Warning signs · W11-5
Farm Vehicle sign
Archive file: W11-05 Farm Vehicle/W11-05 Farm Vehicle 30x30.svg
FHWA public-use information
What it means
Watch for farm vehicles entering the roadway.
Source: FHWA MUTCD — MUTCD 11th Edition with Revision 1 (December 2025), Section 2C.54, paragraph 01, PDF page 232.
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Meaning
Farm Vehicle warns that farm equipment may enter or use the roadway unexpectedly. The federal manual includes it among vehicle-entry warnings, not among signs setting a speed limit. Expect an unfamiliar vehicle movement or a slower vehicle ahead rather than treating the tractor symbol as a route restriction.
What to do
Leave space when you encounter slow farm traffic. Pennsylvania describes rural tractors and horse-drawn vehicles with an orange triangle on the rear and tells drivers to stay back without honking to pass. The roadside tractor warning and the triangle on the moving vehicle have different roles.
Where it is used
Federal guidance uses the vehicle-entry warning family where sight distance is limited or the activity would be unexpected. The conflict can occur at a specific point or along a road section. A temporary or seasonal warning should be covered or removed when the activity is absent; do not infer a fixed daily operating schedule from the symbol.
- Official source · MUTCD 11th Edition with Revision 1, Section 2C.54, paragraphs 02–04 · PDF page 232 · Checked
- Official source · MUTCD 11th Edition with Revision 1, Section 2C.54, paragraph 03 · PDF page 232 · Checked
- Official source · MUTCD 11th Edition with Revision 1, Section 2C.54, paragraph 04 · PDF page 232 · Checked
A sign to tell apart
Truck warns specifically of truck entry or crossing. Farm Vehicle identifies farm equipment instead. Pennsylvania’s slow-traffic guidance is a separate handbook example of responding once you encounter a tractor; it does not establish exact Pennsylvania coverage of this federal warning design.
Practice with explanations
These are original learning questions based on the cited handbooks. Read each answer and its explanation below.
1. PennDOT associates the rear orange triangle on rural tractors with vehicles designed for speeds up to what value?
- 15 mph.
- 25 mph.
- 35 mph.
Answer: B. 25 mph.
The triangle identifies the slow vehicle class described as designed for 25 mph or below. It is not a posted limit for the surrounding road.
2. How does Pennsylvania advise you to follow farm tractors and horse-drawn vehicles?
- Leave a safe gap and avoid honking to pass.
- Follow closely so the driver sees your headlights.
- Sound the horn repeatedly until they leave the road.
Answer: A. Leave a safe gap and avoid honking to pass.
Stay back and do not honk to demand a pass. The handbook warns drivers to expect these slower vehicles in rural areas.
State source coverage
Handbook coverage and sample questions do not prove that a sign will appear on your exam. Even a published test scope cannot guarantee an individual exam question.
No state test-scope claim is independently approved for this study.
State variations
State-specific variations have not been independently established for this study.
Verified question coverage
These free state-bank questions were independently verified. This does not establish complete state-bank readiness, app availability or what will appear on your permit exam.
No currently verified state-bank question is available for this sign.
The linked 20-question permit quizzes do not currently include this sign.
This meaning is a federal MUTCD reference. Check your state's handbook for its rules and sign coverage; this page does not establish what appears on a state permit exam.
Try the free road sign quiz or find your state's handbook.
