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/wiki/User:Vanisaac" title="User:Vanisaac">Vanisaac</a> and <a href="//commons.wikimedia.org/wiki/User:Hex" class="mw-redirect" title="User:Hex">Hex</a>
2013-08-08
Own work based on: <a href="//commons.wikimedia.org/wiki/File:BSicon_vHST-STR.svg" title="File:BSicon vHST-STR.svg">BSicon vHST-STR.svg</a> and <a href="//commons.wikimedia.org/wiki/File:BSicon_HSTACC.svg" title="File:BSicon HSTACC.svg">BSicon HSTACC.svg</a>