double subway lines (on surface) with crossing subway line (in tunnel)
<a href="//commons.wikimedia.org/wiki/User:MB-one" title="User:MB-one">MB-one</a>
2015-03-23
This <a href="https://en.wikipedia.org/wiki/vector_image" class="extiw" title="w:vector image">vector image</a> includes elements that have been taken or adapted from this file: