Tweeweg

Tweeweg is a Dutch term meaning 'two-way' and is used to describe roads or traffic that permit movement in both directions. In traffic planning and road signage, tweeweg indicates that vehicles may travel in two directions on the same road rather than in a single direction as in eenrichtingsverkeer (one-way traffic). The term also appears in compound forms such as tweewegverkeer, tweewegweg, or in street names such as Tweewegstraat.

In design terms, a two-way road may have separate lanes for each direction or a single carriageway with a central marking. The centerline serves to separate opposing flows, and its form (dashed or solid) communicates rules about passing and turning. On urban two-way streets, features such as on-street parking, curbside bike lanes, and intersections influenced by pedestrian activity can affect capacity and safety. Signage and speed limits are applied to manage traffic and protect vulnerable users.

Two-way streets contrast with one-way streets, which restrict traffic to a single direction and may require specific turning restrictions. Two-way layouts can preserve traditional street grids and provide direct routes, but they also create potential conflicts between faster through traffic, slower vehicles, pedestrians, and cyclists.

Related topics include one-way streets, road markings, and traffic signs.