Roadworks and changing conditions often require temporary signs that override permanent ones. You must obey temporary signs even when they contradict fixed signs you are familiar with.
Temporary Signs
Temporary signs in Sweden are typically mounted on portable stands or orange-backed boards. They often appear with flashing amber lights to draw attention. Common temporary signs include reduced speed limits through roadworks, lane closures, and diversion routes.
Traffic controllers (flagmen) have absolute authority over all signs and signals. When a controller is present, follow their instructions even if traffic lights show green.
Variable Message Signs
Electronic signs on motorways and major roads display speed limits, lane status (X = closed, arrow = open), and warnings dynamically based on traffic and weather sensors. These limits are legally enforceable — a variable 80 km/h sign on a motorway overrides the usual 110 km/h limit.
Exam tip: A temporary speed limit sign takes precedence over a permanent one. Always apply the lower limit when in doubt.