Traffic lights warningUruguay

An introduction to the traffic rules and road signs of Uruguay. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.


1. Traffic lights warning

A traffic lights warning is a warning sign that alerts drivers that traffic signals are located ahead. It is commonly used where the signals may be unexpected, difficult to see from a distance or located on a road where drivers need additional time to prepare to stop.

Drivers approaching a traffic lights warning should reduce speed when necessary, watch for the signals ahead and be prepared to stop if the traffic light changes or traffic is waiting at the intersection.

How are traffic lights ahead warned of in Uruguay?

A yellow warning sign showing a traffic-signal symbol can alert drivers to traffic lights ahead; the exact shape and application follow local sign standards. It warns of a potential need to stop, but does not replace the actual signals.

🔗 impo.com.uy • Uruguay Law 18191 — Amended Regulation 13.2(1)(a); Law 18191 Articles 15, 34–36 and 41

🔗 impo.com.uy • Decree 173/2013 Article 2 — operative replacement of Regulation 13.2, rural 90/80 and 60/40/20 km/h reductions

Does a traffic-lights-ahead warning require an immediate stop in Uruguay?

A traffic-lights-ahead warning is not an automatic Stop instruction. However, on rural roads outside urban and suburban areas, a danger warning without a numerical maximum triggers the statutory reduction to 60 km/h. Obey the actual traffic signals and any lower applicable restriction, and approach slowly enough to stop safely for a queue or a concealed signal.

🔗 impo.com.uy • Uruguay Law 18191 — Amended Regulation 13.2(1)(a); Law 18191 Articles 15, 34–36 and 41

🔗 impo.com.uy • Decree 173/2013 Article 2 — operative replacement of Regulation 13.2, rural 90/80 and 60/40/20 km/h reductions

What should you check if the next traffic lights are difficult to see in Uruguay?

Allow enough distance to stop before the marked line, watch for vehicles braking suddenly and be ready for a pedestrian or cyclist crossing. If the signals are out of order or flashing, follow the applicable local failure and priority rules rather than guessing from the warning sign.

🔗 impo.com.uy • Uruguay Law 18191 — Amended Regulation 13.2(1)(a); Law 18191 Articles 15, 34–36 and 41

🔗 impo.com.uy • Decree 173/2013 Article 2 — operative replacement of Regulation 13.2, rural 90/80 and 60/40/20 km/h reductions