The intersections described in Schedule II (included herein as §
430-21 and made a part of this chapter) are hereby established as stop intersections, and official stop signs shall be erected (or existing stop signs ratified) in such a position as to face traffic approaching the second-named street on the first-named or stop street in the direction indicated for that intersection. Every driver or operator of a vehicle approaching the first-named or stop street, in the direction indicated, shall stop the vehicle as required by Section 3323(b) of the Vehicle Code, and shall not proceed into or across
the second-named or through street until he has followed all applicable
requirements of that section of the Vehicle Code.