What does a Railroad Advance Warning sign mean? A Railroad Crossing sign warns drivers that a railroad crossing is ahead. The "RXR" sign is posted before a railroad crossing, while pavement markings may be painted prior to a crossing, before the stop line. When approaching a railroad crossing, look in both directions and listen for trains. Slow down and be prepared, if necessary, to stop so as.. RAILROAD CROSSING AHEAD sign and other warning traffic signs! Everything you need to know about the "railroad crossing ahead" sign! FREE road signs practice test included!
Advance warning signs The advance warning sign is a round, yellow sign bearing the lettering RXR. The "X" is very large, covering the full diameter of the sign. It is usually the first warning you will see that you are approaching a railroad crossing. Slow down, look and listen for an approaching train.. The railroad crossing sign is a warning sign. Railroad crossing signs are designed to alert drivers of railroad tracks ahead. Drivers must be aware of any approaching trains from both directions and be prepared to stop, if necessary. This sign is a passive sign, compared to an active sign, such as the traffic control devices or lights at the train crossing. Trains may pass through any time of.