See <a href="https://en.wikipedia.org/wiki/Route_diagram_template" class="extiw" title="w:Route diagram template">Route diagram template</a>
<a href="//commons.wikimedia.org/w/index.php?title=User:Esirgen&amp;action=edit&amp;redlink=1" class="new" title="User:Esirgen (page does not exist)">Esirgen</a>
2009-05-25
Own work by uploader, based on BSicon_utSTRrf.svg