RTR 116. U-turns are prohibited: 116.1 on pedestrian crossings; 116.2 on level crossings; 116.3 in tunnels; 116.4 on and beneath bridges, overpasses and viaducts; 116.5 where visibility in at least one direction is less than 100 metres; 116.6 on roads with a central reservation, except at locations designated and marked for U-turns by road signs and/or road markings. JB

Outside built-up areas, a driver may warn others when overtaking by flashing the high or low beams (provided this does not dazzle other road users) or by sounding the horn. Within built-up areas, flashing the lights is permitted if it does not dazzle others; sounding the horn is prohibited except when necessary to avoid a traffic accident. RTR — 89.

Drivers and all passengers must wear seat belts in vehicles that are equipped with them. In buses fitted with seat belts, a "Fasten Your Seat Belt" notice must be displayed in a clearly visible location in front of each seat, on the seat, or adjacent to it. It is recommended that all bus passengers be informed of the seat belt requirement — either verbally or by audiovisual means — before the journey begins.

On roads with four or more lanes, a double solid line separates opposing traffic flows. It prohibits driving in lanes that carry traffic in the opposite direction on the marked section; vehicles must not cross this line.

A central reservation is not part of the carriageway. A carriageway is the portion of a road intended for vehicular traffic.

Causes of premature clutch wear include an improperly adjusted clutch release mechanism, loose clutch mounting screws, weakened clutch springs, or a worn gearbox primary shaft.

The higher a vehicle's center of gravity (for example, when carrying tall loads or items on the roof), the greater the risk of rollover when cornering.

For safety, check the vehicles behind you before changing lanes so you don't force them to brake suddenly. Also monitor following traffic immediately before turning, since other drivers may change speed or perform unexpected manoeuvres.

The function of a vehicle suspension system is to convert bumps and shocks transmitted to the wheels, with the aid of shock absorbers, into minor oscillations of the vehicle body, providing comfort for driver and passengers. The suspension reduces body oscillations, and when functioning properly it enhances driving safety.

If the steering wheel gets very easy to turn, it means that the vehicle tyres lost their traction on a slippery road surface. In this case, you have to reduce your speed. You should do it slowly because an abrupt change of engine revolutions or braking on a slippery road surface may cause the vehicle to skid or slide. 

When vehicle speed increases, the layer of water on the road becomes deeper. Heavier rainfall also increases the water layer during driving. On roads with a transverse crown (where the carriageway is higher in the centre), the water layer is thinner because rainwater drains off the surface toward the edges more quickly. On asphalt, a tyre can displace only as much water as the volume available in its tread.

Traffic rules prohibit reversing only on motorways, expressways and in tunnels; otherwise reversing is allowed. U‑turns are prohibited here because they would require driving against the flow of traffic. RTR Annex 1, III — Restrictive signs: Road sign 332 'No stopping'. Vehicles must not stop or stand on the side of the road where this sign is placed, except for stopping at bus stops. The sign does not apply to vehicles displaying the distinguishing sign 'A person with a disability' or holding a parking card for people with disabilities. If the sign is used in combination with road marking 1.4, the prohibition applies until the end of that marking. RTR Annex 1, V — Special regulation signs: Road sign 503 'One-way traffic' — indicates a road or carriageway where vehicular traffic moves in one direction across the full width.

Drivers approaching a bend should be aware that the curve may be sharper than it appears. Therefore they must select a safe speed and adopt an appropriate position on the road to avoid entering the oncoming traffic lane. A safe speed depends on all circumstances: weather conditions, the technical condition of the road and the vehicle, the vehicle's load, the driver's experience and physical condition. RTR 127. Drivers must not exceed the permitted speed limit. When choosing a driving speed, drivers should consider the driving conditions — in particular the terrain — the condition of the road and the vehicle (including its load), weather conditions and traffic density so that they can stop safely before any foreseeable obstruction. Drivers must slow down or stop if circumstances require, especially when visibility is poor.

If the windows fog up (for example after washing the vehicle), the heating/ventilation setting may be incorrect.

A driving licence of categories B and BE entitles the holder to drive a passenger car (RTR 14). It is prohibited to operate a vehicle if you do not have the legal right to do so, or if you are under the influence of alcohol, narcotic drugs, psychotropic substances, or other psychoactive substances. A person who is fatigued or ill must not drive if driving could endanger road safety. A vehicle must not be entrusted to anyone who is under the influence of the aforementioned factors or who is not authorized to drive that type of vehicle. When operating a vehicle, the driver must comply with the restrictions and endorsements indicated on the driving licence.

If you discover that the horn is not working, you may drive only to a parking area or a repair facility. However, it is prohibited to operate a vehicle permanently if it does not meet the technical requirements (for example, if the horn, speedometer, or other required systems are not functioning). RTR 223. Vehicles traveling on roads must comply with the technical requirements applicable in the Republic of Lithuania when undergoing mandatory technical inspection. RTR 224. Only motor vehicles and trailers that are in good repair, except in the cases provided for in these Rules, may participate in public traffic in the Republic of Lithuania. Short-term (one-day) participation in public traffic is allowed, pursuant to the prescribed procedure, for vehicles and trailers displaying temporary license plates whose registered owners (keepers) have obtained compulsory motor third-party liability insurance and have paid the applicable fees and taxes for the vehicle or road use. RTR 15. Driving vehicles that are not in proper condition and do not comply with technical requirements for vehicles is prohibited. Before starting to drive, the driver of a motor vehicle, tractor, or self-propelled vehicle must ensure that the vehicle is in good condition, that it carries a warning triangle, fire extinguisher, first aid kit, and any other items mandatory for that type of vehicle, and must monitor the vehicle's technical condition during the journey. If the vehicle breaks down while driving and therefore does not meet the technical requirements and cannot be repaired on site, the driver may proceed, taking all necessary precautions, to the nearest parking area or vehicle repair shop, except in the cases laid down in paragraph 234 of these Rules. JB

3.17 Choosing a safe distance: operate the vehicle so that: 3.17.3. the distance to other vehicles, whether moving or stationary, is safe relative to any parked vehicle — maintain sufficient clearance to prevent parked vehicles or other obstacles from causing interference. When the vehicle is parked in a parking space, the lateral clearance should permit opening the vehicle's doors.

Any load that projects laterally, even slightly, must be marked. During hours of darkness such a load must be indicated by lights. Loads projecting beyond the sides of the vehicle must always be marked; loads projecting beyond the front or rear do not always require marking. According to RTR 210 and Annex 4: loads extending more than 1 m beyond the front or rear of the vehicle, or projecting laterally beyond the vehicle's outer edge, must be marked as specified in Annex 4.12. Extreme edges of loads that extend more than 1 m beyond the vehicle's dimensions, or that project even minimally to the side, as well as extreme edges of vehicles wider than 2.6 m, shall be marked with distinguishing panels — 400 mm square plates with alternating reflective white and red diagonal stripes 50 mm wide. These panels must be mounted between 0.4 m and 1.6 m above ground level. During hours of darkness or in poor visibility such vehicles must also display lights in the designated positions: white at the front, orange at the sides, and red at the rear.

RTR VIII. Requirements for Cyclists (paras. 55–66). 57. Bicycles may be ridden only on cycle tracks, footpaths, or cycle lanes; if none of these is available, bicycles may be ridden on an appropriate hard shoulder (with an asphalt or concrete surface). When a road has no cycle track or combined footpath-and-cycle track, and there is no cycle lane or hard shoulder on the right side — or if such facilities exist but are unsuitable for cycling (for example, are damaged) — cyclists may ride on the pavement (sidewalk) or in single file in the right-hand lane of the carriageway, keeping to the right edge of the lane, except in the cases specified in Paragraph 106 of these Rules, or when a cyclist needs to pass an obstruction or must continue straight ahead while only a right turn is allowed from the first lane. When riding on a hard shoulder, footpath, cycle track, or pavement, a cyclist must yield to pedestrians and must not create obstructions or hazards; when overtaking a pedestrian, the cyclist should travel at a speed close to walking speed (3–7 km/h) and leave sufficient lateral space so that passage is safe.

A cardan shaft is a mechanical component with a universal joint at one or both ends. It transmits torque and rotational motion. It is used for the following reasons: - To accommodate misalignment between shafts; - To allow changes in shaft position (for example, when driving over uneven terrain); - To transmit torque.

RTR 170. When yielding to an approaching rail vehicle, or whenever crossing a level crossing is prohibited, drivers must stop at the STOP line, the 'Stop' traffic sign, traffic lights, or barriers. If none of these are present, drivers must stop no nearer than 10 metres from the first rail. When a STOP line is used together with a 'Stop' sign, the driver must stop at the STOP line; if the STOP line is absent, stop at the 'Stop' sign even if a flashing white traffic light is displayed. JB

48. A trailer is a vehicle designed to be towed by a motor vehicle. Semi-trailers are also regarded as trailers. 52. A semi-trailer is a trailer coupled to a motor vehicle in such a way that part of its weight and the weight of its load are borne by the motor vehicle.

Even if another driver breaks the rules by overtaking or exceeding the speed limit, you must not endanger other road users — allow that driver to overtake you. 4. Road users shall follow the principle of mutual respect and safety.

RTR 77.1. When the traffic officer's arms are extended sideways or pointed downward: 77.1.1. Vehicles located to the officer's left and right may proceed straight ahead or turn right; pedestrians may cross the carriageway. 77.1.2. Vehicles and pedestrians positioned in front of or behind the officer must not proceed. JB

Note that a motorized bicycle must have at least two wheels and an auxiliary internal combustion engine or an electric motor — it is not sufficient for it to have only an internal combustion engine. SEAK Art. 2.40. "Motorized bicycle" — a vehicle with at least two wheels that is powered by the rider’s muscular force using pedals or handlebars and is equipped with an auxiliary internal combustion engine or electric motor with a maximum net power of no more than 1 kW and a maximum design speed of no more than 25 km/h. The auxiliary engine stops providing power when the vehicle reaches 25 km/h. Wheelchairs for persons with disabilities are not classified as motorized bicycles.

131. The following speed limits apply outside built-up areas: 131.2. Vehicles of categories A1, A2, A or B driven by novice drivers, persons learning to drive or taking a practical driving test, and buses (including school buses) are subject to the following maximum speeds: 100 km/h on motorways, 90 km/h on highways, 80 km/h on roads with asphalt or concrete pavement, and 70 km/h on other roads.

Passengers may be carried in a towed vehicle except when the vehicle is being towed with its front or rear supported on a towing platform or other support device. Regulation 195 states that drivers must not: 195.4. carry passengers inside a bus, trolleybus, or the body of a goods vehicle that is being towed; if the front or rear of a vehicle is resting on a support device, passengers must not be inside the vehicle or in its cargo body.

RTR 203. A driver must ensure that children transported in a motor vehicle use the appropriate installed and correctly fitted restraint systems. JB

The yellow vehicle goes first because it is the only one without a vehicle to its right obstructing its path. Next comes the green vehicle, and last is the red vehicle. RTR 155. At an uncontrolled intersection, drivers must yield to vehicles approaching from the right when their trajectories intersect.