kiertotie

Kiertotie is the Finnish term for a detour route used in road traffic to bypass a closed or obstructed section of road. The word combines kierto, detour, with tie, road, reflecting its function as an alternative path. Detour routes are temporary and activated during events such as road works, accidents, or natural hazards.

Detour routes are signposted with temporary traffic signs and may be communicated through real-time traffic information, online maps, and local notices. They often route traffic via secondary or parallel streets and may involve changes in speed limits or access restrictions, as needed to maintain safety and flow. The aim is to minimize disruption while preserving access for residents, businesses, and emergency services.

Authorities at national and local levels, including road maintenance agencies and municipalities, plan and manage kiertotiet. They determine the detour path, install signs, and coordinate with public communications and service providers. Detours are designed to be clear and logical, with consideration given to overall traffic efficiency and safety, even if travel times increase.

Motorists are advised to follow kiertotie signs and updated guidance, check maps and traffic feeds, and allow extra travel time. In Finland, kiertotie procedures follow national traffic sign regulations and are integrated into broader traffic management and incident response frameworks.