färdvägval

Färdvägval is a term used in civil engineering and transportation planning to describe the selection process by which an individual or traffic participant chooses a specific route between an origin and a destination. The concept encompasses pre-trip decisions made before starting travel as well as en-route adjustments in response to changing conditions. In Swedish contexts, färdvägval is often discussed alongside other routing decisions such as mode choice and trip frequency.

Route choice depends on a range of factors: travel time and distance, travel cost (fuel, tolls, vehicle wear), service quality (reliability, frequency, and comfort), safety and road conditions, weather, and individual preferences such as scenery or driver familiarity. Information availability, including navigation devices and real-time traffic reports, strongly influences färdvägval, as do policy measures like congestion pricing and road pricing.

In transportation science, färdvägval is studied through models of route choice and traffic assignment. Classical approaches use Wardrop’s equilibrium ideas and deterministic user equilibrium, where all travelers opt for routes that minimize their perceived travel time given others’ choices. More recent approaches employ probabilistic and discrete-choice models to capture heterogeneity in preferences and uncertainty.

Practical applications include the design of traffic management strategies, the evaluation of new infrastructure, and the development of navigation services. Understanding färdvägval helps planners predict congestion patterns, assess reliability, and design information systems that support efficient and safe travel.