Understanding Lane Changes in Turkish Traffic Law\n\nAccording to the Turkish Highway Traffic Regulation managed by the General Directorate of Highways (KGM), a lane change (known locally as Şerit değiştirme) is defined as moving a vehicle from one designated lane to another on a multi-lane roadway. This is not merely a physical steering action; it is a legally regulated transition. Under Turkish law, drivers are required to maintain their lane of travel unless they have a valid reason to change, such as overtaking, turning, or responding to an obstruction. \n\nFurthermore, continuous or unnecessary lane changing, weaving through traffic (popularly called 'makas atmak'), or occupying the left lane continuously are severe traffic violations that carry heavy administrative fines and penalty points on your Turkish driving licence (ehliyet).\n\n## The Step-by-Step Procedure: The MSM Method\n\nTo change lanes safely and pass both your driving theory exam (e-sınav) and practical driving test, you must execute a specific sequence of actions known as the MSM method:\n\n1. Mirrors (Observation): Check your rear-view mirror and the side mirror of the direction you intend to move. Assess the speed and distance of vehicles behind you. \n2. Signal (Communication): Activate your turn signal in advance. Under Turkish traffic laws, you must signal your intention early enough to warn surrounding traffic before starting any steering movement.\n3. Manoeuvre (Execution): Verify your blind spot with a quick over-the-shoulder look (omuz üstü bakış), ensure there is an adequate safety gap, and smoothly steer into the target lane while maintaining a consistent speed. Deactivate your indicator once the manoeuvre is complete.\n\n## Critical MEB Practical Exam Standards for Lane Changing\n\nThe Ministry of National Education (MEB) driving test evaluators use a strict assessment rubric during the practical exam. Improper lane changing is one of the most common reasons candidates fail. The evaluation guide classifies mistakes into color-coded categories:\n\n* Failing to check mirrors before changing lanes: This is classified as a RED (Kırmızı) mistake. It results in an immediate fail, and you must stop the exam.\n* Failing to signal in time: This is also a RED (Kırmızı) mistake. It results in immediate failure.\n* Failing to perform a blind-spot check (omuz üstü bakış): This is marked as a YELLOW (Sarı) mistake. Two yellow mistakes in total during your test will lead to failure.\n* Disregarding road lines (solid vs. broken): Crossing a solid line is a YELLOW (Sarı) mistake.\n* Failing to maintain lane discipline (weaving): This is a RED (Kırmızı) mistake that leads to an instant fail.\n\n## Road Markings and Their Meaning\n\nYour decision to change lanes must always align with road markings: \n\n* Broken White Lines: You are permitted to cross these lines to change lanes, turn, or overtake when it is safe to do so.\n* Solid White Lines: Crossing a solid line is strictly prohibited. These lines are placed near pedestrian crossings, intersections, tunnels, bridge entrances, and blind curves where changing lanes poses an extreme hazard. Entering an intersection in the wrong lane and then trying to change across a solid line is a major traffic violation.