Non-conventional tie forms Railroad tie
1 non-conventional tie forms 1.1 y-shaped ties 1.2 twin ties 1.3 wide ties 1.4 bi-block ties 1.5 frame ties 1.6 ladder track non-conventional tie forms y-shaped ties y tie track next conventional track an unusual form of tie y-shaped tie, first developed in 1983. compared conventional ties volume of ballast required reduced due load-spreading characteristics of y-tie. noise levels high resistance track movement good. curves three-point contact of y steel tie means exact geometric fit cannot observed fixed attachment point. the cross section of ties i-beam. as of 2006 less 1,000 km of y-tie track had been built, of approximately 90-percent in germany. twin ties the zsx twin tie manufactured leonhard moll betonwerke gmbh & co kg , pair of 2 pre-stressed concrete ties longitudinally connected 4 steel rods. design said suitable track sharp curves, track subject temperature stress such operated trains eddy brakes, bridges , transition track between traditional track , slab track or ...