Which warning sign is sometimes placed before traffic sign 302?

- 135
- 139· Correct answer
- 301
- 150

Sign 139 is a warning sign that alerts to a stop sign (302) further along the road. It is placed to give drivers early warning that they will be required to stop at the upcoming junction, especially in places where sign 302 is hard to see from a distance.
Sign 139 = warning of a stop sign ahead
Confusing sign 139 (warning before a stop) with sign 301 (give way)
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