W10-1 is the circular highway-rail grade-crossing advance warning. R15-1 is the crossbuck at the crossing. A track-count plaque may accompany the crossbuck where applicable, while STOP, YIELD, signal, and other devices are used only under the provisions governing the crossing.
At a glance
| Device | Typical designation | Role |
|---|---|---|
| Advance warning | W10-1 | Warns that a highway-rail grade crossing is ahead |
| Crossbuck | R15-1 | Identifies the grade crossing at the tracks |
| Track-count plaque | R15-2P | Indicates multiple tracks where applicable |
| Pavement marking | Grade-crossing marking | Provides an additional roadway warning |
| Active control | Flashing lights or gates | Controls traffic when activated at equipped crossings |
Advance warning versus crossing identification
The round W10-1 appears in advance of the crossing. The crossbuck is installed at the crossing. Searching “train tracks sign” can return both, so the desired location and function must be identified.
A crossing can use multiple coordinated devices
Depending on the crossing, the overall system can include signs, pavement markings, flashing-light signals, gates, audible devices, and roadway traffic-control signals. The correct treatment is determined under the MUTCD’s grade-crossing provisions and applicable engineering evaluation.
Find related railroad signs
Search “railroad,” “railway,” “train tracks,” or a known W10/R15 code in the Sign Finder. Review the warning and regulatory results separately.
Frequently asked questions
What does the round railroad sign mean?
It is the W10-1 advance warning that a highway-rail grade crossing is ahead.
What is a railroad crossbuck?
The R15-1 crossbuck identifies a highway-rail grade crossing at the tracks.
Are the round railroad sign and crossbuck the same sign?
No. One is an advance warning and the other identifies the crossing location.