The next stage in realistic snap track Superelevation is the term used to describe track in which one rail is higher than the other much like a banked curve on a freeway offramp or a high speed corner in NASCAR these banked curves are specially designed to reduce wheel wear & increase both comfort & safety in all manner of trains fast or slow passenger & freight These superelevated curves are a standard installation in modern railroads & before now they were complicated & finicky to replicate at model railroad scale level but no longer Kato UNITRACK makes it simple with modular easement & superelevated curves available with modern precast concrete ties which not only modernize the look of your rails but help differentiate the pieces at a glance from nonbanked track pieces Please note that all of these Concrete Tie Double Track pieces are 100 compatible with our regular double & single track Unitrack pieces & bridges & can be added into your existing Unitrack layouts br V12 Double Track Viaduct Set Special Features Modern Concrete Ties Superelevated Curves for realistic banked motion Double Track Pier Sets Bridge Black