underground flying junction, straight and from the upper right (4th quadrant)
This  <a href="https://en.wikipedia.org/wiki/Vector_graphics" class="extiw" title="w:Vector graphics">vector image</a> was created with a <a href="https://en.wikipedia.org/wiki/Text_editor" class="extiw" title="w:Text editor">text editor</a> by <a href="//commons.wikimedia.org/wiki/User:Axpde" title="User:Axpde">axpde</a>.
2009-02-02
<span class="int-own-work" lang="en">Own work</span>