RoadworksPortugal
Traffic rules
Portugal
1. Roadworks
Roadworks are construction, maintenance, repair or inspection activities carried out on or beside a road. They may temporarily change the road layout, lane widths, speed limits, priority, permitted directions and facilities for pedestrians or cyclists.
Drivers must follow the temporary signs, traffic lights, barriers, road markings and instructions from authorised personnel. They should reduce speed, increase their following distance and remain prepared for narrow lanes, stopped traffic, workers, machinery and sudden changes in the route.
What should you watch for when approaching roadworks in Portugal?
Look for temporary warnings, cones, barriers, narrow lanes and construction vehicles. Road layouts can change temporarily, including lane shifts, traffic-light control and short one-way sections. Expect workers and slow or stationary traffic near the worksite.
🔗 ansr.pt • ANSR official RST — corrected 2019 republication, sign descriptions and markings
Is a temporary speed limit at roadworks binding in Portugal?
Where an authorised temporary regulatory speed limit is in force, you must obey it. A roadworks warning alone should not be mistaken for a new numerical limit, but conditions may require driving more slowly.
🔗 ansr.pt • ANSR official RST — corrected 2019 republication, sign descriptions and markings
What if only one lane remains open through roadworks in Portugal?
Follow the temporary signals, stop/go instructions, lane arrows and priority signs. Do not enter an opposing traffic lane until permitted, and give vulnerable road users and road workers extra room.
🔗 ansr.pt • ANSR official RST — corrected 2019 republication, sign descriptions and markings
Warning for roadworks.
English • Traffic sign A23 • Roadworks. Indicates works or obstacles on the road.
Português • A23 • Trabalhos na via. Indicação da existência de obras ou obstáculos na via.
Sources
🔗 Commons.wikimedia.org (Gigillo83 • CC BY-SA 4.0)
🔗 Diariodarepublica.pt • Regulamento de Sinalização do Trânsito • artigo 19.º • A23
🔗 Ansr.pt • Republicação oficial retificada • A23 • página 11
SVG source: Gigillo83 • CC BY-SA 4.0 • Original revision 2015-03-16. Wikimedia original unmodified.
