In which situations must you drive in the far-right lane or a lane marked for slower vehicles?

• A. Tow a vehicle or trailer
• B. Drive a bus
• C. Drive a truck with three or more axles
• D. All of the above

Answer: (D)

Slower-moving or space-demanding vehicles should stay in the far-right lane (or in a lane designated for slower traffic) so faster drivers have room to pass safely without weaving through slower vehicles. When you’re towing a trailer, your vehicle’s speed, handling, and stopping distance are reduced, so driving in the right lane helps prevent bottlenecks and makes passing safer for others. Buses carry many passengers and often accelerate slowly, requiring extra space; keeping to the right helps traffic flow and reduces hazards for everyone on the road. A truck with three or more axles is heavy and climbs and brakes more slowly, so it belongs in the right lane to avoid impeding faster traffic and to give it room for safe maneuvers. Because these situations involve slower speeds or greater space needs, they all require driving in the far-right lane or a lane marked for slower vehicles.