If your car gets stuck on US railroad tracks, the small blue-and-white sign nearby can tell the railroad exactly where you are before the next train arrives
Emergency notification system signs at railroad crossings are essential for assisting drivers in emergency situations. These signs display a unique crossing identification number, allowing dispatchers to quickly pinpoint the location of incidents....

Emergency Notification System (ENS) signs display the railroad’s emergency contact number and the crossing’s unique U.S. Department of Transportation identification number (Image credit: Wikimedia Commons)
The crossing identification number uniquely identifies each public railroad crossing, allowing dispatchers to locate it quickly. It also serves as a specific identifier that functions uniquely and is indicative of any railway crossing across the country. This makes the dispatcher’s work easy since instead of getting an address from the caller, the dispatcher can just take down the crossing number and trace the passing trains immediately.
Every small sign matters

What to do if your vehicle gets stuck
Railroad safety professionals highlight the importance of putting human safety first over leaving a vehicle in danger. So, if a car is stuck on the railway line, it is highly advisable to exit the car without delay, as well as stay far away from the railway line itself, for safety reasons. Once everyone is in a safe location, it is crucial to contact the emergency number on the Emergency Notification System signs and communicate the crossing identification number to the railroad dispatcher. The dispatcher utilizes this information to ascertain the emergency location and forward notifications to trains approaching the crossing point. Drivers may also contact emergency services if needed. According to the FRA, road users should refrain from trying to outrun a train or remaining inside the vehicle when it breaks down.
Why location matters so much
Dispatchers cannot rely on phrases like “close to the station” or “beside the highway” to locate the specific crossing. For instance, freight trains take over a mile to come to a complete stop depending on their weight and speed, which means that it is crucial to give an accurate description of the location to the railroad as soon as possible. Thus, the unique crossing ID serves as an accurate identifier used in the national inventory of crossings. Once the ID has been stated, dispatchers are aware of the exact crossing concerned, enabling them to inform train crews operating in that location.
Designed for emergencies, not everyday use
Emergency Notification System signs are included in the federal safety programme designed to enhance communications between the public and railroads in cases of emergency. According to the FRA, callers should provide the crossing identification number and describe the nature of the emergency so the railroad can respond appropriately.
ENS signs may be small, but they offer information unavailable on regular navigation apps or roadside signs. During times of emergencies, they act as the direct link to the railway responsible for the selected location. Most vehicles cross railroads without any incidents, and most of the drivers will never make use of the ENS sign. It is important to point out that knowing its purpose in advance might be extremely important. By calling the number printed on the blue-and-white sign with a given rail crossing identification, it allows the dispatchers to locate the crossing instantly and to inform the trains that are already approaching, enabling them to avert the accident.
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