when my boys are playing with their lego city train sets they wanted to have other railroad crossing tiles to drive over 2 parallel train tracks. that is why i designed a set of tiles to use with the LEGO City track system to use as railroad crossing tiles.
i have designed them as 3,2mm tiles those are the same as the actual lego tile thickness.
i also designed a double thickness 6,4mm tile, that way you do not need extra "filler plates" on top of the sleepers.
for a single lane crossing you need 1 4x8 tile 6,4mm or 3,2mm and add a couple of "filler plates" and 2 ramps( can be found as an STL file here https://www.thingiverse.com/thing:2683186 by Clockwork58)
for a double lane crossing you will need 2 of the above.
if you want to place the railroad crossing where 2 train tracks run parallel (i.e. when using a switch)there is an open section between the tracks, it is 10 tiles long. for that reason i designed a special Double Track crossing tile to fit in between the tracks. you can also use the tiles 10 long 3,2mm or 6,4mm but hen you have to build up with filler plates.
as a bonus i also edited the Double track crossing tile in such a way that you can clip on a 10x2 plate on one side and then add 1 ramp tile on the side of the crossing. then you have an off ramp in between 2 tracks.
After a couple of designs, Testing and Re-Designs, all designs are now compatible with Original LEGO Tiles/Plates/Bricks and you can even clip them into the open centre studs (as seen in the pictures)
Please let me know what you think of them and how you use them by posting pictures of you LEGO City Railroad crossing tiles in action :)
no scaling needed, the parts fit together with Original LEGO Tiles/Plates/Bricks.