Establishing shared streets.

HB 1772 establishes "shared streets" in Washington state, where pedestrians, cyclists, and vehicles share the same roadway space. Local governments can designate nonarterial streets as shared streets using official traffic signs, requiring vehicles to yield to pedestrians and cyclists while cyclists must yield to pedestrians. The bill also allows local authorities to set a 10 mph speed limit specifically on designated shared streets without needing an engineering study. This directly affects local governments (which can designate these streets), pedestrians, cyclists, micromobility device users (like e-scooters), and drivers navigating these shared spaces.