<b>Interchange Sequence</b> (with route shield)
<a href="https://en.wikipedia.org/wiki/California_Department_of_Transportation" class="extiw" title="en:California Department of Transportation">California Department of Transportation (Caltrans)</a>
Redrawn using specifications on <a rel="nofollow" class="external text" href="http://www.dot.ca.gov/hq/traffops/engineering/control-devices/specs/G23-3.pdf">Caltrans sign G23-3</a> (from 1971)