Guide & Services Road Sign (D9-1)
Emergency Telephone Sign Sign Meaning & Driving Rules
Indicates the availability of an emergency roadside telephone or call box to contact highway assistance.
Required Driver Action & Right-of-Way Protocol
Use the emergency phone to contact highway patrol or roadside emergency services.
Detailed Overview & Purpose
The Emergency Telephone sign (D9-1) marks roadside call boxes and rest stop phones that connect directly to state highway patrol dispatch for assistance during vehicle breakdowns, collisions, or medical emergencies.
Key Standard & Origin: Emergency highway call boxes are solar-powered and automatically transmit your exact GPS milepost location to dispatch.
Where You'll Find This Sign
Highway call boxes, bridge emergency pull-offs, and rest area plazas.
Common Driver Mistakes to Avoid
Stopping on active lanes rather than pulling fully up to the call box shoulder pad.
How This Sign Appears on the DMV Knowledge & Road Test
Emergency roadside assistance and highway breakdown protocol questions.
Legal Penalties and Moving Violations
None.
When you encounter the official Emergency Telephone Sign (D9-1) on a roadway, what is your legal duty?
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