Warning signsUnited States
Traffic rules
United States
Priority signs
Warning signs
Prohibitory signs
Mandatory signs
Information signsWarning signs
A warning sign is a traffic sign that alerts drivers to a potential danger or change in road conditions ahead, giving them enough time to slow down and react safely. These signs warn about hazards such as sharp bends, pedestrian crossings, slippery surfaces, merging traffic, animals on the road, or upcoming intersections. Their purpose is not to forbid or command anything, but simply to prepare drivers for situations that require extra attention.
How should I recognise hazard warnings in the United States?
Typical hazard warnings are yellow diamonds; the MUTCD also specifies other colours and shapes for particular warnings.
How should I react to a pedestrian warning in the United States?
Reduce speed, look along both sides of the road and be ready to stop. The warning identifies a pedestrian hazard ahead; children, people with limited mobility or others may enter the road unexpectedly.
Does a traffic-lights-ahead warning require an immediate stop in the United States?
No. A warning sign is not an automatic STOP instruction and does not create a new numerical speed limit. Reduce speed when necessary, look for a queue or a concealed signal, and obey the traffic lights and any separate speed or stop signs.
1. Stop and give way
This traffic sign means stop and give way. You must come to a complete stop before entering the intersection and give way to traffic that has priority. Proceed only when it is safe.
English • R1-1 • Stop. Stop completely before entering the junction and proceed only when it is safe.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page115
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-07-01. Wikimedia original unmodified.
2. Give way
This traffic sign means give way. Slow down and give way to traffic that has priority. Stop if necessary and proceed only when it is safe.
English • R1-2 • Yield. Give way to conflicting traffic. Slow down or stop as necessary before proceeding.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page115
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-07-03. Wikimedia original unmodified.
3. Give way ahead
This traffic sign indicates give way ahead. A give-way requirement applies at the location ahead. Reduce speed in good time and be prepared to stop if necessary.
English • W3-2 • Yield ahead. Warns of a yield sign ahead. Prepare to slow down and give way.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page218
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
4. Stop and give way ahead
This traffic sign indicates stop and give way ahead. A stop sign applies at the location ahead. Reduce speed in good time and be prepared to come to a complete stop.
English • W3-1 • Stop ahead. Warns of a stop sign ahead. Prepare to stop completely.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page218
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
5. Warning for an uncontrolled crossroad
This traffic sign indicates a warning for an uncontrolled crossroad. An intersection without traffic signals or signs assigning priority lies ahead. Reduce speed, watch for traffic approaching from other directions and follow the applicable local priority rules.
English • W2-1 • Cross road. Warns of a crossroads ahead where traffic may enter or cross your path.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page220
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
6. Warning for a side road from the right
This traffic sign indicates a warning for a side road from the right. A side road joins the road ahead from the right at an uncontrolled junction. Reduce speed, watch for traffic entering from the side road and follow the applicable default priority rules.
English • W2-2 • Side road on the right. Warns of a side road joining from the right.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page220
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
7. Warning for a roundabout
This traffic sign indicates a warning for a roundabout. A roundabout lies ahead. Reduce speed and follow the applicable priority signs, traffic signals and local roundabout rules when approaching and entering it.
English • W2-6 + W16-12aP • Roundabout ahead. Warns of a roundabout ahead. Slow down and follow the signs controlling the approach.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page220
Image via Commons.wikimedia.org
Federal Highway Administration - MUTCD • Public domain • Source revision 2013-05-10. Wikimedia original unmodified.
8. Warning for a hairpin bend to the right
This traffic sign warns of a hairpin bend to the right. The road ahead makes a very sharp turn, so reduce speed and be prepared to steer sharply to the right.
English • W1-11R • Hairpin curve to the right. Warns of a very sharp curve to the right. Reduce speed before entering the curve.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page194
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
9. Warning for a curve to the right
This traffic sign indicates a warning for a curve to the right. A right-hand bend lies ahead. Reduce speed before entering the curve, maintain your lane position and use smooth steering.
English • W1-2R • Curve to the right. Warns of a curve to the right. Reduce speed as necessary before the curve.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page194
SVG source: MUTCD_W1-2L.svg: derivative work: Fry1989 • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
10. Warning for a sharp curve to the right
This traffic sign indicates a warning for a sharp curve to the right. A tight right-hand bend lies ahead. Reduce speed before entering the curve, remain within your lane and use smooth steering, particularly when visibility or road grip is reduced.
English • W1-1R • Turn to the right. Warns of a sharp change of direction to the right. Reduce speed before the turn.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page194
SVG source: MUTCD_W1-1L.svg: derivative work: Fry1989 • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
11. Warning for a double curve, first right then left
This traffic sign indicates a warning for successive curves, with the first curve to the right. Reduce speed before entering the winding section, maintain your lane position and be prepared for further changes in direction.
English • W1-4R • Reverse curve, first to the right. Warns of successive curves, first to the right and then to the left.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page194
SVG source: MUTCD_W1-4L.svg: derivative work: Fry1989 • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
12. Warning for curves
This traffic sign indicates a warning for a series of curves. One or more changes in direction lie ahead and may occur in quick succession. Reduce speed before entering the winding section, maintain your lane position and use smooth steering.
English • W1-5R • Winding road, first curve to the right. Warns of a series of curves, beginning with a curve to the right.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page194
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
13. Warning for a road narrowing
This traffic sign indicates a warning for a road narrowing. The available width of the road or carriageway decreases ahead. Reduce speed, maintain sufficient lateral clearance and watch carefully for approaching or adjacent traffic.
English • W5-1 • Road narrows. Warns that the road becomes narrower ahead. Reduce speed and allow space for oncoming traffic.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page210
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
14. Warning for a road narrowing on the right
This traffic sign indicates a warning for a road narrowing on the right. The available road width decreases from the right side ahead. Reduce speed, follow the lane markings and maintain sufficient clearance from other traffic and the road edge.
English • W4-2R • Right lane ends. Warns that the right lane ends ahead. Merge safely into the continuing lane.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page223
SVG source: see below • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
15. Warning for a road with two-way traffic
This traffic sign indicates a warning for two-way traffic. Oncoming traffic will use the same road or carriageway ahead. Keep to the correct side of the road and overtake only where it is permitted and clearly safe.
English • W6-3 • Two-way traffic. Warns of two-way traffic ahead. Keep to the right and watch for oncoming vehicles.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page223
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
16. Warning for a speed bump
This traffic sign indicates a warning for a speed bump. A raised traffic-calming feature lies ahead. Reduce speed before reaching it to maintain vehicle control and avoid damage or discomfort.
English • W8-1 • Bump. Warns of a sharp rise in the road surface. Reduce speed before reaching it.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page215
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
17. Warning for a dip in the road
This traffic sign indicates a warning for a dip in the road. A sudden depression in the road surface lies ahead and may affect vehicle stability or visibility. Reduce speed before reaching the dip and be prepared for water or other hazards that may collect in the lowered section.
English • W8-2 • Dip. Warns of a sharp depression in the road surface. Reduce speed before reaching it.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page215
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
18. Warning for a steep descent
This traffic sign indicates a warning for a steep descent. A steep downhill gradient lies ahead and the vehicle may gain speed quickly. Reduce speed before the descent, select a suitable gear and use engine braking where appropriate. Allow extra distance for heavy or towing vehicles.
English • W7-1a • Hill with grade. Warns of a steep descent; the illustration shows an 8% grade. Use a suitable gear and control your speed.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page208
SVG source: Author not stated on source page • Public domain • Original revision 2013-05-04. Wikimedia original unmodified.
19. Warning for a tunnel
This traffic sign indicates a warning for a tunnel. Driving conditions may change at the tunnel entrance because of reduced light, limited visibility or restricted space. Reduce speed when necessary and follow the applicable rules for vehicle lighting, stopping, overtaking and lane use.
English • SW37(CA) • Tunnel ahead. Warns of a tunnel ahead. Adjust your speed and follow the tunnel's traffic controls. California design, documented in the Caltrans sign specifications and the 2026 California MUTCD.
Sources
🔗 Commons.wikimedia.org
🔗 Dot.ca.gov • Caltrans: SW37(CA) specification
🔗 Dot.ca.gov • Caltrans: 2026 California MUTCD, section2C.18
SVG source: California Department of Transportation • Public domain • Original revision 2024-05-22. Wikimedia original unmodified.
20. Warning for a movable bridge
This traffic sign indicates a warning for a movable bridge. The bridge ahead can open, lift or move to allow water traffic to pass. Reduce speed and be prepared to stop when required by barriers, traffic lights or other signals.
English • W3-6 • Drawbridge. Warns of a movable bridge ahead. Obey its signals, barriers and other traffic controls.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page219
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
Artwork verified against Mutcd.fhwa.dot.gov • official published diagram W3-6.
21. Warning for traffic lights ahead
This traffic sign indicates a warning for traffic lights ahead. Traffic signals are located ahead and may not be visible early enough without advance warning. Reduce speed and be prepared to stop if the signal requires it.
English • W3-3 • Signal ahead. Warns of traffic lights ahead. Be prepared to stop when the signal requires it.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page218
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-06-06. Wikimedia original unmodified.
22. Warning for falling rocks
This traffic sign indicates a warning for falling rocks. Rocks or stones may fall from nearby slopes or may already be lying on the road. Reduce speed, scan the road ahead and be prepared to avoid or stop for fallen material.
English • W50-1(CA) • Rock-slide area. Warns that rocks may fall or slide onto the road. Reduce speed and watch for debris. California design, documented as W50-1(CA) in the Caltrans sign specifications.
Sources
🔗 Commons.wikimedia.org
🔗 Dot.ca.gov • Caltrans: W50-1(CA) specification
SVG source: California Department of Transportation • Public domain • Original revision 2024-05-22. Wikimedia original unmodified.
23. Warning for roadworks
This traffic sign indicates a warning for roadworks. Construction or maintenance work is taking place on or beside the road. Reduce speed where necessary and be prepared for workers, machinery, temporary traffic signals, changed lane layouts or uneven road surfaces.
English • W21-1 • Workers. Warns of workers in or near the road. Slow down and follow the temporary traffic controls.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page842
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
24. Warning for loose chippings on the road surface
This traffic sign indicates a warning for loose chippings. Loose stones or gravel may reduce tyre grip and can be thrown up by passing vehicles. Reduce speed, increase your following distance and avoid sudden braking, acceleration or steering movements.
English • W8-7 • Loose gravel. Warns of loose gravel on the road. Reduce speed and avoid sudden braking or steering.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page215
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
25. Warning for a slippery road surface
This traffic sign indicates a warning for a slippery road surface. The road ahead may provide reduced tyre grip because of water, ice, mud, oil or another surface condition. Reduce speed and avoid sudden braking, acceleration or steering movements.
English • W8-5 • Slippery surface. Warns of a road surface that may be slippery. Reduce speed and avoid sudden manoeuvres.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page215
SVG source: Federal Highway Administration • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
26. Warning for strong crosswinds
This traffic sign indicates a warning for strong crosswinds. Side winds may suddenly affect vehicle stability and steering. Reduce speed, keep a firm but controlled grip on the steering wheel and take extra care with high-sided vehicles, motorcycles and trailers.
English • NYW7-16 • Crosswinds. Warns that strong winds may blow across the road. Reduce speed as necessary and keep firm control of the vehicle. New York design, documented in NYSDOT sign drawing SD-W23.
Sources
🔗 Commons.wikimedia.org
🔗 Dot.ny.gov • NYSDOT: SD-W23, NYW7-16
SVG source: No machine-readable author provided. Overpush~commonswiki assumed (based on copyright claims). • Public domain • Original revision 2013-05-04. Wikimedia original unmodified.
27. Warning for a height restriction
This traffic sign indicates a warning for a height restriction. The available clearance ahead is limited, for example at a bridge, tunnel or other overhead structure. Drivers of tall vehicles should check their vehicle height and use another route if the vehicle cannot pass safely.
English • W12-2 • Low clearance. Warns of restricted overhead clearance; the illustration shows 12 feet 6 inches. Do not proceed if your vehicle or load cannot clear the obstruction safely.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page210
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
28. Warning for a narrowing
This traffic sign indicates a warning for a narrowing ahead. The available road width decreases ahead. Reduce speed when necessary and be prepared for less lateral space between vehicles, obstacles or the road edge.
English • W5-2a (2000 design) • Narrow bridge. Warns of a narrow bridge ahead. Reduce speed and allow space for oncoming vehicles. This is the narrow-bridge symbol from the 2000 MUTCD. In the current manual, W5-2a identifies a NARROW UNDERPASS word sign; the older symbol is not presented as the current design.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: 2000 MUTCD, Chapter2C, printed page2C-15
SVG source: FHWA, Department of Transportation • Public domain • Original revision 2014-03-15. Wikimedia original unmodified.
29. Warning for an obstacle, pass left or right
This traffic sign indicates a warning for an obstacle where you have to pass left or right. It alerts drivers to a fixed obstacle in the roadway—such as a traffic island, bollard, or construction zone—where vehicles are permitted to pass on either side.
English • W12-1 • Pass either side. Indicates that traffic may pass on either side of the island or obstruction. Follow the road markings and other signs.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page210
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
30. Warning for an unpaved road surface
This traffic sign indicates a warning for an unpaved road surface. The paved surface ends or changes to gravel, dirt or another loose material. Reduce speed and be prepared for reduced grip, uneven surfaces, dust and loose stones.
31. Warning for a side road merging with the main road
This traffic sign indicates a warning for a side road merging with the main road. Traffic from a side road joins the traffic flow ahead. Stay alert, maintain a safe gap and adjust your speed when necessary to allow traffic to merge safely.
English • W4-1R • Merge from the right. Warns that traffic streams merge from the right. Adjust your speed and maintain a safe gap.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page223
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
32. Warning for low-flying aircraft
This traffic sign indicates a warning for low-flying aircraft. Aircraft may pass over the road at low altitude and can create sudden noise or visual distraction. Keep your attention on the road and maintain control of the vehicle.
English • W11-23-DE • Low-flying aircraft. Warns of low-flying aircraft near the road. Remain attentive and maintain control of the vehicle. Delaware design, documented in the 2018 DelDOT sign book.
Sources
🔗 Commons.wikimedia.org
🔗 Deldot.gov • DelDOT: 2018 sign book, printed page44
Image via Commons.wikimedia.org
No machine-readable author provided. Overpush~commonswiki assumed (based on copyright claims). • Public domain • Source revision 2013-05-04. Wikimedia original unmodified.
33. Warning for cattle on the road
This traffic sign indicates a warning for cattle. Cattle or other livestock may be crossing, walking along or standing near the road. Reduce speed, be prepared to stop and avoid sudden movements or unnecessary use of the horn that could startle the animals.
English • W11-4 • Cattle. Warns that cattle may enter or cross the road. Slow down and be prepared to stop.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page234
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
34. Warning for crossing deer
This traffic sign indicates a warning for crossing deer. Deer or other wild animals may enter the road unexpectedly, especially around dawn or dusk. Reduce speed, watch the roadside carefully and be prepared for more than one animal to cross.
English • W11-3 • Deer. Warns that deer may enter or cross the road. Slow down and be prepared to stop.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page234
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
35. Warning for a playground
This traffic sign indicates a warning for a playground. Children may be playing close to the road and may enter or cross it unexpectedly. Reduce speed, watch the roadside carefully and be prepared to stop.
English • W15-1 • Playground. Warns of a playground nearby, where children may enter the road unexpectedly. Slow down and be prepared to stop.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page234
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2020-10-27. Wikimedia original unmodified.
36. Warning for pedestrians
This traffic sign indicates a warning for pedestrians. Pedestrians may be walking near or crossing the road ahead. Reduce speed, watch carefully and be prepared to stop.
English • W11-2 • Pedestrians. Warns that pedestrians may enter or cross the road. Slow down and be prepared to give way or stop.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page234
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2020-10-27. Wikimedia original unmodified.
37. Warning for a pedestrian crossing
This traffic sign indicates a warning for a pedestrian crossing. A designated pedestrian crossing lies ahead. Reduce speed when necessary, watch carefully for pedestrians and be prepared to give way or stop according to the applicable local priority rules.
English • W11-2 family • Pedestrian crossing. Warns of pedestrians crossing the road. Slow down and be prepared to give way or stop. The pedestrian-warning family is confirmed. The crossing bars in this illustration are absent from the current W11-2 drawing; the exact older variant has not been confirmed.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page234
Image via Commons.wikimedia.org
The original uploader was NinjaCharlie at English Wikipedia. Later versions were uploaded by CountingPine at en.wikipedia. • Public domain • Source revision 2026-02-26. Wikimedia original unmodified.
38. Warning for cyclists
This traffic sign indicates a warning for cyclists. Cyclists may be riding along or crossing the road ahead. Reduce speed, watch carefully for cyclists and maintain the passing distance required by the applicable local rules.
English • W11-1 • Bicycles. Warns that cyclists may enter or cross the road. Slow down and maintain a safe separation.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page232
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
39. Warning for equestrians
This traffic sign indicates a warning for equestrians. Horse riders may be on or near the road ahead. Reduce speed, allow plenty of space and avoid unnecessary use of the horn or sudden movements that could startle a horse.
English • W11-7 • Equestrian crossing. Warns that horse riders may cross the road. Slow down and pass without startling the horses.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page234
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
40. Warning for tractors
This traffic sign indicates a warning for tractors or other agricultural vehicles. Slow-moving agricultural vehicles may enter, cross or travel along the road ahead. Reduce speed and overtake only where it is permitted and clearly safe.
English • W11-5 • Farm vehicles. Warns that tractors or other farm vehicles may enter or cross the road.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page232
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
41. Warning for emergency vehicles
This traffic sign indicates a warning for emergency vehicles. Emergency vehicles may enter, leave or cross the road unexpectedly. Reduce speed, keep access clear and be prepared to give way when required.
English • W11-8 • Emergency vehicles. Warns that emergency vehicles may enter the road, for example from a fire station. Be prepared to give way.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page232
SVG source: Author not stated on source page • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
42. Warning for trams
This traffic sign indicates a warning for trams. Tram tracks cross or run along the road ahead, and trams may enter the traffic path. Reduce speed, watch carefully for approaching trams and follow the applicable traffic signals, priority signs and local rules.
English • W82(CA) • Light rail crossing. Warns of a light rail or tram crossing ahead. Watch for rail vehicles and obey the crossing controls. California design, documented as W82(CA) in the Caltrans sign specifications.
Sources
🔗 Commons.wikimedia.org
🔗 Dot.ca.gov • Caltrans: W82(CA) specification
Image via Commons.wikimedia.org
California Department of Transportation • Public domain • Source revision 2024-05-22. Wikimedia original unmodified.
43. Warning for a railway crossing without barriers
This traffic sign indicates a warning for a railway crossing without barriers. It alerts drivers to an upcoming level crossing where railway tracks cross the road and no barriers or gates are present to stop traffic. Drivers should slow down and look both ways for trains.
English • W10-1 • Railway crossing ahead. Warns of a railway level crossing ahead. Be prepared to obey its signals and signs, and never enter if your exit is blocked.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page1043
SVG source: Federal Highway Administration – United States Department of Transportation • Public domain • Original revision 2024-05-23. Wikimedia original unmodified.
44. Warning for a railway crossing with one track
This traffic sign indicates a warning for a railway crossing with one track. It alerts drivers to a level crossing where a single railway track crosses the road. Drivers should approach with caution and be prepared to stop, even if no barriers or warning lights are active.
English • R15-1 • Railway crossing crossbuck. Marks a railway level crossing. Give way to rail traffic and obey any stop sign, yield sign, signals or barriers at the crossing.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page1037
SVG source: Author not stated on source page • Public domain • Original revision 2013-05-04. Wikimedia original unmodified.
45. Warning for a railway crossing with two or more tracks
This traffic sign indicates a warning for a railway crossing with two or more tracks. It alerts drivers to a level crossing where more than one railway track crosses the road. More than one train may pass in succession or from different directions, so drivers should check carefully before crossing and never proceed until all tracks are clear.
English • R15-2P • Number of tracks. A supplementary plaque indicating the number of tracks at a railway crossing; the illustration shows three. Check for trains on every track before crossing.
Sources
🔗 Commons.wikimedia.org
🔗 Mutcd.fhwa.dot.gov • FHWA: MUTCD, 11th Edition with Revision1, PDF page1037
SVG source: Federal Highway Administration - MUTCD • Public domain • Original revision 2012-10-05. Wikimedia original unmodified.
