Geographical map depicting <a href="https://en.wikipedia.org/wiki/Melbourne_Metro_Rail_Project" class="extiw" title="w:Melbourne Metro Rail Project">Melbourne Metro Rail Project</a> (Metro Tunnel).
<a href="//commons.wikimedia.org/wiki/User:Sameboat" title="User:Sameboat">Sameboat</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>. Referenced <a href="https://en.wikipedia.org/wiki/OpenStreetMap" class="extiw" title="w:OpenStreetMap">OpenStreetMap</a> and <a rel="nofollow" class="external text" href="http://metrotunnel.vic.gov.au/__data/assets/image/0016/6073/MM-MAP-20160108-Project-Alignment-map.jpg">diagram from the official site of Metro Tunnel</a>, but all graphical elements in this image were done from scratch.