Traffic lights warningJapan

Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.


41. 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.

Traffic lights warning
Traffic-lights warning sign near the terminus of National Route 278. (Japan)
Wikimedia.org • BATACHAN • CC BY-SA
What does a traffic lights warning mean?

A traffic lights warning alerts drivers that traffic signals are located ahead.

Why is a traffic lights warning sign used?

It may be used where traffic lights are unexpected, difficult to see sufficiently early or located on a road where advance warning improves safety.

How should you react to a traffic lights warning?

Remain alert, reduce speed when necessary and be prepared to stop at the traffic lights or behind waiting traffic.

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