- Octagon (8-sided) red sign
- Always means STOP — come to a complete stop, even before you can read the word.
- Downward-pointing triangle sign
- YIELD — slow down, give the right-of-way, and stop if necessary.
- Yellow diamond-shaped sign
- A warning of a hazard or change in road conditions ahead (curve, merge, crossing).
- Yellow-green pentagon (5-sided) sign
- Marks a school zone or school crossing.
- Round yellow sign
- Warns of a railroad crossing ahead.
- Vertical white rectangular sign
- A regulatory sign — a traffic law you must obey, such as a speed limit or 'Right Turn Only.'
- Pennant-shaped yellow sign (on the left)
- Marks the start of a no-passing zone.
- Steady yellow traffic light
- The signal is about to turn red — prepare to stop.
- Flashing red traffic light
- Means the same as a STOP sign: come to a complete stop, then proceed when safe.
- Flashing yellow traffic light
- Slow down and proceed with caution.
- Steady red arrow
- Stop and do not turn in the direction of the arrow.
- Steady green arrow
- You may proceed in the direction of the arrow; the way is protected.
- Solid yellow line next to your lane
- Passing is not permitted from your side of the road.
- Broken (dashed) yellow line
- Passing is allowed when the way ahead is clear.
- Double solid yellow lines
- No passing in either direction.
- Broken white line
- Lane changes are permitted when it is safe.
- Solid white line
- Discourages lane changes; often marks the edge of the road or a lane you should stay in.
- Yellow lines vs white lines
- Yellow lines separate traffic moving in opposite directions; white lines separate traffic moving the same direction.
- Red sign color
- Stop, yield, or prohibition (do not / no).
- Yellow sign color
- General warning of a hazard or condition ahead.
- Orange sign color
- Construction and work-zone warnings.
- Green sign color
- Guide signs — directions, distances, and destinations.
- Blue sign color
- Motorist services — food, gas, lodging, hospitals.
- Brown sign color
- Recreational and cultural sites — parks and points of interest.
- Railroad crossing with flashing red lights and lowered gates
- Stop and wait until the gates rise and the lights stop flashing before crossing.
- Black-and-white rectangular speed-limit sign
- A regulatory sign that sets the legal maximum speed for that road.
- What to do at a faded or unreadable warning sign
- Treat it as a warning — slow down and be cautious about a possible hazard ahead.
- Crossbuck sign
- The white X-shaped 'RAILROAD CROSSING' sign — yield to any approaching train.
- Steady green light
- Go if the intersection is clear; you may turn after yielding to oncoming traffic and pedestrians.
- White regulatory 'Right Turn Only' sign
- You must turn right from that lane — it is a traffic law, not a suggestion.
- Two-way-left-turn lane (center lane with yellow lines)
- A shared center lane used only for left turns from either direction; never for through travel.
- HOV / diamond-marked lane
- A high-occupancy-vehicle lane reserved for vehicles carrying the required number of occupants.
- Stop line at an intersection
- The solid white line where you must stop before the crosswalk or intersection.
- Flashing red and flashing yellow at the same intersection
- Flashing red must stop (like a stop sign); cross traffic with flashing yellow slows and proceeds with caution.
- Do Not Enter / Wrong Way signs
- Red signs telling you that you are about to travel against traffic — do not proceed.
- No U-turn sign
- A regulatory sign prohibiting U-turns at that location.
- Shared (broken) white lane lines on a multilane road
- Separate lanes going the same direction; you may change lanes when safe.
- Reserved-parking / disability sign
- Parking restricted to vehicles displaying the proper disability placard or plate.
- Pavement message 'ONLY' with an arrow
- The lane is for that movement only — you must follow the arrow.
- Yellow pedestrian or bicycle warning sign
- Watch for people walking or cycling crossing or sharing the road ahead.
- Illinois maximum speed limit — rural interstate
- 70 mph on rural interstates and tollways for passenger vehicles.
- Illinois default speed — rural two-lane highway (unposted)
- 55 mph when no other limit is posted outside an urban district.
- Illinois default speed — urban-district street (unposted)
- 30 mph on a street within an urban district when no sign is posted.
- Illinois default speed — alley in an urban district
- 15 mph in an alley within an urban district.
- Illinois school-zone speed limit
- 20 mph on school days between 7 a.m. and 4 p.m. when children are present.
- Does a posted sign override the default speed limit?
- Yes — a posted speed-limit sign always controls over the statutory default.
- Four-way stop — who goes first?
- The first vehicle to stop proceeds first; if two stop together, the driver on the left yields to the driver on the right.
- Right-of-way at an uncontrolled intersection
- Yield to the vehicle on your right and to any vehicle already in the intersection.
- Right-of-way rule of thumb
- Right-of-way is something you GIVE, not take — when in doubt, yield.
- Entering a roundabout in Illinois
- Yield to traffic already circulating and enter only when there is a safe gap; travel counterclockwise.
- Turn-signal distance in an urban area (Illinois)
- Signal continuously for at least the last 100 feet before a turn or lane change.
- When is a U-turn prohibited in Illinois?
- On a curve or near the crest of a hill where you cannot be seen by approaching traffic (and where signs prohibit it).
- Left turn at a green light
- Yield to oncoming traffic and pedestrians, then turn when there is a safe gap.
- Right turn on red in Illinois
- Permitted after a full stop, unless a sign prohibits it, once you yield to traffic and pedestrians.
- Moving violations that suspend an Illinois license (21+)
- 3 moving-violation convictions within 12 months.
- Moving violations that suspend a license (under 21)
- 2 moving-violation convictions within 24 months.
- Illinois GDL permit age
- 15, if enrolled in an approved driver education course.
- GDL supervised-practice requirement
- 50 hours of supervised practice driving, including 10 hours at night.
- GDL permit minimum holding period
- At least 9 months before a teen can take the road test.
- GDL initial-license age
- 16 — a restricted (initial) license with curfew and passenger limits.
- GDL nighttime curfew (Sun–Thu)
- No driving 10 p.m. to 6 a.m. for a licensed driver under 18.
- GDL nighttime curfew (Fri–Sat)
- No driving 11 p.m. to 6 a.m. for a licensed driver under 18.
- GDL passenger limit (first 12 months / under 18)
- Only one passenger under age 20, unless they are family members.
- Who administers Illinois driver's licenses?
- The Illinois Secretary of State (Driver Services) — Illinois has no separate DMV.
- Illinois full-license age (GDL graduation)
- 18, when GDL curfew and passenger restrictions end (with a clean recent record).
- Number of questions on the Illinois written test
- 35 questions, drawn from the Rules of the Road.
- Passing score on the Illinois written test
- About 80% — 28 of 35 correct.
- Speeding in an Illinois work zone
- Carries increased fines and stricter penalties, especially when workers are present.
- Following-distance basic rule
- Keep at least a 3-second following gap; increase it in poor weather or behind large vehicles.
- Stopping at a stop sign with no stop line or crosswalk
- Stop at the point nearest the intersection where you have a clear view of cross traffic.
- Yielding when merging onto a freeway
- Match traffic speed on the ramp and merge into a safe gap; merging traffic yields to traffic already on the freeway.
- Passing on the right
- Allowed only under limited conditions (such as a vehicle turning left) and never by leaving the paved roadway.
- Driving in the left lane on a multilane highway
- Use it for passing; return to the right lane afterward so faster traffic can pass.
- Pulling over for a police stop
- Signal, pull to the right as far as safe, stop, and stay in the vehicle with hands visible.
- When can you legally park near a fire hydrant?
- Never within the posted distance of a hydrant (commonly 15 feet) — it blocks emergency access.
- Backing up safely
- Check behind the vehicle, back slowly, and never back up on a highway or shoulder.
- Two vehicles facing each other, both turning left
- Turn to the left of each other (pass driver-side to driver-side) when it is safe.
- Vehicle on a minor road meeting a major road
- The driver on the minor road yields to traffic on the through (major) road.
- Reporting an accident in Illinois
- A crash with injury, death, or significant property damage must be reported; stop and exchange information.
- When your license expires (under 21)
- An Illinois under-21 driver's license expires on the holder's 21st birthday.
- Adult DUI BAC limit in Illinois
- 0.08 percent for a driver 21 or older.
- Commercial-driver (CDL) BAC limit
- 0.04 percent while operating a commercial motor vehicle.
- Zero Tolerance Law (under 21)
- Any trace of alcohol above 0.00 can cost a driver under 21 their driving privileges.
- Zero Tolerance first offense — positive test
- A 3-month suspension for a driver under 21.
- Zero Tolerance first offense — test refusal
- A 6-month suspension for a driver under 21.
- Implied Consent Law
- By driving on a public road you agree to submit to chemical testing of breath, blood, or urine if lawfully arrested for DUI.
- Statutory summary suspension — first failed test
- 6 months for a first offender who fails a chemical test after a DUI arrest.
- Statutory summary suspension — first refusal
- 12 months for a first offender who refuses chemical testing.
- Can you be charged with DUI below 0.08?
- Yes — if alcohol or any drug impairs your driving, you can be charged regardless of BAC.
- Illinois hand-held phone law
- Hand-held device use while driving is illegal; only hands-free use is allowed (no phone at all under 19).
- Texting while driving in Illinois
- Banned for all drivers.
- First-offense fine — hand-held device
- Up to $75 for a first hand-held electronic-device offense.
- Illinois seat-belt law
- All occupants, front and back seats, must wear a safety belt (a primary offense).
- Child restraint — under age 8
- Children under 8 must be secured in an appropriate car seat or booster seat.
- Rear-facing seat requirement (under 2)
- A child under 2 must be rear-facing unless over 40 pounds or 40 inches tall.
- When to use headlights in Illinois
- From sunset to sunrise, and whenever weather requires continuous use of the windshield wipers.
- Headlights with wipers rule
- If your wipers are running because of weather, your headlights must be on.
- How to recover from a skid
- Ease off the accelerator and steer in the direction you want the front of the car to go; do not slam the brakes.
- Hydroplaning
- Tires ride up on a film of water and lose contact; ease off the gas without braking hard until traction returns.
- Why is the road slickest just after rain begins?
- Oil and dust on a long-dry road rise and mix with the first water, making it unusually slippery.
- Checking your blind spot
- Glance over your shoulder before changing lanes — mirrors leave a blind zone a head check confirms is clear.
- Parking uphill next to a curb
- Turn the front wheels away from the curb so the car rolls into the curb if it moves.
- Parking downhill next to a curb
- Turn the front wheels toward the curb so the car rolls into the curb if it moves.
- Parking on a hill with no curb
- Turn the front wheels toward the edge of the road so the car would roll away from traffic.
- Warning a tailgater
- Tap your brake lightly a few times to warn them early, then gradually increase the gap to the car ahead.
- Handling an aggressive tailgater you can't move over for
- Maintain a steady speed and slowly increase your following distance to the car in front of you.
- Driving into bright low-sun glare
- Slow down, use the visor and sunglasses, and increase your following distance.
- Driving in strong crosswinds
- Keep a firm grip on the wheel, slow down, and be ready for sudden gusts, especially past large trucks.
- Approaching a blind intersection (view blocked)
- Slow down and edge forward only enough to see cross traffic before proceeding.
- Signs a driver ahead may be impaired
- Drifting between lanes and erratic braking — assume impairment or distraction and increase following distance.
- Zipper merge
- Use the ending lane up to the merge point, then take turns merging one car at a time.
- Why avoid traveling side-by-side with another car
- Staying out of side-by-side clusters keeps an escape path open and reduces blind-spot conflicts.
- Open-alcohol-container law
- Illinois prohibits open alcohol containers in the passenger area of a moving vehicle.
- Drowsy driving
- Fatigue slows reaction time like alcohol; stop and rest rather than relying on coffee or open windows.
- Safe gap when following a motorcycle
- Increase your following distance — motorcycles can stop quickly and are easy to misjudge.
- Adjusting speed for conditions
- Even at or below the posted limit, slow down when rain, fog, ice, or traffic make the limit unsafe.
- Two-second rule purpose
- Measuring following distance in seconds keeps a safe gap regardless of speed; use 3+ seconds in poor conditions.
- What to do if your brakes fail
- Pump the brakes, downshift, use the parking brake gradually, and steer to a safe stop off the road.
- Driving in fog
- Use low-beam headlights (not high beams), slow down, and increase following distance.
- High beams vs other traffic
- Dim high beams within 500 feet of an oncoming vehicle and 300 feet behind a vehicle you are following.
- Scott's Law (Move Over Law)
- Approaching an emergency vehicle with flashing lights, change to a lane not adjacent to it when safe, or slow down.
- Scott's Law first-violation minimum fine
- A minimum fine of $250.
- Scott's Law expansion (Jan 1, 2026)
- Applies to all emergency vehicles displaying flashing lights, whether stationary or moving.
- Who is Scott's Law named for?
- Lieutenant Scott Gillen, killed by a passing vehicle while responding to a crash.
- Stopping for a school bus on a two-lane / undivided road
- Traffic from BOTH directions must stop and stay stopped until the lights stop flashing.
- Stopping for a school bus on a divided highway (physical median)
- Only drivers traveling the SAME direction as the bus must stop.
- School-bus stop arm
- The hinged STOP sign that swings out when the bus loads or unloads — stop when it's extended with red lights.
- Passing distance for a bicyclist in Illinois
- At least 3 feet of clearance when passing.
- Turning right across a bike lane
- Yield to a bicyclist riding straight and let them pass through the intersection before you turn.
- Truck blind spots (No-Zones)
- The large areas to the sides, directly behind, and in front of a truck where the driver cannot see you.
- Truck making a wide right turn
- It may swing left first — stay back and never try to squeeze between the truck and the curb.
- Cutting in front of a large truck
- Don't — trucks need much more distance to stop than cars.
- Approaching emergency vehicle with siren while you're moving
- Pull over to the right edge of the road and stop until it passes.
- Emergency vehicle approaching while you're boxed in at a light
- Stay where you are unless you can move safely, and let it find a path around you.
- Police officer directing traffic vs the signal
- Obey the officer — their directions override the traffic signal, even a green light.
- Tow truck with flashing amber lights on the shoulder
- Move over a lane if safe, or slow down — the Move Over law covers it.
- Funeral procession
- Yield the right-of-way; do not cut into or interrupt the procession, even on a green light.
- Pedestrian at an unmarked intersection
- Yield — a crosswalk exists at an intersection even without painted lines.
- Slow-moving-vehicle emblem (orange triangle)
- Marks a vehicle traveling far below normal speed; stay back and pass only in a legal zone.
- Following farm equipment on a country road
- Stay back at a safe distance and pass only with a clear, legal, well-visible stretch of road.
- Judging a motorcycle's distance at night
- A single headlight makes its distance and speed harder to judge — be extra cautious.
- Motorcyclist shifting position before broken pavement
- Riders move to absorb or avoid hazards that barely affect cars — leave them room.
- Sharing a roundabout with a large truck
- Avoid driving alongside it; the truck may need extra room and swing wide.
- Ice cream truck stopped in a neighborhood
- Slow down greatly and be ready to stop — children may dart into the street.
- Passing a slow vehicle with a double-solid-yellow line
- Stay behind at a safe distance until you reach a legal passing zone.
- Light, high-sided trailer in strong wind
- It can sway or be pushed by gusts, affecting the towing vehicle and nearby traffic — give it room.
- Construction work zone with no workers visible
- Obey the reduced work-zone speed limit and watch for sudden lane shifts anyway.
- Bicyclists' road rights in Illinois
- Bicyclists have the same rights and duties as drivers; treat them as legitimate road users.
- Merging near a large tractor-trailer
- The truck needs much more distance to slow down — do not cut in close in front of it.
- Passing a bicyclist with oncoming traffic
- Wait behind until oncoming traffic clears and you can pass with full 3-foot clearance.
- Where most truck crashes with cars happen
- In a truck's No-Zones; stay visible and avoid lingering beside or behind a truck.
- Emergency vehicle right-of-way
- Emergency vehicles with lights and siren have the right-of-way; all others must yield.
- Yielding to pedestrians at a crosswalk
- Always yield to pedestrians in a marked or unmarked crosswalk; stop if they are crossing.
- Sharing the road with a moped or scooter
- Give a full lane and the same courtesy as a motorcycle; they are smaller and easy to overlook.
- Children playing near the road
- Slow down and be ready to stop — children are unpredictable and may run into the street.
- Stopping distance for trucks vs cars
- A loaded truck needs far more room to stop, so never brake suddenly in front of one.
- Right-of-way for an emergency vehicle at an intersection
- Stop and clear the intersection; do not block its path.
- Why give distracted drivers extra room
- They may not see you or react, so you provide extra room and predictability.
- One-lane bridge or narrow passage
- Yield to the vehicle that reached the narrow section first and wait if needed.
- Animals or livestock on a rural road
- Slow down, be ready to stop, and pass only when the animals and handler are clear.
- Right turn from the correct lane
- Make right turns from the lane nearest the right curb, into the nearest right lane.
- Left turn from the correct lane
- Turn left from the lane nearest the center line, into the lane just right of the center line.
- Three-point turn
- A way to reverse direction on a narrow road using forward, reverse, and forward movements when no U-turn is allowed.
- Yielding when leaving a driveway or parking lot
- Yield to all traffic and pedestrians on the road or sidewalk before entering.
- Stop for a stopped school bus — direction of approach
- On an undivided road you stop whether you are behind or meeting the bus.
- Penalty for illegally passing a stopped school bus
- Heavy fines and a license suspension in Illinois.
- Vision screening at the Secretary of State
- An eyesight check confirming you meet Illinois' minimum visual acuity before a license is issued.
- Restricted driving permit (RDP)
- A limited permit a suspended driver may seek to drive for work, school, or medical needs.
- BAIID (breath alcohol ignition interlock device)
- A device that requires an alcohol-free breath sample to start the car, often required after a DUI.
- Point system / record keeping
- The Secretary of State tracks convictions against the moving-violation suspension thresholds.
- When approaching a yellow light
- Stop if you can do so safely; the yellow means red is coming, not 'speed up.'
- Green light but intersection blocked
- Do not enter the intersection until you can clear it — never 'block the box.'
- Sharing the road with farm tractors
- They move far below the limit and may turn into fields; pass only in a clear legal zone.
- Pedestrian with a white cane or guide dog
- Always yield — they have the absolute right-of-way.
- Driving on a road shoulder
- Not allowed for travel or passing; the shoulder is for emergencies only.
- Aggressive driving / road rage
- Stay calm, avoid eye contact, don't engage, and create distance from an aggressive driver.
- When to yield to a bus re-entering traffic
- Yield to a transit bus signaling to re-enter the flow of traffic from a bus stop.
- Wet-road braking
- Brake earlier and more gently on wet pavement; allow extra stopping distance.
- Highway hypnosis on long drives
- Staring at the road can dull alertness; keep your eyes moving and take breaks.
- Sun visor and clean windshield
- Keep the windshield clean and use the visor to manage glare and maintain a clear view.
- Signaling a lane change
- Signal, check mirrors, glance over your shoulder for the blind spot, then move when clear.
- Yield sign action
- Slow down, give the right-of-way to traffic and pedestrians, and stop only if necessary.
- Stale green light
- A green light that has been green a while may change soon — be ready to stop.
- Crosswalk without a signal
- Drivers must yield to pedestrians in the crosswalk; pedestrians should still look before crossing.
- Required headlight use in a tunnel
- Turn headlights on in tunnels and any time visibility is reduced.
- Bicyclist using a full lane
- A cyclist may legally take the lane when it is too narrow to share safely; pass only when clear.
- Stopping for pedestrians at a flashing 'walk'
- Yield to pedestrians who have the walk signal before turning.
- What does 'DUI' stand for?
- Driving Under the Influence (of alcohol, drugs, or any intoxicating substance).
- Driving with expired registration or no insurance
- Illegal in Illinois; mandatory liability insurance and current registration are required.
- Mandatory liability insurance
- Illinois requires every vehicle to carry minimum liability insurance.
- Leaving the scene of an accident
- A serious offense — you must stop, exchange information, and render aid.
- School-zone fine enhancement
- Speeding or violations in a school zone carry increased penalties.
- Watch for motorcycles at intersections
- Most car-motorcycle crashes happen at intersections; look twice before turning or pulling out.
- Construction-zone flagger
- Obey a flagger's directions; they control traffic through the work zone like an officer.
- Passing on a hill or curve
- Never pass where you cannot see far enough ahead to do it safely and legally.
- Antilock brakes (ABS) in a hard stop
- Press and hold firm steady pressure; let ABS pulse the brakes — do not pump them.
- Right-of-way for emergency responders on foot
- Slow down and watch for first responders working in or near the roadway.
- Reduced traction on bridges and overpasses
- They freeze before other roads; slow down and avoid sudden moves in cold weather.
- Sharing the road with pedestrians in a work zone
- Watch for workers on foot and obey reduced speeds even if you don't see them at first.
- Why Illinois calls its agency the Secretary of State
- In Illinois, the Secretary of State — not a 'DMV' — issues licenses, registers vehicles, and gives the driver tests.
