The path integral is a foundational formalism of quantum mechanics, yet mainstream physics cannot answer: where does the distribution of paths come from? Who determines the weights? How does the system maintain global coherence? Based on the PFUSRC framework, this paper establishes the theory of Cosmic Traffic Rules. Core claims: 1. A path is not a curve in space. A path is the spatiotemporal projection of Ψ-Ξ anchoring relationships (PFUSRC-009). It is the historical trace of anchoring, not a spatial curve.2. The orbital network is determined by bicone topological ontology (PFUSRC-00). All path distributions are predetermined by topological rigidity, not “explored” by particles.3. Coupling Interface 0 is where anchoring occurs. Its projection in the mother universe ontology is the bicone waist ring; its projection in the 4D universe projection layer is the minimal spatial gap.4. The vertex is absolutely impenetrable (PFUSRC-38). Any particle reaching the vertex is reflected — this is a topological prohibition, not a mechanical collision.5. Path conflict triggers exclusion (PFUSRC-004). When ΔA exceeds the tolerance limit, the system triggers deterministic rejection. The excluded structures become dark matter/dark energy.6. Conduction failure can lead to mother universe topological rupture (corollary). When the scale exceeds the synchronization limit of information conduction, breathing desynchronization may trigger structural disintegration. In this paper, π₁ = 12/11 is a presupposed axiom of the PFUSRC system; the complete derivation is found in PFUSRC-001. The containment relationship with general relativity is a physical mapping, not a mathematical equivalence proof.