Warning Signs

Warns drivers that two separate lanes moving in the same direction are merging into one. Drivers in the right lane must adjust speed and merge smoothly with existing traffic.

Warns that a one-way street or divided highway is ending, and you are entering a roadway with oncoming traffic in the opposing lane. Stay to the right.

The roadway becomes particularly slippery during wet or rainy conditions. Reduce your speed, increase following distance, and avoid abrupt braking or steering.

Warns of a traffic signal ahead that may not yet be visible due to a curve or hill. Be prepared to slow down and stop if the light changes.

Indicates a series of three or more consecutive sharp turns or curves ahead. Reduce speed and maintain lane control.

Alerts drivers to a major crossroads intersection ahead. Watch for vehicles entering or crossing the roadway.

Object marker used to mark obstacles or bridge abutments near the edge of the road to alert drivers at night.

Warns of an extremely sharp 180-degree curve ahead. Decelerate significantly before entering the turn.

Recommended safe maximum driving speed in ideal conditions for an upcoming curve, ramp, or hazardous stretch of road.

Another road crosses the highway ahead. Look left and right for crossing or entering vehicles.

Four-way intersection ahead. Be prepared to yield right-of-way according to traffic control devices.

A sharp curve is ahead with a recommended safe speed plate. Slow down before entering the curve to prevent vehicle rollover.

A side road enters the highway from the right or left. Watch for traffic turning onto or crossing your lane.

The road splits into a Y configuration ahead. Bear left or right depending on your destination and yield where marked.

A signalized intersection is ahead. Prepare to stop if the light turns yellow or red.

Warns of two consecutive curves in opposite directions (e.g., curves right then left). Slow down to maintain control.

A steep downhill grade is ahead. Trucks and heavy vehicles should downshift to a lower gear to prevent brake overheating.

Warns of a circular exit or interchange ramp looping 270 degrees. Slow down significantly to the posted advisory speed.

The roadway ahead is narrowing or a lane is ending. Merge smoothly into the continuing lane.

Yellow diamond-shaped signs always convey warnings about road hazards, changes in conditions, or upcoming requirements.

The road curves gradually to the right ahead. Reduce speed before entering the curve.

The bridge ahead has narrower lanes or shoulders than the preceding road. Use caution when meeting oncoming vehicles.

Indicates the maximum bridge or underpass vertical clearance. Vehicles taller than the posted height must not proceed.

The road ahead is divided by a median strip or physical barrier into two separate one-way roadways. Keep to the right of the divider.

Paved road surface ends and transitions to gravel, dirt, or unpaved roadway. Reduce speed and prepare for reduced traction.

The median divider ends ahead, and you are returning to a two-way, two-lane undivided roadway. Watch for oncoming traffic on your left.

The road makes a sharp 90-degree right turn ahead. Slow down considerably before entering the turn.

Wildlife and deer frequently cross in this area, especially at dawn and dusk. Scan the roadside and be prepared to brake safely.

Warns of an upcoming STOP sign that may not be immediately visible. Begin slowing down to prepare for a complete stop.

Warns of an upcoming YIELD sign. Prepare to slow down and check for cross traffic before proceeding.

Standard yellow warning sign outline used across the US for all caution, hazard, and roadway change notifications.

Posted on the far side of a sharp curve or T-intersection to indicate a sharp change in direction of travel.

The bridge width allows only one vehicle to cross at a time. The vehicle reaching the bridge first has right-of-way; opposing traffic must wait.

Indicates that traffic is permitted to pass on either the left or the right side of an island, median, or obstruction.

Reflective orange triangle displayed on vehicles traveling at 25 MPH or slower (such as farm tractors or construction machinery). Approach with caution and pass safely.

A circular intersection is ahead. Vehicles inside the roundabout have right-of-way; entering traffic must yield to traffic approaching from the left.

The roadway ends ahead at a T-junction. You must turn either left or right after yielding right-of-way to traffic on the cross street.

Yellow triangular pennant sign posted on the left side of the road marking the beginning of a no-passing zone.

The unpaved shoulder of the road is significantly lower than the paved travel lane. Maintain a firm grip on the steering wheel if tires drift off.

Choose your lane before entering a multi-lane roundabout: right lane for right turns/straight, left lane for straight/left turns/U-turns.

The shoulder is soft dirt or gravel and may not support vehicle weight. Do not drive on the shoulder unless in an emergency.

A low point or depression in the roadway is ahead. Slow down to prevent vehicle undercarriage scraping or loss of control.

Recommends maximum safe speed for an upcoming highway curve or connector ramp.

Sharp curve alignment marker guiding motorists through sharp turns at night or in low visibility.

The roadway makes a sharp curve to the left ahead. Reduce speed before entering.

Indicates you are approaching a crossing or T-intersection on a divided multi-lane highway.