What is the maximum distance you can stop away from railroad crossings?

The maximum distance at which you must stop from railroad crossings is 15 to 50 feet. The correct answer reflects the requirement to ensure that a driver is far enough away from the tracks to safely observe oncoming trains while also maintaining a safe distance in case a train is approaching. Stopping no closer than 15 feet allows for adequate space to see and react to any train movements. This distance also aids in preventing accidents, as it ensures that the vehicle is positioned safely away from the danger zone.

While other distances such as 25 feet, 75 feet, and 100 feet are indeed important for various driving scenarios, they do not align with the specific requirement for stopping at railroad crossings, making them less relevant in this context.