What is a Two-Way Road (Vía de Doble Sentido)?\nA two-way road, or 'vía de doble sentido' in Spanish, refers to a roadway where traffic flows in two opposing directions. Unlike a one-way street, vehicles on a two-way road will encounter oncoming traffic, requiring drivers to maintain constant awareness and adhere to specific rules for safe navigation. These roads are extremely common in both urban and rural areas across Spain.\n\nEach direction of travel typically has at least one designated lane. The separation between directions can be marked by solid or broken lines, or sometimes a physical barrier. Understanding these markings and their implications is key for the Spanish driving theory exam, as they dictate when and where maneuvers like overtaking are permitted.\n\n## Driving Safely on Two-Way Roads in Spain\nSafety on two-way roads is paramount, especially given the presence of oncoming vehicles. Drivers must always be prepared to react to sudden changes in traffic conditions, such as vehicles turning, pedestrians crossing, or obstacles in the road. Maintaining a safe distance from the vehicle ahead provides sufficient time to react, and careful observation of road signs and markings is essential.\n\n* Lane Discipline: Always stay in your designated lane for your direction of travel. Do not drift into the lane of oncoming traffic unless performing a legal and safe overtaking maneuver where permitted.\n* Speed Limits: Adhere strictly to the posted speed limits, which can vary significantly between urban and rural two-way roads in Spain. Excessive speed reduces reaction time and increases accident severity.\n* Visibility: Ensure clear visibility, especially when approaching curves, crests, or intersections on two-way roads, as oncoming traffic may suddenly appear.\n\n## Overtaking and Turning on Two-Way Roads\nExecuting maneuvers on two-way roads requires careful judgment and strict adherence to Spanish traffic regulations. Overtaking is one of the most hazardous maneuvers and must only be attempted when there is ample clear space, perfect visibility, and no risk to oncoming traffic.\n\n* Overtaking: In Spain, overtaking on a two-way road is generally permitted only when the lane markings indicate it (e.g., a broken white line on your side). You must ensure you have enough time and space to complete the maneuver safely without impeding oncoming traffic or the vehicle you are overtaking. Never overtake on a solid line, near blind curves, or at intersections where visibility is limited.\n* Turning Left: When turning left on a two-way road, you must position your vehicle as close as possible to the central axis of the road without invading the opposite direction's lane. For two-wheeled cycles and mopeds on interurban two-way roads, if there is no specially conditioned lane, they must move to the right hard shoulder if possible to initiate the turn from there. Always yield to oncoming traffic before turning.