Updated 08/08/2012 : New image added this time with large Pylons and 4 cables
Just a quick note, I’ll post an example rule file later… basically you can model utility networks like electricity cables and pylons by using a graph network and instead of modelling a street with trees and lamps you model cables and pylons.
In this example I’ve made sure the graph/street segment ‘y’ vertices are at a height of 12m (or whatever you like). Then I’ve placed a pylon every 20 metres, which are offset down by 10m (so they sit on the ground and the cable rests on their arms). Then at the same time drawn a simple black box down the centre line of the graph. It’s crude I know but the results look quite good I think.
You could use this technique for anything, for example pipes/ducting underground. Has anyone tried a road tunnel I wonder?