Yellow diamond-shaped signs alert you to potential hazards ahead. Reduce speed and increase your concentration when you see these signs.
Key Rule:
Warning signs prepare you for road conditions ahead. They don’t prohibit action—they warn of hazards. When you see one, immediately reduce speed and increase your alertness.
Dangerous Corner Ahead
Sharp turn to the left. Reduce speed and be ready to steer.
Dangerous Bend Ahead
Severe curve ahead. Reduce speed immediately.
Series of Sharp Corners
Multiple tight bends ahead. Reduce speed and be alert.
Series of Sharp Bends
Winding road with tight bends ahead.
Crossroads Ahead
Major junction ahead. Be prepared to give way.
Sideroad Ahead Left
Side road joining from the left. Watch for emerging traffic.
T-Junction Ahead
T-shaped intersection ahead. Be prepared to stop.
Y-Junction Ahead
Y-shaped intersection ahead. Reduce speed and be alert.
Crossroads with Minor Road
Minor road joins. Expect traffic from both sides.
Minor Side Road Ahead Left
Minor side road joining from the left ahead.
T-Junction with Minor-Right
T-junction where minor road joins from right.
Y-Junction with Minor Right
Y-shaped junction with minor road from right.
Staggered Crossroads
Roads offset at intersection. Be extra cautious.
Traffic Cross-Over Ahead
Traffic going both directions on main road ahead.
Roundabout Ahead
Circular intersection ahead. Give way to traffic on your right.
Crossroads with Major Road
Major road joins. Give way to traffic on major road.
T-Junction with Major Road
T-junction with major road. Prepare to give way.
Dual Carriageway Crossroads
Junction with dual carriageway road.
T-Junction Dual Carriageway
T-junction with dual carriageway ahead.
Sharp Rise Ahead
Uphill slope. Check your brakes are working well.
Sharp Dip Ahead
Sudden depression in road. Reduce speed before dip.
Series of Bumps or Hollows
Uneven road with bumps. Reduce speed to maintain control.
Steep Descent Ahead
Downhill slope. Use lower gear. Avoid braking continuously.
Steep Ascent Ahead
Uphill slope. Use lower gear for better traction.
Danger of Falling Rocks
Rocks may fall on road. Be alert and reduce speed.
Low Flying Aircraft
Aircraft may fly low over road. Don’t be startled by noise.
Slippery Road
Loss of grip likely (wet, ice, loose surface). Reduce speed and increase following distance.
School Ahead
School zone. Reduce speed—children may be crossing.
End of Middle Obstruction
End of divided road/island. Both directions now share road.
Level Crossing Without Barrier
Railway crossing with no barrier. Look both ways and listen.
Unprotected Quay/River
Unprotected edge near water. Reduce speed. Be careful not to go over edge.
Traffic Signals Ahead
Traffic lights coming up. Be prepared to stop.
Sheep or Cattle
Farm animals may cross road. Reduce speed and be ready to stop.
Pedestrians Crossing
Pedestrian crossing ahead. Reduce speed and be prepared to stop.
Two-Way Traffic
Traffic flows in both directions. Be extra cautious when overtaking.
End of Dual Carriageway
Dual road ends. Oncoming traffic now on same road. Reduce speed.
Level Crossing with Lights/Barriers
Railway crossing with traffic lights/gates. Obey signals.
Merging Traffic
Traffic merging from side road. Be alert for joining vehicles.
Merging/Diverging Traffic
Traffic merging and diverging. Be extra alert and cautious.
Road Narrows Left
Road becomes narrower. Reduce speed and position carefully.
Road Narrows Right
Road narrows on right side. Be ready to adjust position.
Road Narrows Both Sides
Road narrows on both sides. Reduce speed and stay centered.
Overhead Electric Cables
Power cables above road. Be careful if you have a high vehicle (caravans, lorries).
Mini Roundabout
Small circular junction. Give way to traffic on right.
Accompanied Horses/Ponies
Horses being led may cross road. Reduce speed and pass cautiously.
Cattle and Farm Animals
Farm animals may be crossing. Reduce speed and be ready to stop.
Deer Crossing
Wild deer may cross the road. Reduce speed and be alert.
Level Crossing with Gates
Railway crossing with lifting gates. Obey signal lights.
Children Crossing
School area or play zone. Reduce speed—children may cross.
Tunnel Ahead
Switch on dipped headlights before entering tunnel.
Tram Lane Crossing Ahead
Tram line crosses here. Watch for trams and give way.
Crosswinds
Strong side winds. Grip the steering wheel firmly and reduce speed.
Loop Road
Circular road or roundabout. Give way to traffic on right.
Lane Loss
A lane will disappear ahead. Merge into remaining lanes smoothly.
Start of Passing Lane
Extra lane for overtaking begins. Use it to pass if safe.
Start of Climbing Lane
Extra lane for uphill traffic. Use it to climb hills if safe.
Sharp Change of Direction Left
Chevron board. Sharp left turn ahead. Reduce speed significantly.
Sharp Change of Direction Right
Chevron board. Sharp right turn ahead. Reduce speed significantly.
Test Tip:
Examiners watch how you respond to warning signs. Show you’ve seen the sign by: (1) Reducing speed, (2) Checking mirrors, (3) Increasing concentration, (4) Preparing for the hazard ahead.
🚫 Regulatory & Mandatory Signs (Red & Blue)
Red prohibition signs (NO…) and blue mandatory signs (MUST…). These are legal requirements you MUST obey or face fines/penalties.
Critical Rule:
RED CIRCLE = PROHIBITION: “No entry,” “No parking,” “No overtaking” — Do NOT do it.
BLUE CIRCLE = MANDATORY: “Keep right,” “Go straight,” “Turn left” — You MUST do it.
No Entry
Do not enter. Turn back immediately. Road closed to traffic.
Per Axle Restriction
Vehicles with axle weight over limit cannot pass. Weight limit shown.
Clearway
No stopping at any time. You cannot stop or park here.
No Entry (Alternative)
Traffic prohibited. Entry forbidden for all vehicles.
No Right Turn
Right turns prohibited. Turn left or go straight only.
No Left Turn
Left turns prohibited. Turn right or go straight only.
No Overtaking
Passing other vehicles prohibited. Stay in your lane.
No Entry for HGV Over 3t
Heavy goods vehicles over 3 tonnes prohibited from entering.
Rural Speed 80km/h
Speed limit 80km/h on rural roads. Diagonal line = no speed limit (Germany style).
Height Restriction
Maximum height 4.65m. Caravans, double-deckers, tall vehicles cannot pass.
No U-Turn
U-turns prohibited. Cannot turn around here.
Parking Permitted
Parking allowed in this zone. Blue background = allowed zone.
Parking Prohibited
No parking. Do not stop vehicle here.
Taxi Rank
Reserved for taxi vehicles only. Other vehicles cannot park here.
Pedestrian Street/Zone
Pedestrians only area. Vehicles not permitted (except at certain times).
Speed Limit 50km/h
Maximum speed is 50km/h. Obey speed limit at all times.
HGV Weight Restriction
Vehicles over 7.5 tonnes cannot pass. Check your weight.
HGV Length Restriction
Vehicles over 10.5 metres cannot pass. Check your length.
HGV Width Restriction
Vehicles over 2.15 metres wide cannot pass. Check your width.
No Right Lane for HGV Over 3 Axles
HGVs with 3+ axles cannot use right lane.
No Horse Riding
Horses and riders not allowed on this road.
No Pedal Cycles
Bicycles prohibited on this road/motorway.
Cul De Sac Dead End
Dead end street. Road goes nowhere. You must turn back.
Motorway Ahead
Motorway number and direction indicator. Prepare for high-speed traffic.
300m Until Next Exit
Distance to motorway exit. Plan your exit in advance.
End of Motorway in 500m
Motorway ends soon. Prepare to reduce speed.
End of Motorway
Motorway ends. Resume normal speed limits and watch for traffic lights.
Shared Track
Pedestrians and cyclists share this track. Give way to all users.
Cycle Track on Left
Dedicated cycle lane on left. Do not drive or park in cycle lane.
Hospital in 100m
Hospital 100 metres ahead. Information sign showing facility location.
Keep Left
Keep to the left side of road. Mandatory instruction.
Keep Right
Keep to the right side of road. Mandatory instruction.
Pass Either Side
May pass on either side. Obstacle in middle of road to pass.
Go Straight Ahead
Must proceed straight. Do not turn left or right.
Turn Right
Must turn right at this junction. No other direction allowed.
Turn Left
Must turn left at this junction. No other direction allowed.
Turn Right Ahead
Turn right at next junction ahead. Prepare to turn.
With Flow Bus Lane on Left
Bus lane runs same direction as traffic on left. Reserved for buses.
With Flow Bus Lane on Right
Bus lane runs same direction on right. Reserved for buses.
Contra Flow Bus Lane
Bus lane runs opposite direction to main traffic. Buses only.
Tram Lane on Right
Tram lane on right side. Do not enter or drive on tram lane.
Tram Lane on Left
Tram lane on left side. Do not block or enter tram lane.
Critical Test Advice:
Failing to obey a regulatory sign is an immediate test failure. These are LEGAL requirements. When you see red = STOP / DON’T DO IT. When you see blue = MUST DO IT. No exceptions.
🚧 Temporary & Roadwork Signs
Orange diamond-shaped and chevron signs indicating roadworks, lane closures, and temporary hazards. Treat these seriously—road conditions may change rapidly.
What to Remember:
Orange temporary signs take precedence over permanent signs. When roadworks are present, follow the temporary signs’ instructions even if permanent signs say otherwise. Reduce speed and stay alert.
Roadworks Ahead
Construction or road maintenance ahead. Reduce speed and be alert for workers.
End of Roadworks
Roadworks have ended. Resume normal driving. Return to normal speed limits.
Two-Way Traffic
Traffic flows in both directions. Be extra careful when overtaking.
Single Lane Crossover
One-way traffic controlled by signals or flags. Proceed cautiously.
Chevron Board (Left Turn)
Sharp change of direction to the left ahead. Reduce speed significantly.
Chevron Board (Right Turn)
Sharp change of direction to the right ahead. Reduce speed significantly.
Loose Chippings
Loose gravel on road surface. Reduce speed and avoid harsh braking or acceleration.
Uneven Surface
Potholed or bumpy road. Reduce speed to maintain control.
Lane Closed
This lane is closed. Merge into adjacent lanes safely.
Merge Left
Traffic must shift to the left lane. Merge safely and calmly.
Merge Right
Traffic must shift to the right lane. Look for a safe gap.
Site Access
Construction or emergency access. Do not block the entrance.
Examiner’s Focus:
During your test, demonstrate that you treat temporary signs with appropriate caution. When you encounter roadworks, show the examiner that you’re aware of the hazards and responding with reduced speed and increased alertness.
🛣️ Motorway & Information Signs
Blue signs providing mandatory instructions and information on motorways, cycle lanes, shared paths, and other facility-specific guidance.
What to Remember:
Blue signs with white symbols are mandatory signs. On motorways, these signs control traffic flow and indicate lane restrictions. You must obey them. Information signs help you navigate and find facilities.
Motorway Ahead
Motorway number and direction. Prepare for high-speed traffic.
Keep Right
Blue mandatory sign. Keep to the right lane on motorway.
Keep Left
Blue mandatory sign. Keep to the left lane on motorway.
Go Straight Ahead
You must proceed straight. Do not exit at the next junction.
300m Until Next Exit
Distance to the next motorway exit. Plan your exit in advance.
End of Motorway
Motorway ends ahead. Be prepared for lower speed limits and traffic lights.
Cycle Track
Cyclists have their own dedicated lane. Do not drive or park here.
Shared Track
Pedestrians and cyclists share this path. Give way to vulnerable road users.
Bus Lane
Reserved for buses during operational hours. Do not drive in this lane unless permitted.
Hospital (100m)
Hospital 100 metres ahead. Blue information sign.
Junction Box
Shows traffic distribution at a complex junction. Follow your lane.
Parking Area
Information sign showing location of parking facilities ahead.
🚗 Motorway Rules Reference
Speed Limit: Maximum 120km/h for cars (100km/h for HGVs)
Minimum Speed: 60km/h (except during congestion)
Overtaking: Pass on the left lane only
Hard Shoulder: Use only in emergencies or when directed
Headlights: Use dipped headlights at all times
Stopping: Only allowed at service areas and emergency exits
During Your Test:
You may not encounter a motorway during your test, but if you do (on rare test routes), demonstrate that you understand motorway signs and follow them precisely. Show confident, smooth driving with appropriate lane discipline.
📚 Quick Study Tips
Browse by category. Each opens a full visual chart with sign meanings.
🎯 Learn by Category
Focus on one category at a time. Understand what each sign looks like and what it means before moving to the next.
💭 Memorize the Key Signs
The examiners will ask about warning signs, speed limits, no entry, no overtaking, and pedestrian crossing signs most frequently.
📸 Practice Recognition
Don’t just memorize—practice identifying signs in real driving. During lessons, ask your instructor to quiz you on signs you see.
⚡ Understand the Logic
Yellow = warning (be alert), Red = prohibition (don’t do it), Blue = mandatory (you must do it). Colors tell you the sign’s purpose.
🔄 Review Regularly
Spend 10-15 minutes daily reviewing signs during your study period. Consistency beats cramming.
🚗 Apply to Driving
When you’re on the road (as a learner or driver), consciously identify signs and understand what they mean. Real-world practice cements knowledge.
Ready to Start Your Driving Journey?
Book your first lesson with a patient, RSA Approved instructor trusted by learners across Wicklow.