# Multiple parallel edges with with a knee point in tikz

Is there an easy way to draw multiple parallel edges from one node to another with an knee point (two 90 degree turns) and equally distributed distance between the edges (not really perfect in the demo graphic)?

You can use a double double line with another double line as postaction.

\documentclass[tikz,border=3mm]{standalone}
\begin{document}
\begin{tikzpicture}[nodes={draw,thick,fill=yellow!80!black,minimum size=1cm,
font=\sffamily\bfseries},