This traffic signal (RTS-003), often seen at busy junctions, specifically controls movements with a dedicated green light for left turns. You must obey the signal aspect that applies to your lane and vehicle type. Always ensure the way ahead is clear before proceeding on a green signal, even if it's a filter arrow.
Master the meaning of the 4 Aspect Traffic Signal with a Green Left Turn, crucial for your Irish Driver Theory Test revision. This detailed sign interpretation helps you recognise traffic signal variations and understand when to proceed safely, a key element of your exam preparation.
Traffic signals regulate priority where conflicting movements cannot safely proceed together. This signal display may apply to general traffic, turning traffic, buses, cyclists, pedestrians, or railway crossings depending on its symbol and position. Always match the signal to your lane and road-user type, then proceed only when the signal permits it and the way ahead is clear.
4 Aspect Traffic Signal with Green Left Turn controls a specific traffic movement, crossing, lane, vehicle type, or signal sequence. Drivers must obey the aspect that applies to them and wait when the signal does not permit movement.
Get clear, practical answers to the most common questions about the RTS-003 - 4 Aspect Traffic Signal with Green Left Turn road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Irish driving theory exam in Ireland.
The RTS-003 sign indicates a traffic signal that has at least four aspects, and importantly, includes a specific green signal, often displayed as an arrow, allowing vehicles intending to turn left to proceed. It's crucial to observe the signal aspect relevant to your lane and intended movement.
Yes, you can turn left when you see a green left turn arrow, provided you are in the correct lane for that turn and the way ahead is clear of pedestrians and other vehicles. However, you must still be aware of oncoming traffic if you are turning across their path and yield if necessary, unless the arrow indicates a fully protected turn.
If you are proceeding straight ahead or turning right, you must obey the main traffic signal aspects that apply to your lane. Do not assume the green left arrow applies to you. Wait for the signal that permits your intended movement, and never proceed against a red signal.
In Ireland, like elsewhere, these signals are designed to manage traffic flow efficiently and safely. Pay close attention to any filter arrows, bus signals, or cycle signals that might be displayed alongside the main signal head, as they can have different rules. Always match the signal to your specific road user type and lane.
A common trap is assuming that any green signal means immediate, unimpeded movement. Learners sometimes forget to check if the way is clear or fail to identify the specific aspect that applies to their lane. Another mistake is not understanding that a green arrow usually permits movement, but 'clear ahead' and yielding to pedestrians or priority vehicles are still essential.
A clear reference image of the RTS-003 - 4 Aspect Traffic Signal with Green Left Turn road sign used in Ireland.

The RTS-003 - 4 Aspect Traffic Signal with Green Left Turn road sign may also be known by these alternative names or terms.
The RTS-003 - 4 Aspect Traffic Signal with Green Left Turn road sign is part of the Traffic Signals category, which groups together signs with similar rules and functions.
By reviewing similar road signs, you can better distinguish between them and reduce confusion during your Driver Theory Test revision. Comparing traffic signs helps cement your understanding of Irish road rules and improves sign recognition for safe driving.

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Obey the 3 Aspect Pedestrian Signal (RPC-004) to safely navigate junctions and crossings.

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Obey the Green Go Straight 3 Aspect Traffic Signal for safe passage.

Understand the 3 Aspect Bus Traffic Signal (RTS-002) and what it means for your driving.

Understand the 3 Aspect U-Turn Traffic Signal for Safe Driving in Ireland
After reviewing all Irish road signs, strengthen your knowledge further by exploring specific categories or taking dedicated practice questions. This targeted approach helps solidify your recognition and recall skills, ensuring you are fully prepared for the visual sections of your Driver Theory Test.
All Irish Road Signs List