Adjusting how a projected curve flows on a surface?

Lets say I have a terrain generated using contour lines > to pointcloud >
mesh > (drape). I want to project roads (exported gis-data) onto the landscape
but I want to to projected curves to flow more smooth over the landscape rather than
follow every bump. Is there a flexible way to do this?
I was thinking of dragging individual points but easy to get lost and loose the overall shape, but maybe I am wrong.

Hello - you can try the Loose option in Project - whether that is helpful depends on how dense the curves are to begin with.


Thanks, will try this out