What is Bus Rapid Transit (BRT)?\n\nBus Rapid Transit is a high-capacity, bus-based public transport system designed to deliver fast, comfortable, and cost-effective services at the level of a metro or light rail system. It achieves this through the use of dedicated lanes, busways, and priority signalling, allowing buses to bypass typical urban traffic congestion. In driving theory, understanding BRT is essential because these systems occupy significant portions of major arterial roads and interact with standard vehicle lanes at specific intersections and ramps.\n\n## The Turkish Context: The Metrobüs System\n\nIn Turkey, the most prominent example of Bus Rapid Transit is Istanbul's Metrobüs, which runs along the heavily congested D-100 highway. Unlike standard bus lanes, the Metrobüs operates on a physically separated corridor, often situated in the median of the highway. Because Metrobüs vehicles run continuously and at high speeds—sometimes in a reverse-traffic flow configuration—any unauthorized intrusion by private vehicles is extremely dangerous. Turkish driving theory exams (MTSK e-sınavı) frequently test candidate awareness regarding these restricted transport corridors to prevent unauthorized lane use and maintain public transit flow.\n\n## Driving Rules and Lane Restrictions\n\nPrivate vehicles are strictly prohibited from entering, driving, or stopping inside a Bus Rapid Transit lane at any time. Because BRT corridors are physically separated, entering them usually requires passing through unauthorized maintenance ramps or emergency access points, which constitutes a severe traffic violation. If you enter a dedicated transit lane, you face heavy administrative fines, vehicle impoundment, and penalty points on your driving license (ehliyet). At intersections where BRT paths cross regular lanes, public transit buses always maintain the absolute right of way, which is heavily enforced by traffic cameras and automated toll systems.\n\n## Safe Driving Around BRT Infrastructure\n\nWhen driving on highways alongside a BRT system, always pay close attention to warning signs and directional arrows. Avoid abrupt lane changes near BRT entry and exit ramps, as authorized emergency vehicles or maintenance crews may enter or exit the transit corridor unexpectedly. Additionally, when driving at night, ensure you do not get confused by the high-intensity headlights of transit buses travelling in adjacent, dedicated lanes, especially when they run counter to your direction of travel. Maintaining situational awareness and keeping a safe lateral distance from the physical barriers separating you from the BRT corridor are vital safety habits.