Breda-built <a href="https://en.wikipedia.org/wiki/Dual-mode_bus" class="extiw" title="en:Dual-mode bus">dual-mode bus</a> 5191, of Seattle's Metro Transit, northbound at University Street station in the Downtown Seattle Transit Tunnel, in 1994.  No. 5191 was nearing the end of an inbound trip on route 227. (Metro was not yet part of King County government at that time.)
<a href="//commons.wikimedia.org/wiki/User:Steve_Morgan" title="User:Steve Morgan">Steve Morgan</a> (of Portland, Oregon)
<span class="int-own-work" lang="en">Own work</span>