See Wis. Stat. 84.02 (4) (f)
The department shall adopt a manual establishing a uniform system of signs, signals, markings and devices for the purpose of regulating, warning or guiding bicycle traffic on highways, streets and bikeways, as defined in s. 84.60 (1) (a). The system, shall be consistent with and shall conform to the system established under par. (e).
Posted by Attorney Clayton Griessmeyer-Wisconsin Bicycle Accident Lawyer