Polycurves not joining to create floor by outline

[Arno_De_Lange]

i am trying to create floors based on a line.
Unfortunatly i am having problems getting all the lines connected to create a floor…

create_site_road_basic.dyn (61.9 KB)

createroads_floors.rvt

simple project

hope some one can figure it out… lines … curves plycurves nurbcurves it is really driving me crazy

[MelleH]

Can you share an image of the model lines?

[jacob.small]

Instead of grouping the curves by type and running the approximation, why not group the curves, build a polycurve, and then approximate it?