[pgrouting-users] How to best handle Z-Level?

[Stephen Woodbridge]

Hi all,

Another question on handling Z-Levels at intersections.
What is the best practice for this?

It seems that my options might be:

1) create multiple node based on (location+zlevel) and connect edges as 
appropriate.

2) treat it as a single node and add a bunch of turn restrictions to 
things separated by zlevel.

3) other options???

Thanks for any input,
  -Steve