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Truck Escape Ramp: What It Means & What To Do

Truck Escape Ramp (W7-4) - diamond yellow with black warning sign: An emergency escape ramp for trucks is ahead
MUTCD CodeW7-4
CategoryWarning Signs
ShapeDiamond
ColorYellow with black

What Does the Truck Escape Ramp Mean?

An emergency escape ramp for trucks is ahead.

About This Sign

Truck escape ramps are built into steep downhill grades for vehicles that lose braking ability. They use deep gravel or sand to stop runaway vehicles.

Where you will see it

You meet this sign on a long, steep downhill road, warning that an emergency escape ramp for trucks is coming up for vehicles that cannot stop.

What to do

  • Keep your lane clear and do not stop near the ramp.
  • Never park or drive onto the ramp unless it is an emergency.
  • Use a lower gear on the grade so you do not need it.

A common mistake

Drivers sometimes see the ramp as a pull-off or rest spot. It is built for runaway vehicles, and parking there could block someone who needs it.

What to remember for the test

Remember what the ramp is for: it uses deep gravel or sand to stop vehicles that have lost their brakes, and it sits on steep downhill grades.

Other Warning Signs

Frequently Asked Questions

What does the Truck Escape Ramp mean?

An emergency escape ramp for trucks is ahead.

What shape and color is the Truck Escape Ramp?

The Truck Escape Ramp uses the Diamond shape and Yellow with black coloring.

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