What type of structural system transmits loads in one direction at a time and primarily uses wood?

A one-way structural system is designed to support loads primarily in one direction, effectively transmitting those loads to the supporting elements like beams or walls. This system is characterized by its simplicity and efficiency in handling distributed loads, making it particularly suited for structures where spans are not excessively large. In residential and light commercial construction, one-way systems often utilize wood as the primary material due to its favorable strength-to-weight ratio, ease of handling, and cost-effectiveness.

In contrast, two-way structural systems are designed to distribute loads in two directions, typically using materials like concrete or steel for larger spans. The mezzanine system is a specific floor-level construction but doesn't directly relate to load transmission direction. Bridge structures, while certainly engineering feats, involve specialized design considerations that encompass various loading scenarios, not limited to the one-directional load paths typical of a one-way system.