Designing interchange loop ramp

[Anonymous]

Hello,

I need to design a loop ramp for a partial cloverleaf interchange.

The loop is designed from tangent-spiral in-curve-spiral out -tangent

as seen in example attached file.

I enclose an example I created with other software. I am trying to do that with civil.

 

[wfberry]

What you have submitted is just a polyline.

Bill

[Anonymous]

I know that, it is just an example.

I have attached now a civil file, I would like to add the spiral as I mentioned above.

[wfberry]

No file attached.

Bill

[Anonymous]

sorry...

[Mohamed.E.Salem]

To add a free spiral between curve and tangent you need first disconnect between them (for example add a PI and then delete sub-entity ) then make sure that both of curve and tangent have tangency constraints fixed finally add a free spiral between these entities