What is the minimum distance a driver must stop from a railroad grade crossing?

The minimum stopping distance from a railroad grade crossing is specifically defined to ensure safety for both the driver and any approaching trains. The requirement to stop at least 15 feet away from the railroad tracks allows adequate space for the vehicle to clear the tracks and for the driver to have a clear view of any oncoming trains. Stopping at this distance also provides a safety buffer, as it reduces the risk of the vehicle being struck by a train if it were to suddenly appear.

The additional requirement to stop no closer than 50 feet from the nearest rail when a train is approaching is equally important. This extended distance ensures that drivers can take appropriate action in the event that a train is nearing the crossing, allowing them time to react and avoid a potentially disastrous collision.

In contrast, the other answer choices do not meet the safety standards established for stopping distances at railroad grade crossings, which are designed to maximize safety and reduce the likelihood of accidents involving trains and vehicles.