What do white pavement markings at railroad crossings signify?

White pavement markings at railroad crossings are used to guide drivers about the distance to the crossing itself. Specifically, these markings indicate the area between 15 feet to 50 feet from the railroad tracks. This is crucial for maintaining safety, as they help ensure that drivers are aware of how close they are to the tracks when approaching a crossing, allowing them to stop if necessary and ensuring they have sufficient space to react to any approaching trains. Understanding this distance helps drivers make informed decisions and follow the correct protocols when navigating near railroad crossings, enhancing overall safety for both vehicles and trains.