How long does it take a typical tractor-trailer to clear a double railroad track?

A typical tractor-trailer takes more than 15 seconds to clear a double railroad track due to the overall length and size of the vehicle. Tractor-trailers are significantly longer and heavier than standard vehicles, often measuring up to 70 feet from end to end. When crossing double railroad tracks, it's important for drivers to account for not just the time it takes to physically pass over the tracks but also the need to accelerate and potentially slow down when approaching or clearing the tracks safely.

Moreover, safety regulations emphasize the importance of clearing railroad tracks promptly to avoid any potential accidents with trains. Therefore, understanding the time needed for a tractor-trailer to fully cross double railroad tracks is crucial for ensuring that sufficient time and distance are maintained to prevent collisions, making "more than 15 seconds" the most accurate assessment for this scenario.