@CaseyKane50 216174 wrote:
Ken,
Not sure where your sign was located, but I noticed a number of those signs along the new 15th Street protected bike lanes today. They were at both controlled and uncontrolled crosswalks. I am guessing they are a reminder for people biking to watch out for and yield to people walking in the crosswalks.

They are all along the new PBL’s on New Jersey Aveue SE, between Eye Street and M Street. They may well be simple reminders, with no added legal meaning (my case C) whether prompted by someone’s complaint as MStone suggests, or not.
It still seems odd to me to add such a reminder, when there is already a stop sign, and when ALL vehicles must watch out for and yield to peds in crosswalks (in fact to stop for them, IIUC DC law correctly) but I can understand the reason, and I don’t object. Just found it notable.