How to get the double lines road from road mid line

Hey guys, i want to get the road double lines from the road mid line like this one shows

i am struggling how to delete the red line

here is my grasshopper file

mid line.gh (6.6 KB)

Use Clipper plugin
http://www.food4rhino.com/app/clipper-grasshopper

1 Like

this plugin’s working great!

thanks a lot!