Every operator of a vehicle approaching an intersection at which
an official traffic control device is erected in accordance with this
chapter shall obey the direction of such official traffic control
device as required by the Wisconsin Statutes incorporated by reference
in §
494-1 of this chapter. Operators of vehicles approaching
a stop sign shall stop before entering a highway as required by § 346.46,
Wis. Stats. Operators approaching intersections at which a yield sign
has been installed shall yield the right-of-way to other vehicles
as required by § 346.18(6), Wis. Stats.