nYOriginDest

nYOriginDest is a project- or library-specific term used to denote a single origin–destination record in transport, logistics, and network analysis contexts. It serves as a compact container for the nominal pair of nodes or locations between which movement or demand is modeled. The name is not part of a formal standard; practitioners adopt it as a conventional identifier within codebases and data pipelines to separate origin–destination data from other graph elements.

Typically, an nYOriginDest item includes at minimum an origin identifier and a destination identifier. Many implementations extend this with optional attributes such as weight or demand, transportation mode, departure or arrival time, and computed cost or distance. Common representations are as a small class or struct, a dictionary or record, or a lightweight row in an OD matrix. Serialization formats include JSON, CSV, or binary forms for efficiency in large-scale workloads.

In use, nYOriginDest items are assembled into collections that feed routing engines, geographic information systems, and simulation tools. They are the fundamental units for constructing origin–destination matrices, estimating travel demand, and evaluating network performance. When combined with graph data structures, distance metrics, and time-dependent costs, they enable tasks such as shortest-path routing, traffic simulation, and demand forecasting.

See also: origin–destination, OD matrix, routing, transport planning, graph data structures. Note that the exact fields and semantics of nYOriginDest can vary by project; developers typically document a schema within their codebase or data schema.

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