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Yellow diamond with black text reading RAMP METER AHEAD on three lines
MUTCD
W3-7
Category
warning
Color
yellow
Shape
diamond

Ramp Meter Ahead

A ramp-metering signal controls entry to the freeway ahead.

Posted on freeway entrance ramps where a traffic light regulates how vehicles merge onto the mainline. Slow as you approach, observe the meter signal, and stop on red; typically only one or two vehicles per green are allowed before the signal cycles again.

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