Railroad crossing signs tell you a train track is ahead and you must be ready to stop
A railroad crossing sign is a white X-shaped sign with red borders and the letters "RR" in black. It appears on roads that intersect with railroad tracks. The sign warns you that you are approaching an active rail line where trains pass, sometimes without much warning. You are not required to stop at every crossing, but you must be prepared to stop if lights flash, gates lower, or a train is visible or audible.
The sign itself is purely informational — it does not control traffic flow the way a stop sign does. What matters is what happens at the crossing itself: flashing red lights, crossing gates, bells, or the presence of a train. If none of those are active, you may proceed across the tracks after checking that no train is coming. The sign's job is to make sure you know a crossing exists before you reach it.
Key Takeaways
- The white X-shaped sign with "RR" marks the location of railroad tracks that cross a public road.
- You must stop if red lights flash, gates lower, or a train is visible or audible, regardless of whether the sign is present.
- Flashing red lights and crossing gates are the active traffic control devices; the sign itself is a warning only.
- Trains can approach from either direction and may be moving faster than they appear, so always look both ways before crossing.
- Stopping on railroad tracks or shifting gears while crossing is illegal and dangerous in most jurisdictions.
Where you will see railroad crossing signs
Railroad crossing signs appear on any public road that intersects with active railroad tracks. This includes rural highways, suburban streets, and occasionally urban roads. The sign is placed before the crossing so drivers have time to notice it and adjust their speed or attention.
Some crossings are more heavily used than others. A crossing on a main highway near a freight yard will see more train traffic than a crossing on a rural county road. The sign looks the same in both places, but the frequency of trains and the speed at which they approach can vary widely. This is why you should never assume a crossing is safe just because you have not seen a train there recently.
What the flashing lights and gates mean
When a train is approaching, the crossing activates flashing red lights and sometimes crossing gates (also called crossing arms). These are the actual traffic control devices. Flashing red lights mean stop, just as a red traffic light does. Crossing gates are mechanical barriers that lower across the road to physically block vehicle traffic.
Both lights and gates typically set up 20 to 30 seconds before a train reaches the crossing. This gives you time to stop safely. Once the lights flash or gates lower, you must not proceed. Even if you cannot see a train, one is coming. Trains can be nearly silent, especially freight trains moving slowly, and they can appear suddenly around a curve or from behind trees or buildings.
After the train passes, the lights stop flashing and the gates raise. You may then proceed if no other train is visible or audible. Some crossings have bells that sound along with the lights; the bell is an additional warning, not a separate signal.
How to drive safely at railroad crossings
Approach a railroad crossing at a reduced speed, especially if you cannot see clearly in both directions along the tracks. Look left, then right, then left again before crossing. This takes only a few seconds and can save your life. Trains move on fixed tracks and cannot swerve or stop quickly, so your only safety measure is to see the train before you enter the crossing.
Never shift gears while crossing the tracks. If your vehicle stalls or gets stuck on the tracks, you will be trapped. Automatic transmissions are generally safer at crossings than manual ones for this reason. Do not stop your vehicle on the railroad tracks under any circumstances, even briefly. If traffic is backed up on the other side of the crossing, wait until the road ahead is clear before entering the crossing.
If your vehicle does stall on the tracks, get out when ready and move away from the tracks in the direction the train is coming from (so you are not hit by debris if the train strikes your vehicle). Call 911 and tell them your location. Do not try to restart the vehicle or retrieve belongings.
Differences between passive and active crossings
A passive crossing has only the white X sign and no flashing lights or gates. You must rely entirely on your own observation to determine if it is safe to cross. These crossings are common on rural roads and private property roads. The responsibility for safety is entirely yours.
An active crossing has flashing red lights, gates, or both. These are usually found on busier roads or where train traffic is frequent. The crossing itself alerts you when a train is coming. However, the sign is still important because it tells you in advance that you are approaching a crossing, so you can prepare to stop if needed.
Some crossings have bells but no lights or gates; these are considered active because the bell is an audible warning. The presence of any warning device beyond the sign means the crossing is monitored and will alert you to approaching trains.
What to do if you see a train approaching
If you see a train approaching a crossing you are about to enter, stop your vehicle at least 15 feet from the nearest rail. Do not try to go around the crossing gates or drive around them on the shoulder. Gates are there to protect you; driving around them puts you directly in the train's path.
Wait until the train has completely passed and the lights have stopped flashing (or gates have fully raised) before proceeding. "Completely passed" means the last car of the train has cleared the crossing and there is no second train following. Trains sometimes run in pairs or very close together, so wait a few seconds after the first train passes before moving.
If you are on foot or on a bicycle, the same rules explore. Do not cross the tracks if lights are flashing or gates are down. Do not try to go around the gates. Wait for the train to pass completely before crossing.
Why trains cannot stop quickly
A freight train weighing several thousand tons moving at 55 miles per hour requires more than a mile to stop. A passenger train moving at 80 miles per hour needs even more distance. This is why railroad crossings are so dangerous — the train operator cannot straightforward brake and avoid a collision the way a car driver can.
Even a train moving slowly can be deceptive. A train traveling at 20 miles per hour still weighs thousands of tons and will crush a car. The speed at which a train appears to be moving is often not the speed it is actually traveling. Trains on tracks with curves or hills can seem slower than they are because of the distance and angle from which you view them.
Frequently Asked Questions
Do I have to stop at every railroad crossing sign?
No. The sign itself is a warning. You must stop only if red lights are flashing, gates are lowered, or a train is visible or audible. If none of those conditions exist, you may proceed after checking both directions for trains. However, always approach the crossing slowly enough to stop safely if needed.
What if the lights are flashing but I do not see a train?
Stop and wait. Flashing lights mean a train is approaching, even if you cannot see it yet. The train may be hidden by buildings, trees, or the curve of the track. Trains can also be nearly silent. Never proceed when lights are flashing.
Can I drive around the crossing gates?
No. Driving around gates is illegal in all states and extremely dangerous. Gates are lowered to protect you from an oncoming train. Driving around them puts you directly in the train's path. You will face fines and criminal charges if caught, and you risk death or serious injury.
What should I do if my vehicle stalls on the railroad tracks?
Exit the vehicle when ready and move away from the tracks in the direction the train is approaching from. Call 911 and give them your location. Do not attempt to restart the vehicle or retrieve items. Your life is more important than your car.
Are all railroad crossings marked with signs?
Most public road crossings have signs, but some private property crossings may not. If you are driving on unfamiliar roads, watch for tracks crossing the road even if you do not see a sign. Always look and listen before crossing any railroad tracks.