Traffic Control Signals

Traffic Control Signals

This page presents the official Lithuanian Road Traffic Rules (KET) on the topic of "traffic control signals", valid throughout the Republic of Lithuania under the 2026 rules. Understanding these provisions is essential for passing the theory exam at Regitra and for participating safely in traffic. Each provision below links to the official consolidated KET.

🎥 Video explanation

A short video explaining this topic. The video is in Lithuanian. Open the video page.

📚 Detailed rules

📌 KET 73.1

A green disk-shaped signal permits traffic in all directions (straight, right, left, U-turn).

📌 KET 73.2

A green arrow-shaped (or arrows-shaped) signal on a black background permits traffic in the direction(s) indicated by the arrow(s); a green arrow in a supplementary section of the traffic light has the same meaning; where a left turn is permitted, a U-turn is also permitted;

📌 KET 73.3

A flashing green signal permits traffic and informs that its time is ending and that the traffic light signals will soon change;

📌 KET 73.4

A green signal with a pedestrian symbol permits pedestrian movement;

📌 KET 73.5

A green signal with a bicycle symbol permits the movement of bicycles and electric micro-mobility vehicles;

📌 KET 73.6

A green signal with a black arrow (or arrows) permits traffic in the direction(s) indicated by the arrow(s); where a left turn is permitted, a U-turn is also permitted;

📌 KET 73.7

If the traffic light or controller signals prohibit driving through a pedestrian crossing, the driver must stop before the road sign "Stop line" and (or) the "Stop" line, the traffic light; where these are absent – before the pedestrian crossing. Drivers who could only stop at the indicated places by braking sharply when the yellow traffic light signal (or one in the form of a horizontal white bar) lights up or when the controller raises their hand are permitted to continue driving.

📌 KET 73.7

A driver who could only stop at the locations specified in paragraph 165 of the Rules by braking sharply when the yellow traffic light signal (or one in the form of a horizontal white bar) lights up or when the controller raises their hand is permitted to continue driving.

📌 KET 73.7

When a prohibitory traffic light or controller signal is on, the driver must stop before the road sign "Stop line" and (or) the "Stop" line; where these are absent – before the traffic light, the crossing or joining carriageway, the pedestrian crossing, or the bicycle crossing, so as not to obstruct vehicle and pedestrian traffic.

📌 KET 73.8

Yellow and red signals lit simultaneously prohibit traffic and inform that the green signal will soon come on;

📌 KET 73.9

A flashing yellow signal permits traffic and informs that the intersection or pedestrian crossing is unregulated;

📌 KET 73.10

A flashing white signal used at railway crossings permits traffic after making sure that no rail vehicle is approaching the railway crossing;

📌 KET 73.11

A red signal or two alternately flashing red signals prohibit traffic; if there is a black arrow (or arrows) on the signal, it prohibits traffic in the direction(s) indicated by the arrow(s) and informs of the direction(s) in which traffic will be permitted when the green arrow-shaped signal lights up;

📌 KET 73.12

A red signal with a pedestrian symbol prohibits pedestrian traffic;

📌 KET 73.13

A red signal with a bicycle symbol prohibits the traffic of bicycles and electric micro-mobility vehicles;

📌 KET 73.14

A red X-shaped signal and a green downward-pointing arrow signal (reversible traffic light) respectively prohibit or permit traffic in the lane above which they are installed; if the reversible traffic light shows a yellow signal in the shape of an arrow pointing diagonally to the right or left, it informs that traffic in that lane will be prohibited and obliges immediate lane change to the adjacent lane in the direction indicated by the arrow; when the traffic lights are off or the yellow signal is on, entering the lane marked with a double broken horizontal marking line is prohibited.

📌 KET 74

Traffic light signals are arranged vertically from top to bottom in the following order: red, yellow, green. If necessary, signals may also be arranged horizontally: red – on the left, yellow – in the middle, green – on the right (reversible traffic light). Road users must follow the signals of traffic lights installed in their direction of movement and addressed to them, as well as those of duplicating traffic lights.

📌 KET 76

If at an intersection a plate with a green arrow pointing to the right is attached next to the red traffic light signal, drivers are permitted to turn right even when a prohibitory traffic light signal is on; however, before entering the intersection, they must stop before the road sign "Stop line" and (or) the "Stop" line; where these are absent – before the pedestrian crossing, the traffic light, and may start driving again only after making sure that doing so is safe and will not obstruct other vehicles and pedestrians whose direction of movement they are crossing.

📌 KET 77

Controller signals have the following meanings:77.1. arms extended to the sides or lowered:77.1.1. from the right and left sides, driving straight ahead and to the right is permitted, and pedestrians are permitted to cross the carriageway;77.1.2. from the chest and back sides, the traffic of all vehicles and pedestrians is prohibited;77.2. right arm extended forward:77.2.1. from the left side, vehicles are permitted to drive in all directions;77.2.2. from the chest side, vehicles are permitted to drive only to the right;77.2.3. from the back side and the right side, the traffic of all vehicles is prohibited;77.2.4. pedestrians are permitted to cross the carriageway behind the controller;77.3. arm raised upward:77.3.1. all road users are prohibited from moving in any direction;77.3.2. drivers must stop without changing lanes.

📌 KET 78

The driver must stop the vehicle, and a pedestrian must stop, when an inspecting official or controller gives a signal – by waving the controller's baton or disk with a red reflector directed at the road user, or by ordering them to stop through a loudspeaker. The STOP signal may also be indicated on a display board installed in a vehicle marked with special colors and the corresponding service's mark. To attract the attention of road users, an inspecting official or controller may give a signal with a whistle. Upon receiving the signal to stop, the driver must immediately stop the vehicle at the indicated location; if no location is indicated – on the right road shoulder, and where there is no shoulder – at the right edge of the carriageway.

📌 KET 79

Traffic light signals may additionally be duplicated by audio signals informing blind pedestrians that the carriageway may be crossed.

📌 KET 80

At railway crossings, the red traffic light signal may be duplicated by an audio signal.

📌 KET 80.1

If the traffic light or controller signals prohibit driving through a pedestrian crossing, the driver must stop before the road sign "Stop line" and (or) the "Stop" line, the traffic light; where these are absent – before the pedestrian crossing. Drivers who could only stop at the indicated places by braking sharply when the yellow traffic light signal (or one in the form of a horizontal white bar) lights up or when the controller raises their hand are permitted to continue driving.

📌 KET 80.1

A driver who could only stop at the locations specified in paragraph 165 of the Rules by braking sharply when the yellow traffic light signal (or one in the form of a horizontal white bar) lights up or when the controller raises their hand is permitted to continue driving.

📌 KET 80.1

When a prohibitory traffic light or controller signal is on, the driver must stop before the road sign "Stop line" and (or) the "Stop" line; where these are absent – before the traffic light, the crossing or joining carriageway, the pedestrian crossing, or the bicycle crossing, so as not to obstruct vehicle and pedestrian traffic.

❓ Frequently asked questions

A green disk-shaped signal permits traffic in all directions (straight, right, left,…?
A green disk-shaped signal permits traffic in all directions (straight, right, left, U-turn).
A green arrow-shaped (or arrows-shaped) signal on a black background permits traffic in…?
A green arrow-shaped (or arrows-shaped) signal on a black background permits traffic in the direction(s) indicated by the arrow(s); a green arrow in a supplementary section of the traffic light has the same meaning; where a left turn is permitted, a U-turn is also permitted;
A flashing green signal permits traffic and informs that its time is ending and that the…?
A flashing green signal permits traffic and informs that its time is ending and that the traffic light signals will soon change;
A green signal with a pedestrian symbol permits pedestrian movement;?
A green signal with a pedestrian symbol permits pedestrian movement;
A green signal with a bicycle symbol permits the movement of bicycles and electric…?
A green signal with a bicycle symbol permits the movement of bicycles and electric micro-mobility vehicles;
A green signal with a black arrow (or arrows) permits traffic in the direction(s)…?
A green signal with a black arrow (or arrows) permits traffic in the direction(s) indicated by the arrow(s); where a left turn is permitted, a U-turn is also permitted;

📹 Watch the video lesson for this topic