Colorado Road Signs Practice study materials
Colorado Road Signs Practice study resources

Colorado Road Signs Practice flashcards

Colorado Road Signs Practice · Build recall with a focused review session.

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Octagon sign meaning
A red octagon with white letters is used only for STOP. You must come to a complete stop at the stop line, crosswalk, or edge of the intersection before proceeding when safe.
Inverted triangle sign
A red-and-white downward-pointing triangle is used only for YIELD. Slow down, be prepared to stop, and give the right of way to cross traffic and pedestrians before entering.
Yellow diamond sign
A yellow diamond with a black symbol or legend is a warning sign. It alerts you to a condition ahead and calls for reduced speed and increased attention, not a legal stop.
Orange work zone signs
Orange diamonds with black legends mark construction and maintenance areas. They are temporary traffic control devices, and their instructions override normal routing through the site.
Flagger paddle authority
A flagger holding a stop/slow paddle controls traffic in a work zone. Obey the paddle over conflicting signs or signals; a STOP paddle requires a full stop until waved on.
Four-way stop order
At a four-way stop, the first vehicle to arrive proceeds first. If two arrive together, the vehicle on the right goes first, and straight-through traffic has priority over left turns.
Interstate shield colors
The interstate route marker is a red, white, and blue shield. Even numbers generally run east-west, odd numbers north-south, and numbers increase from west to east and south to north.
Three-digit interstate meaning
A three-digit interstate beginning with an even digit is a loop or bypass around a city. One beginning with an odd digit is a spur into the city that does not reconnect.
County road marker
A blue pentagon-shaped marker with white numbers identifies a county road. It is distinct from the white Colorado state highway marker and from the interstate shield.
Solid yellow line
A solid yellow line on your side of the centerline means do not pass. A broken yellow line permits passing when safe, and double solid yellow prohibits passing in both directions.
Solid white edge line
A solid white line separates traffic moving in the same direction and marks the right edge of the roadway. Crossing it is discouraged and often marks a shoulder or restricted area.
Type 3 object marker
A type 3 object marker is a vertical striped panel with yellow and black or red and white diagonal stripes. It marks a hazard or obstruction at the edge of the roadway.
Crossbuck sign meaning
A white X-shaped crossbuck with black letters marks a railroad crossing and has the same meaning as a yield sign. Yield to trains, and stop if a train is approaching.
Flashing red railroad lights
Flashing red lights at a railroad crossing require a full stop. Remain stopped until the lights stop flashing and the gate is fully raised; never drive around a lowered gate.
School zone sign color
School zone and school crossing signs are fluorescent yellow-green pentagons or diamonds. The posted school speed limit applies during the stated hours or when lights flash.
Advisory speed plaque
A yellow plaque below a warning sign shows the recommended maximum speed for the condition ahead. It is often lower than the posted limit and applies in good conditions.
Chevron alignment sign
A black-and-yellow chevron sign marks a sharp change in alignment. The arrow points in the direction of the curve, and repeated chevrons indicate a continuing curve.
Road narrows sign
A yellow diamond showing a road narrowing indicates reduced lane width ahead. The symbol shows which side loses width, so adjust position and speed before reaching it.
Slippery when wet sign
A yellow diamond reading SLIPPERY WHEN WET warns of reduced traction on wet pavement. Lower your speed before the hazard and avoid sudden braking or steering inputs.
Steep grade warning
A yellow diamond with a percent grade and truck symbol warns of a steep descent. Shift to a lower gear and avoid riding the brakes on long mountain grades.
Colorado traction law
Colorado traction laws require adequate tires or chains on designated mountain segments during winter conditions. Signs on the corridor state the required equipment for passenger vehicles.
Variable speed limit sign
Electronic variable speed limit signs on corridors such as I-70 mountain routes display a limit that overrides the static posted speed when it is displayed.
Bridge ices before road
A sign reading BRIDGE ICES BEFORE ROAD warns that bridge decks freeze earlier than pavement. Reduce speed and avoid sudden braking on bridges and overpasses in cold weather.
Wildlife crossing warning
A yellow diamond with a deer or elk symbol warns of wildlife on the roadway. Scan the shoulders and slow down, especially at dawn and dusk in Colorado mountain corridors.
No passing zone pennant
A yellow pennant-shaped sign marks the start of a no passing zone. Passing is prohibited until the zone ends, regardless of the centerline marking in some cases.
Green guide sign
Green signs with white legends give directions, distances, and destinations on conventional highways. They are informational and do not by themselves impose a legal requirement.
Blue motorist service sign
A blue sign with white symbols marks motorist services such as rest areas, hospitals, and fuel. Brown signs instead mark recreation areas and points of interest.
Mile marker numbering
Green mile marker signs with white numbers appear at one-mile intervals on interstates. Numbers increase from south to north and west to east and locate your position for emergencies.
Mandatory lane arrow
A white sign or pavement arrow showing a direction requires you to travel that way from the lane. A left-turn-only arrow means you must turn left, not continue straight.
Red circle with slash
A red circle with a diagonal slash over a black symbol on a white background prohibits that action. It is a regulatory sign and is legally enforceable.
Sharrow pavement marking
A shared-lane marking, or sharrow, painted on the pavement indicates that bicyclists and motor vehicles share the lane. Give bicyclists at least three feet when passing.
Stop line at intersection
A solid white bar across your lane at an intersection is the stop line. Stop before it; if there is no line, stop before the crosswalk or the edge of the intersection.