Details of how traffic is organized in Pgh.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/28238346@N00">IK's World Trip</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ikkoskinen/4938955929/">IMG_2074</a>