構内配線図　単純交換（安全測線付）
<ul><li>Original image: <a href="https://ja.wikipedia.org/wiki/%E5%88%A9%E7%94%A8%E8%80%85:Tamikiku" class="extiw" title="ja:利用者:Tamikiku">ja:利用者:Tamikiku</a></li>
<li>vectorization: <span class="int-own-work" lang="en">Own work</span></li></ul>
<a href="//commons.wikimedia.org/wiki/File:Koukan1.png" title="File:Koukan1.png">File:Koukan1.png</a>