git-svn-id: https://simutrans.svn.sourceforge.net/svnroot/simutrans/pak128@1318 e96eaf88-093e-0410-925f-862d53288611
Pak128 Half Height Conversion
More work on road bridges

git-svn-id: https://simutrans.svn.sourceforge.net/svnroot/simutrans/pak128@1328 e96eaf88-093e-0410-925f-862d53288611