(A) Those streets and parts of streets, as may be described in a future traffic schedule, are hereby declared to be “through streets” for the purpose of this section.
(B) When stop signs are placed, erected or installed upon highways intersecting a through street at the entrance thereto, or at the entrance to any intersection, every driver of a vehicle or street car, shall stop in obedience to the signs before entering the intersection and shall not proceed into or across the through street until he or she has first determined that no conflict with traffic will be involved.
(1940 Code, Ch. G, Art. VI, § 1)