Sharing the Road and Vehicle Equipment: Bicycles, E-Bikes, Emergency Vehicles, Trucks, Mobility Vehicles, Scooters, Motorcycles, Pedestrians, Police Stops, Slow Vehicles, Street-Legal ATVs, Trains, Light Rail, Equipment and Towing: Vulnerable Users and Three Feet, Using the Center Lane to Pass a Slow Bicycle, When You May Not Pass a Bicycle, Rider Rules and Three E-Bike Classes, Staying 500 Feet Behind Fire Trucks, the Move Over Law and Its Four-Hour Course, Trucks Causing Only 29 Percent of Their Fatal Crashes, Size Limits of 8½, 14, 45 and 65 Feet, Blind Spots of 20 and 200 Feet, 335 Feet to Stop, Helmets Under 21, Lane Filtering at 15 mph, the 90-Second Dead Signal Rule, Stopping Until a Pedestrian Clears Your Half, Police Stops, the 25 mph Triangle, Golf Carts and Horses, Street-Legal ATVs at 50 mph, Stopping 15 to 50 Feet From the Rails, a Mile to Stop a Train, TRAX Trains at 65 mph in 21 Seconds, Every Equipment Rule From Headlights to Wipers, Towing Rules and Warning Device Placement

Written for aiforu2 as the source for a practice-test bank and the on-device tutor for the Utah Class D written knowledge test. The facts follow the official handbook; the wording is ours.

Source: Utah Driver Handbook (Utah DLD, 2026), Section 14 "Sharing the Road" (pages 74–89), Section 15 "Vehicle Equipment" (pages 90–92) and Section 16 "Towing" (pages 93–94).

Vulnerable users and bicycles

Everyone has a right to the road; be courteous and communicate. Utah defines a vulnerable user as a pedestrian, including highway and utility workers and emergency responders in the right-of-way, a person riding an animal, and anyone on a farm tractor or implement without an enclosed shell, skateboard, roller or in-line skates, bicycle, electric-assisted bicycle, electric personal assistive mobility device, moped, motor-driven cycle, motorized scooter, motorcycle or wheelchair; distracting one with intent to cause violence or injury or to force them off the road brings a citation, points and a record entry. Bicycles are vehicles with the same rights and duties, harder to see, and ridden with varying skill, so expect sudden moves. You must yield to bicyclists at intersections as to pedestrians and vehicles; yield where a bike path or lane crosses a road, and never stop, park or drive in a bike lane, marked by solid white lines, except entering or leaving an alley or driveway, on official duty at police direction or in an emergency; give as much space as possible, slow, and let a cyclist clear the intersection before turning; avoid sudden slowing or stopping, since your brakes far outmatch a bicycle's; avoid the horn near riders unless a crash threatens; watch for riders entering your lane, especially children on sidewalks, whose peripheral vision and judgment of speed and distance are poor; never turn sharply in front of a rider or force one off the road; look for riders anywhere though they must ride with traffic, and keep at least three feet from any bicyclist or vulnerable user you pass; when a bicyclist rides slower than reasonable you may use the center two-way left-turn lane of a road with three or more lanes to pass; dim your headlights within 500 feet when approaching or overtaking riders at night; take care on wet, sandy or graveled roads, which affect bicycles far more; check to the sides and rear for riders before opening a door when parked on the street; check for riders before backing, especially near schools and homes; and read riders' hand signals for turns and stops while watching for a turned head when both hands must stay on the bars, knowing a rider may use left-turn and two-way left-turn lanes like a car. You may not pass a bicycle or moped going your way if it cannot be done safely, including approaching or on the crest of a grade or a curve with an obstructed view, within 100 feet of or crossing an intersection or railroad crossing unless a device says otherwise, within 100 feet of a bridge, viaduct or tunnel with an obstructed view, or when the pass cannot be made lawfully, and you should move into a lane to the left when one exists and the move is legal. A rider must never ride impaired, must keep at least one hand on the bars and carry nothing that prevents using both, needs a brake that stops the bicycle within 25 feet from 10 mph, should wear a CPSC-approved helmet, must show a white headlight, red taillight or reflector and side reflectors visible 500 feet from half an hour before sunrise to half an hour after sunset or whenever vehicles are hard to see at 1,000 feet, must obey signs and signals and never ride against traffic, should make eye contact with drivers, must ride slowly on sidewalks and crosswalks yielding to pedestrians with an audible signal before passing, rides as far right as safe (either side of a one-way city street), never hitches to a vehicle, may not carry a siren or whistle, rides no more than two abreast without impeding traffic, and carries no more people than the bicycle is built for except a child secured in a backpack or sling. An electric-assisted bicycle has a motor of no more than 750 watts, working pedals and permanent cranks and works as a bicycle without the motor: Class 1 assists only while pedaling up to 20 mph, Class 2 may propel on its own up to 28 mph, and Class 3 assists only while pedaling up to 28 mph and carries a speedometer; no one under eight may ride one on public property, riders under 14 need a parent's direct supervision, and no one under 16 may ride a Class 3.

Emergency vehicles and the Move Over law

When police, fire, ambulance or other emergency vehicles approach with sirens, lights or other warnings you must yield, driving at once to the right side and stopping until they pass; unless on official business, never follow within 500 feet of a fire vehicle answering an alarm, and never drive or park on the block where it has stopped. Move Over laws answer the rising number of officers, medics and firefighters struck at the roadside: approaching a stationary vehicle beside a highway, not in an apparent legal parking area, with hazard lights flashing, reduce speed, give as much space as practical and, when safe and practical, change into a lane not adjacent to it; a driver in the HOV lane approaching a stopped vehicle with amber lights changes out of the HOV lane into a non-adjacent lane when practical. A conviction for not moving over requires a four-hour live classroom defensive driving course within 90 days, and skipping it suspends the license for 90 days.

Large trucks

Trucks are not large cars, and NHTSA finds 71 percent of fatal crashes between a truck and another vehicle are caused by the other vehicle, usually a car. Legal size limits, which no local authority may change, allow no vehicle wider than 8½ feet including load (farm tractors 9 feet, and farm machinery may move short distances at any size), taller than 14 feet, or, for a single vehicle other than fire equipment, longer than 45 feet including bumpers, a tractor and semi-trailer counting as two vehicles, while any other combination such as a motor home towing a boat may not exceed 65 feet long, 8 feet wide and 14 feet high; vehicles registered for 16,001 pounds or more must show the registered weight on both sides in letters at least two inches high. Driving anything larger, know its dimensions and slow when clearance is under six inches, let the other vehicle through bridges and tunnels not built for two, and watch for fire escapes, tree limbs and filling station canopies, including the canopies at some Driver License offices. No load may extend more than three feet in front or six feet behind the body, beyond the left fenders, or more than six inches beyond the right fenders. Trucks have longer stopping and accelerating distances, wider turns and more weight, and on multi-lane highways they stay in the center lane to ease local traffic and keep options for avoiding trouble. Avoid cutting off a truck to reach an exit or turn, since the open space ahead is the driver's cushion, and never race a truck into a single-lane construction zone; lingering alongside makes evasive action impossible; following closely means that if you cannot see the truck's mirrors the driver cannot see you and you lose your cushion; and never underestimate an approaching tractor-trailer's size and speed, since its size makes it look slower than it is and many car-truck collisions come at intersections from misjudging its closeness. A car at 55 mph stops in about 130 to 140 feet, under half a football field, while a loaded tractor-trailer may need more than 400 feet, a third more than the field. Watch large vehicles' signals and give room, since they swing left to clear a curb on a right turn, so wait until the turn is finished; move far right to avoid wind blast from an oncoming truck; stop lines set you back to give trucks turning room, so stop behind them; and never cut in front of a truck in traffic. Rear wheels track inside the front wheels, more so on long vehicles, so tractor-trailer drivers swing left to begin a right turn; watch their signals before passing on the right. Truckers sit twice as high with bigger mirrors yet have serious blind spots, up to 20 feet ahead of the cab, along both sides especially by the cab, and up to 200 feet behind: if you cannot see the driver in the side mirror, the driver cannot see you. The No-Zone covers those sides, rear and front: the largest side blind spot is on the right from behind the cab down the truck's length, so never ride alongside longer than needed; a loaded truck at 55 mph needs at least 335 feet to stop, more than 1.5 times a car, so never pull out or change lanes in front of one, and when passing wait to see its whole front in your mirror before returning; and the rear zone runs 200 feet, where the driver cannot see you and you cannot see ahead, so keep back where the side mirrors show you and expect a stopped truck on a hill to stall or roll back.

Mobility vehicles, scooters and motorcycles

A mobility vehicle, used by a person with a physical disability under a division permit that sets its conditions, and a pedestrian vehicle, built for the disabled at under 48 inches wide, under 300 cc and 12 horsepower and no more than 30 mph, may use the highways exempt from registration, inspection and the usual license. Motor-assisted scooters follow bicycle, moped and motorcycle rules; riders under 15 need parent supervision or a course certificate, riders 16 and older ride unsupervised, and no one may ride one in a public parking structure, where skateboards are posted as prohibited, on a highway of four or more lanes, or where the limit exceeds 15 mph. Motorcycles require an endorsement earned like a license but with different tests, starting with a motorcycle learner permit by duplicate appointment; an approved education course may waive the skills test; every rider and passenger under 21 wears a DOT helmet; and street motorcycles need liability insurance. Give a motorcycle the entire lane, check mirrors and blind spots for them, look carefully before turning left, never trust a flashing signal that may not self-cancel, follow at least two seconds back and more when wet, expect sudden changes for potholes, gravel, slick spots, seams, crossings and grooved paving, and remember scooters and mopeds are much slower. Lane splitting, riding between moving cars, is illegal, but lane filtering is legal when the rider is on a road or off-ramp with two or more same-direction lanes, the limit is 45 mph or less (never on an on-ramp), the motorcycle travels 15 mph or less, the vehicle being passed in the same lane is stopped, and the move is safe. A motorcycle, moped or bicycle operator 16 or older may proceed through an intersection after a complete stop and a wait of at least 90 seconds when the signal fails to detect them and no vehicles or pedestrians are approaching or present, and local rules for motorcycles, e-bikes, mopeds and scooters vary by city.

Pedestrians, police stops, slow vehicles and street-legal ATVs

Stop for pedestrians, particularly one on your half of the road or approaching it, and stay stopped until they have crossed at least your half, even outside any marked or unmarked crosswalk; expect mid-block crosswalks without signs or markings; always yield to the visually impaired, coming to a complete stop for anyone crossing with a guide dog or white cane; yield to pedestrians even on a green light; watch for them beside parked or stopped vehicles and before backing; slow near playgrounds and in neighborhoods where children dart from between cars; obey the slower school-zone limit when the lights flash; and stop and yield as signaled at school crossings with a traffic patrol. Pedestrians must use sidewalks where they exist and otherwise walk or jog facing traffic on the left shoulder or as near the outside edge as possible. Drivers keep pedestrians and bicyclists safe by slowing when they see them or when visibility drops, remembering higher speed means worse injury: look for pedestrians everywhere, look twice when turning since many pedestrian crashes involve turning vehicles, take extra care at night, early morning and in bad weather, slow and be ready to stop entering any crosswalk, obey all laws including limits, yield in crosswalks and stop before the crosswalk so other drivers can see the person, back up cautiously, never pass a vehicle stopped at a crosswalk, never assume the right-of-way, and never drive impaired. Utah recorded 41 pedestrian deaths in 2025; over 2015–2025 the deadliest months were October and December and the deadliest hour 9 p.m.; the leading pedestrian factors were entering or crossing the road and walking or cycling in the road, and the leading driver factors failing to yield and disregarding signals. When police pull you over, move to the right side even from the HOV lane and stop safely, put the vehicle in park and turn off the engine, stay inside unless asked out, roll down the window, stay calm with your belt fastened and ask passengers to do the same, keep your hands on the wheel, reach slowly with one hand on the wheel when asked for documents, answer the questions, and never run, since police chases cause many fatal crashes. Watch for slow vehicles in rural areas, marked by a fluorescent or reflective orange-and-red triangle meaning under 25 mph, and be sure it is safe before passing; farm equipment crosses and travels state highways and its operator cannot hear you; municipalities may allow golf carts on designated roads, whose operators follow bicycle rules and may not drink alcohol while driving; and horse-drawn vehicles and riders have the same rights and duties, are badly hurt when hit, must not be honked at or revved at, may turn left into fields and driveways, and are announced by warning signs. An all-terrain type I vehicle (52 inches or less wide, 1,500 pounds or less, straddle seat), a type II, a utility-type vehicle (30 to 70 inches wide, 2,200 pounds or less, side-by-side seats with a wheel) or a full-size all-terrain vehicle (55 to 92 inches wide, 6,500 pounds or less) may be registered as street-legal when it meets the conditions, must pass county emissions programs, follows motorcycle rules for traffic, registration, title and plates, may be driven by any Class D or CDL holder, may use highways with one lane each direction at no more than the posted limit or 50 mph, whichever is less, keeping to the extreme right with a reflector or reflective tape on roads posted above 50, must carry headlamps, tail and plate lamps, red rear reflectors, stop lamps, turn signals front and rear, service brakes, a horn, a compliant muffler and emission system, a left mirror, a windshield or eye protection, a lit speedometer and tires no larger than the maker offered with at least 2/32-inch tread, and riders under 21 wear a DOT helmet.

Trains, railroad crossings and light rail

More people die at crossings as drivers multiply, and the odds of surviving a car-train collision are poor: use extreme caution and always slow at every crossing, never pass a car going your way at one, never park closer than 50 feet unless signs or local law allow, stop between 15 and 50 feet from the nearest rail, and turn the radio down to hear the horn. Never assume no train is coming at night because you see no lights; slow or stop and look; stop completely when lights flash and never proceed while they flash, except that after a complete stop, if you suspect the lights are malfunctioning, you may cross only with a clear view at least one mile down the tracks in both directions, no sign of a train and a safe crossing; and never drive through, around or under a gate or barrier that is down or moving. Advance warning signs tell you to slow, look, listen and be ready to stop; a stop line, an X and "RR" may be painted on the pavement; crossbucks stand at every public crossing with a plaque for multiple tracks, and you must yield to trains; flashing lights and bells mean a train is coming, so stop and check every track; and gates with flashing lights require stopping before they lower and waiting until they rise and the lights stop, never driving around them. Motorcyclists and bicyclists approach with caution without swerving for a better angle; school buses and hazardous-materials trucks must stop at every crossing, check both ways, listen, proceed only when safe and never shift gears on the tracks, and hazmat drivers should stop gradually and prefer crossings with lights and gates. Expect a train on any track at any time, since freight trains follow no schedule and passenger schedules change; tracks are private property; trains have the right-of-way 100 percent of the time, over ambulances, fire engines, cars, police and pedestrians; rails on ties mean a live track however weedy or rusty; a locomotive weighs about 400,000 pounds and a 100-car train about 6,000 tons, so a car is to a train as a soda can is to a car; a train may overhang the rail by three feet or more; a 100-car freight at 55 mph in emergency braking needs more than a mile, about 18 football fields; the nation has some 200,000 miles of track, trains move either way and are sometimes pushed; modern trains are quiet and always closer and faster than they seem; cross only at designated crossings; walking on tracks is illegal and deadly; and if your vehicle stalls on a crossing, get everyone out and off the tracks, notify authorities, and if a train is coming stay clear and run toward it at an angle away from the tracks to avoid debris, posting lookouts and trying to move the vehicle only when no train is in sight. Utah Transit Authority's TRAX light rail covers more than 45 miles of track with 67 grade crossings; each electrically powered car is 88 feet long and about 88,000 pounds, trains run one to four cars, and they reach 65 mph within 21 seconds, so never try to beat one; treat light rail crossings like any train crossing, waiting for gates to rise and lights to stop, never entering without room to clear the tracks and never stopping on them; pay extra attention to signals and signs where trains share streets and intersections; and an overhead sign flashing a train logo warns that a train is approaching, an extra caution rather than a stop command.

Vehicle equipment

Advanced driver assistance features such as blind spot warning, backup cameras, forward collision warning, automatic emergency braking, lane keeping and active parking assist may alert you or take over braking or steering, but you cannot use parking assist or cruise control on the skills test, and they assist rather than drive: stay focused, do head checks and use mirrors and cameras, read the manual, know their limits, expect failures in rain, snow, ice, fog, hills and curves, keep sensors clean and software current. All vehicles need brakes meeting federal standards on all wheels (trucks with three or more axles excepted on the front), and ABS brakes are never pumped on slick roads but pressed firmly and steadily. Buses, RVs and trailers 80 inches or wider need two amber clearance lights in front and one on each side, two red in the rear and one on each rear side, visible 500 feet at night, and two amber and red side markers per side visible 500 feet. A fire extinguisher is recommended for every driver. A load extending four feet or more beyond the bed or body needs two flags or lights at its rear, flags at least 12 inches square by day and lights visible 500 feet at night, sometimes with red reflectors. Trucks, truck tractors and buses carry three flares, reflectors or red electric lights and two red flags with standards, visible at 600 feet, flares burning 12 hours and fuses 15 minutes, and vehicles carrying explosives or flammables may not use flares or fuses. Every vehicle except a motorcycle needs at least two white headlights shining 350 feet on high beam and 100 feet on low, with a high-beam indicator; a horn audible at 200 feet; a white rear plate light readable at 50 feet; a parking brake (motorcycles excepted); white or amber front parking lights; maintained factory pollution controls (propane vehicles excepted when standards are met); no red or blue lights visible from the front except on emergency, school, snow removal or other authorized vehicles; an amber reflector on each side near the front and a red one near the rear, visible 500 feet at night and mounted 15 to 60 inches high, with a center amber reflector on vehicles 30 feet or longer; a safety chain or cable on every towed vehicle and hitch strong enough to keep them together; sirens, whistles and bells only on authorized emergency vehicles; two red tail and stop lights visible 500 feet in sunlight (one allowed on motorcycles and some vehicles built before 1956); two red, yellow or amber rear turn signals and two white, yellow or amber front signals visible 100 feet (not required on vehicles built before 1953 under 80 inches wide); a windshield on everything but motorcycles, kept clear of dirt, frost and anything hanging from the mirror; and at least one wiper, both if two were fitted, with two or more speeds on vehicles built after 1967. Vehicles rated 10,500 pounds or more, vehicles with altered suspension or tire size, and trailers weighing 750 pounds or more empty need mud flaps or guards behind the rearmost wheels, as wide as the tires, of metal or flexible material, with ground clearance no more than half the wheel's diameter.

Towing and warning devices

Towing has three rules: the drawbar or connection between vehicles may not exceed 15 feet; a chain, rope or cable connection must carry a red flag or signal at least 12 inches square; and no train of vehicles may be driven when a towed unit whips or swerves dangerously. A vehicle at least 80 inches wide or 30 feet long that is disabled or stopped along the road more than 10 minutes must display warning devices, except when legally parked in an urban district, lawfully loading passengers, stopped to avoid conflict or complying with an officer or device: immediately place a flare, lit fuse, lantern or reflector beside the vehicle toward the nearest oncoming traffic, then place devices 100 feet to the front and rear plus one on the traffic side not less than 10 feet from the rear; flares and fuses may not be carried in vehicles hauling explosives, flammable liquids or compressed gas; on a one-way street the rear device goes 200 feet back; devices are unnecessary when light reveals people and vehicles from 1,000 feet; within 500 feet of a curve, hilltop or other obstruction, the device in that direction goes far enough to give ample warning but no more than 500 feet and no less than 100 feet from the vehicle; and devices sit in the center of the stopped vehicle's lane, or on the shoulder near the pavement if the vehicle is fully off the road. Keep lit flares and fuses away from your face and eyes and from fuel leaks, and never attach one to the vehicle, which is hazardous and illegal. Prevent tire fires by checking tires and brakes for unusual heat, changing soft or flat tires, never driving long on a flat or with a dragging brake, never ignoring a hot tire, always releasing the parking brake before moving, and watching for dragging brakes, leaking oil seals and partly deflated duals; if one starts, water is the best remedy and a fire station the best help, extinguishers rarely work, shoveled dirt may slow it enough to remove the tire, driving until the tire burns off the rim or you reach water beats waiting, and dropping the trailer saves at least one unit. In any fire, make every burst of the extinguisher count, fight with the wind at your back, and never use water on a gasoline or oil fire.

Practise this with Utah Driver License questions

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