I made two versions of a powerline tunnel for my pakset, but I am unsure which one is the better. In pak64.scifi the powerline is a cable which brings some problems when crossing other ways. I made a bridge and now a tunnel to avoid those problems.
Version 1: the powerline tunnel is on the bottom of the slope, which looks more natural from the outside. But inside there is a gap between the tunnel portal and the powerline, because the tunnel portal does not cover the whole tile.
http://www.simutrans-forum.de/forum/index.php?page=Attachment&attachmentID=17620&h=6aa22733689b55209c4e09daa615783ddac80bef (http://www.simutrans-forum.de/forum/index.php?page=Attachment&attachmentID=17620&h=6aa22733689b55209c4e09daa615783ddac80bef)
Version 2: the powerline tunnel is on the top of the slope and I defined a special underground powerline in the same height. It looks a lot better inside, but from the outside it may look a bit strange.
http://www.simutrans-forum.de/forum/index.php?page=Attachment&attachmentID=17630&h=7827189774f87573d0fdf3dd26b422a36824c0e0 (http://www.simutrans-forum.de/forum/index.php?page=Attachment&attachmentID=17630&h=7827189774f87573d0fdf3dd26b422a36824c0e0)
Please tell me, what version you would prefer.
definitely the version 2
Simutrans Fan page on Facebook (http://www.facebook.com/Simutrans.BLOG?)