Warning signs
Two-way traffic on route crossing ahead
What it means
The road crossing yours just ahead carries traffic in both directions, and you usually meet this coming off a one-way street. It matters because you have to look both ways at the junction, not just the way you have got used to. Slow right down and check right and left before you pull out.
Test yourself on signs like this one
Free with an account. Each answer tells you what the sign means, not just whether you were right.