NC Road Signs Practice study materials
NC Road Signs Practice study resources

NC Road Signs Practice key terms

NC Road Signs Practice · Get comfortable with the vocabulary.

Regulatory sign

A sign that gives a traffic law, requirement, or prohibition drivers must obey, such as stop, yield, speed limit, or turn restrictions. Usually rectangular with a white background and black or red legend.

Related: Speed limit sign, Yield sign, Stop sign
Stop sign

An eight-sided red sign with a white border and the word STOP. A driver must come to a complete stop at the stop line or crosswalk, yield to traffic and pedestrians, then proceed only when safe.

Related: All-way stop, Stop line, Yield sign
All-way stop

An intersection where every approach has a stop sign. Vehicles stop completely, then proceed in the order they arrived; if two arrive together, the vehicle on the right goes first.

Related: Stop sign, Right-of-way
Yield sign

A downward-pointing triangle with a red border and white center. Drivers must slow down and give the right-of-way to traffic on the intersecting road and to pedestrians before entering or crossing.

Related: Stop sign, Right-of-way, Merge sign
Speed limit sign

A white rectangle with black numerals stating the maximum lawful speed in miles per hour under normal conditions. Driving faster is illegal even if road or weather conditions seem safe.

Related: Advisory speed plaque, Regulatory sign
Advisory speed plaque

A yellow rectangular plaque, often mounted below a warning sign, showing a recommended maximum speed for a curve, ramp, or hazard. It is a suggestion for safe conditions, not an enforceable posted limit.

Related: Speed limit sign, Chevron alignment sign
Do Not Enter sign

A square red sign with a white horizontal bar and the words DO NOT ENTER. It marks a roadway, ramp, or lane where traffic may not proceed in that direction, often the exit of a one-way street.

Related: Wrong Way sign, One-way sign
Wrong Way sign

A red rectangular sign with the words WRONG WAY, placed to warn drivers who are entering a one-way road or ramp against traffic. A driver seeing it should stop and turn around immediately.

Related: Do Not Enter sign, One-way sign
One-way sign

A black horizontal arrow on a white rectangle indicating that traffic on that roadway moves only in the direction shown. It is often paired with Do Not Enter signs at the far end.

Related: Do Not Enter sign, Wrong Way sign
No-passing zone sign

A regulatory sign, often yellow with a black symbol, marking where passing another vehicle is prohibited, typically because of limited sight distance, a hill, or a curve. It is reinforced by pavement markings.

Related: No-passing zone markings, Warning sign
Warning sign

A yellow diamond-shaped sign that alerts drivers to a change in road conditions, such as a curve, hill, intersection, or narrowing lane. Drivers should slow down and be prepared to react.

Related: Advisory speed plaque, Chevron alignment sign, Object marker
Chevron alignment sign

A large yellow rectangular sign bearing a black chevron arrow, placed on the outside of a sharp curve to guide drivers through the turn. Several are usually mounted in a series.

Related: Advisory speed plaque, Warning sign
Merge sign

A yellow diamond sign showing two arrows joining into one, warning that traffic from another lane or ramp will merge into the driver's lane. Drivers should adjust speed and allow space.

Related: Yield sign, Lane reduction sign
Lane reduction sign

A yellow diamond sign showing a lane ending, warning that the number of through lanes decreases ahead. Drivers in the ending lane must merge safely into the continuing lane.

Related: Merge sign, Warning sign
Object marker

A small sign with diagonal black and yellow stripes used to mark a fixed object near the roadway, such as a bridge pier or sign support, so drivers can see and avoid it.

Related: Warning sign, Delineator
Delineator

A thin reflective post or panel placed along the roadside to outline the edge of the road or a curve, especially in fog, snow, or darkness. It is not a regulatory device and does not require a stop.

Related: Object marker, Guide sign
Guide sign

A sign that provides direction, distance, destination, or service information rather than a rule or warning. Guide signs are typically green, blue, or brown and help drivers navigate.

Related: Interstate route marker, Delineator
Interstate route marker

A red, white, and blue shield sign that identifies an Interstate highway and its route number. Even-numbered routes generally run east-west and odd-numbered routes generally run north-south.

Related: Guide sign, Mile marker
Mile marker

A small green sign showing the distance in miles from a reference point along a highway. Drivers can use it to report their location in an emergency or to confirm progress on a trip.

Related: Guide sign, Interstate route marker
Construction sign

An orange diamond-shaped sign warning of road work, workers, or changed conditions in a work zone. Drivers should slow down, increase following distance, and obey flaggers and temporary signals.

Related: Flagger, Work zone, Channelizing device
Work zone

An area of roadway where construction, maintenance, or utility work is occurring. Speed limits may be reduced and lanes shifted, and fines for moving violations are often doubled when workers are present.

Related: Construction sign, Flagger
Flagger

A trained worker who uses a sign or hand signals to control traffic through a work zone. Drivers must obey the flagger's directions, which may override normal signs and signals.

Related: Construction sign, Work zone
Channelizing device

A cone, drum, or barricade used to guide traffic around or away from a work area. Drivers must not cross these devices or drive into closed lanes.

Related: Construction sign, Work zone
School zone sign

A fluorescent yellow-green diamond sign marking the approach to a school area. Drivers should slow down and watch for children, crossing guards, and reduced school speed limits during posted hours.

Related: School speed limit sign, Crossing guard
School speed limit sign

A sign posting a reduced speed limit that applies during specified school hours or when children are present. Drivers must obey it at those times even if no children are visible.

Related: School zone sign, Speed limit sign
Crossing guard

An adult who stops traffic so students can cross safely near a school. Drivers must stop when the guard displays a stop paddle or enters the roadway and must not proceed until the crossing is clear.

Related: School zone sign, Crosswalk
Crosswalk

A marked or unmarked portion of roadway where pedestrians cross. Drivers must yield to pedestrians in a crosswalk and must not pass a vehicle stopped at one.

Related: Crossing guard, Pedestrian signal
Pedestrian signal

A signal head showing a walking person or a raised hand that controls pedestrian crossings at an intersection. A flashing hand means do not start crossing; a steady hand means do not cross.

Related: Crosswalk, School zone sign
Railroad crossbuck sign

A white X-shaped sign with the words RAILROAD CROSSING, placed at a railroad grade crossing. Drivers must yield to trains and may need to stop, look, and listen before crossing.

Related: Railroad advance warning sign, Flashing red signal
Railroad advance warning sign

A yellow round sign with a black X and two R letters, placed before a railroad crossing. It warns drivers to slow down, look, and listen for an approaching train.

Related: Railroad crossbuck sign, Flashing red signal
Flashing red signal

A signal at a railroad crossing or drawbridge that flashes red when a train or opening is approaching. Drivers must stop and remain stopped until the signal stops flashing and the way is clear.

Related: Railroad crossbuck sign, Railroad advance warning sign
Sign color: red

Red on a sign means stop, yield, or prohibition, as on stop signs, yield signs, and Do Not Enter signs. It is reserved for the most important regulatory messages.

Related: Sign color: yellow, Stop sign
Sign color: yellow

Yellow marks warning signs, alerting drivers to hazards or changed conditions ahead. It tells drivers to slow down and pay attention but does not itself impose a legal requirement.

Related: Warning sign, Sign color: orange
Sign color: orange

Orange identifies construction and maintenance signs and work zone devices. Seeing orange tells drivers that workers, equipment, or altered lanes may be present ahead.

Related: Construction sign, Work zone
Sign color: fluorescent yellow-green

This bright color marks school zones, pedestrian crossings, and bicycle warnings, drawing extra attention to people who may enter the roadway. It supplements the standard yellow warning color.

Related: School zone sign, Crosswalk
Sign shape: octagon

The eight-sided shape is used only for stop signs, so drivers can recognize a stop from the shape alone, even when the sign is dirty, damaged, or viewed from behind.

Related: Stop sign, Sign shape: triangle
Sign shape: triangle

The downward-pointing triangle is used only for yield signs. Its unique shape lets drivers identify a yield requirement even before they can read the words.

Related: Yield sign, Sign shape: octagon
Right-of-way

The legal priority to proceed through an intersection or crossing before others. Signs such as stop and yield determine who must wait, and failing to yield when required is a common cause of crashes.

Related: Yield sign, All-way stop
Stop line

A solid white pavement line marking where vehicles must stop at a stop sign or signal. If no stop line exists, drivers stop before the crosswalk, or before the intersection if there is no crosswalk.

Related: Stop sign, Crosswalk
No-passing zone markings

Pavement markings, usually a solid yellow line on the driver's side, showing where passing is prohibited. A solid yellow line means do not cross to pass; a broken yellow line permits passing when safe.

Related: No-passing zone sign, Sign color: yellow