SMC 11.40.180 Standard of care for drivers of motor vehicles - Seattle Municipal Code

The driver of a vehicle approaching a pedestrian who is carrying a cane predominantly white in color (with or without a red tip) or using a guide dog shall take all necessary precautions to avoid injury to such pedestrian. No driver of any vehicle shall drive into or upon any crosswalk while there is on such crosswalk any pedestrian who is crossing or attempting to cross the roadway and who is indicating his/her intention to cross or of continuing on by carrying, holding up, or waving a white cane or by using a guide dog. The failure of any such pedestrian so to signal shall not deprive him of the right-of-way accorded him. (RCW 70.84.040)
(Ord. 108200 Section 2(11.40.180), 1979.)