tikz-trackschematic/test/crossing.tikz

%!TEX TS-program = pdflatexmk
%!TEX root = test.tex

% Copyright (c) 2018 - 2020, Martin Scheidt (ISC license)
% Permission to use, copy, modify, and/or distribute this file for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

\node[blue] at (4,0) {\large test crossings};

\foreach \i in {1,2}{% base coordinate
  \coordinate (A\i) at ($(0,0) + 2*(0,-\i)$);% base coordinate
  \coordinate (B\i) at ($(8,0) + 2*(0,-\i)$);% base coordinate
}

\foreach \i in {1}{% draw main tracks on base coordinate
  \maintrack (A\i) --   (B\i);
}

\foreach \i in {2}{% draw secondary tracks on base coordinate
  \secondarytrack (A\i) --   (B\i);
}

\foreach \i in {1,2}{% coordinates for testing symbols
  \coordinate (X\i-1) at ($(1,0) + 2*(0,-\i)$);
  \coordinate (X\i-2) at ($(3,0) + 2*(0,-\i)$);
  \coordinate (X\i-3) at ($(5,0) + 2*(0,-\i)$);
  \coordinate (X\i-4) at ($(7,0) + 2*(0,-\i)$);
}

\foreach \i in {1}{% coordinates for testing symbols
  \maintrack (X\i-1) -- ++( 0.75,-0.75);
  \maintrack (X\i-1) -- ++(-0.75, 0.75);
  \maintrack (X\i-2) -- ++( 0.75, 0.75);
  \maintrack (X\i-2) -- ++(-0.75,-0.75);
  \maintrack (X\i-3) -- ++( 0.75,-0.75);
  \maintrack (X\i-3) -- ++(-0.75, 0.75);
  \maintrack (X\i-4) -- ++( 0.75, 0.75);
  \maintrack (X\i-4) -- ++(-0.75,-0.75);
}
\foreach \i in {2}{% coordinates for testing symbols
  \secondarytrack (X\i-1) -- ++( 0.75,-0.75);
  \secondarytrack (X\i-1) -- ++(-0.75, 0.75);
  \secondarytrack (X\i-2) -- ++( 0.75, 0.75);
  \secondarytrack (X\i-2) -- ++(-0.75,-0.75);
  \secondarytrack (X\i-3) -- ++( 0.75,-0.75);
  \secondarytrack (X\i-3) -- ++(-0.75, 0.75);
  \secondarytrack (X\i-4) -- ++( 0.75, 0.75);
  \secondarytrack (X\i-4) -- ++(-0.75,-0.75);
}

\crossing[branch=right]               at (X1-1) label (X1-1);
\crossing[branch=left ]               at (X1-2) label (X1-2);
\crossing[branch=right,fouling point] at (X1-3) label (X1-3);
\crossing[branch=left ,fouling point] at (X1-4) label (X1-4);

\crossing[branch=right]               at (X2-1) label (X2-1);
\crossing[branch=left ]               at (X2-2) label (X2-2);
\crossing[branch=right,fouling point] at (X2-3) label (X2-3);
\crossing[branch=left ,fouling point] at (X2-4) label (X2-4);