12d Model

As Matt said:

That doesn't sound right...

The Estimators/QS's need to be clear to the modelling team, what quantities need to be calculated and how the should be derived.

We have been through this recently, and had to use many of the weird and wonderful ways to calculate volumes on a large road ...

Have a look at using the 'Tins->User->Create buildings for TINs' option.

Usually you will have building footprints (from GIS) to use as the base data.

Not sure if it will work on circles (eg. trees) unless the super strings have a small 'interval' applied to them. (Ed has explained how HERE ...

In the XplotPPF Editor, ->Plot sheet layout has left & right extensions.

Set these either as absolute (boxed ticked - measured from 0 on the Xsect) or relative to the end of the section being drawn.

Yes, Using a super string - Pipe, is a quick and easy way to do it.

Depending what else you are doing, creating a strings, or Trimesh (or Triangulation) may be needed.

If you simply Parallel the edgeline or even an alignment, there is also:

Design -> Apply -> Amend VG [Amend Mode - Extend XFall]

Which you can select 2 strings (say surveyed CL & Edgeline) to extend from to your parallelled string.

An Alignment string would be your best option to use.

Then 'Design' 'Apply' 'Interface' should do what you want, no template req'd.