Colorado Road Signs Practice key terms

A white rectangular sign with black numerals stating the maximum lawful speed in miles per hour on that road under normal conditions; driving faster is a violation even if traffic moves faster.

The rule that you must never drive faster than is safe for current conditions, regardless of the posted limit; snow, ice, rain, or heavy traffic can make a legal speed unsafe.

An eight-sided red sign with white letters requiring a complete halt at the stop line, crosswalk, or entrance to the intersection before proceeding when safe.

An intersection where every approach has a stop sign, so vehicles proceed in the order they arrived; if two arrive together, the one on the right goes first.

An inverted triangle sign meaning you must slow or stop as needed and let crossing or merging traffic go first; you proceed only when the way is clearly clear.

A sign that states a law or rule drivers must obey, such as a speed limit, turn restriction, or lane-use requirement; violating it is a traffic offense.

A white rectangular sign with a black or red slash through a turn arrow, prohibiting that turn at the location; turning anyway is a citable violation.

A sign showing the only permitted movement or lane use, such as a white arrow on a black square for one-way traffic or a required turn lane.

A yellow diamond sign alerting drivers to a change or hazard ahead, such as a curve, intersection, or narrowing; it does not itself set a legal requirement beyond reasonable care.

A yellow diamond showing a bending arrow, indicating a curve ahead; the arrow's direction shows which way the road bends and a plaque may post a safe advisory speed.

A rectangular yellow sign with a black chevron placed through a sharp curve to show its direction; multiple chevrons guide you through the turn, especially at night or in bad weather.

A yellow rectangular plaque below a warning sign giving a recommended speed for the hazard, such as 25 mph for a curve; it is a safe-speed guide, not the legal maximum unless posted as a limit.

A yellow diamond showing a crossroad or side-road symbol, telling you an intersection is ahead so you can check for cross traffic and adjust speed.

A yellow diamond showing a lane joining from the side, warning that traffic will enter your roadway; adjust speed or change lanes to allow a smooth merge.

A yellow diamond showing a lane ending, indicating that two lanes will become one ahead; merge early rather than waiting until the lane physically ends.

A yellow diamond showing a steep downgrade percentage, warning of a long or steep descent where you should slow down and avoid riding the brakes.

A yellow diamond showing a car with skid marks, warning that the surface loses traction when wet; reduce speed and avoid sudden braking or steering.

A yellow diamond stating ice may be present, often on bridges or shaded stretches; expect patchy ice even when the rest of the road looks clear.

An orange diamond sign warning of construction or maintenance activity ahead; orange marks temporary traffic control, and higher fines often apply for moving violations in the zone.

An orange diamond showing a worker holding a flag, warning that a person controls traffic ahead; slow down and follow the flagger's signals, which override signs and signals.

The cones, barrels, barricades, signs, and markings used to guide traffic through a work zone; they may change lane paths and override normal pavement markings.

A cone, drum, or tubular marker used to separate traffic from work areas and guide vehicles along a temporary path; hitting one signals you have left the intended lane.

A sign giving directions, destinations, distances, or route information, typically green on freeways and white or brown elsewhere; it informs rather than commands.

A red, white, and blue shield sign identifying an Interstate highway; even numbers generally run east-west and odd numbers north-south, with three-digit numbers marking spurs or loops.

A sign identifying a numbered state route, such as a Colorado state highway; the design varies by state, so learn the local shape and colors before driving unfamiliar roads.

A small sign, often a plain rectangle with a number, identifying a county road; these roads may be narrower, unpaved, or less maintained than state highways.

A guide sign listing cities, distances, or exit destinations so drivers can choose the correct lane or exit; read it early because lanes may separate at the exit.

The convention that shape alone conveys meaning: octagon means stop, inverted triangle means yield, diamond means warning, and rectangle means regulatory or guide information.

The convention that color conveys meaning: red for stop or prohibition, yellow for warning, orange for work zones, green for guide information, and blue for services.

Paint or raised material on the road surface, such as lane lines, arrows, and crosswalks, that guides traffic and supplements signs; broken lines may be crossed, solid lines generally may not.

A line marking the outer edge of the travel lane; a solid white line marks the right edge and a solid yellow line marks the left edge of divided highways.

The line separating traffic moving in opposite directions; a solid yellow line means no passing, while a broken yellow line permits passing when safe.

A small reflectorized sign, often yellow or black, mounted on a fixed object near the roadway such as a bridge pier or sign post, making the hazard visible at night.

A yellow circular sign with a black X and two R's marking a railroad crossing ahead; slow down, look both ways, and never stop on the tracks.

A white X-shaped sign with black letters reading RAILROAD CROSSING, placed at the tracks; it means yield to trains, and a train always has the right of way.

A large white X painted on the pavement before tracks, sometimes with the letters RR, warning drivers to expect a crossing and stop if a train approaches.

A yellow-green diamond or pentagon sign marking a school area where lower speed limits apply during posted hours; watch for children, crossing guards, and stopped buses.

A sign posting a reduced speed limit that applies during specified school hours or when children are present; the lower limit is enforceable only within those stated conditions.

A yellow diamond showing a walking figure, warning of a crosswalk ahead; slow down and be ready to stop for people on foot or on bicycles.

White lines or bars on the pavement showing where pedestrians cross; drivers must yield to pedestrians in a crosswalk, marked or unmarked, at intersections.

A Colorado sign directing drivers to install tire chains or traction devices, commonly required on mountain passes during winter storms; ignoring it can result in fines and blocked roads.

A sign marking an emergency escape ramp of gravel or a rising grade for trucks that lose braking on steep descents; passenger cars should keep clear of the ramp entrance.

A yellow diamond showing a leaping deer or other animal, warning that animals may enter the road; scan the shoulders and slow down, especially at dawn and dusk.