ühesuunaline

Ühesuunaline is the Estonian adjective meaning one-directional or unidirectional. It describes objects, systems, or arrangements that are designed to operate, move, or be used in only a single direction. The word is formed from the elements üks (one) and suund (direction) with the suffix -aline, which is used to create adjectives describing a characteristic.

In traffic terminology, ühesuunaline tänav denotes a street where vehicles may travel only in one specified direction. Such streets are typically signposted and governed by traffic regulations to improve safety and traffic flow. The concept is common in urban planning and is implemented to reduce conflicts at intersections and to manage congestion.

Beyond transportation, ühesuunaline can describe data or signal paths, as well as communication or flow processes that proceed in one direction without backward transmission. In information technology, architecture, and logistics, the term helps specify constraints on directionality in systems, networks, or procedures.

The opposite of ühesuunaline is kaksuunaline or kahepoolne, meaning bidirectional or two-way. In translation, the direct equivalents are unidirectional or one-way, with ühesuunaline used primarily in Estonian sources and context-specific terminology. The term is widely understood in everyday language as well as in formal or technical contexts.