UV mapping you can contact our preferred partner, Civil FX, for more information.
Once you have the stripes properly modeled, UV mapped and imported, find the striping textures under Import/Custom. Testing may be necessary to find the appropriate striping dashed material. Select the material and apply to the stripes to see if the stripes appear as desired.