As a long time fan of brick tracks, the one thing I wished I could have was something that looked more realistic with brown coloured ties and silver rail.  So I've modelled this track and printed out a bit, and it works well so far.  It connects with other brands of similar track, as well as functioning on it's own.  The print profile contains a few plates for printing different quantities, and if you don't want to use multi colour, just set both to the same filament when printing.