9 Colorado Driver Handbook
Route signs and markers: The shape of the sign
indicates the type of roadway: Interstate, U.S., State or
County highway.
Bicycle and pedestrian crossing signs: These signs
have a yellow background with black symbols. They are
used where both bicyclists and pedestrians might be
crossing the roadway, such as at an intersection with a
shared use path.
Pass 3 ft min signs: These signs have a white background
with black letters and symbols. Motorists,
when passing or overtaking bicyclists, must
allow for clearance of 3 feet to avoid
sideswiping on all roadways even if a sign is
not posted.
Bicycle may use full lane signs: These signs have a white
background with black letters and symbols.
They remind drivers that bicyclists have a right
to ride in the center of the lane if they feel their
safety is compromised by hazards or poor
visibility if they were to ride in the right side of
the lane.
Slow moving vehicle marker: A reflective
orange triangle on the rear of a vehicle means it
is designed to travel at speeds slower than 25
miles per hour.
Disabled parking signs: These signs mark
special parking areas for only those vehicles
displaying a disabled parking permit. Disabled
parking indicators may also appear on the
pavement in designated parking spaces.
Crosshatched sections are for van access only and parking is
not allowed at any time. In order to park in a disabled parking
space, the person who owns the disabled
placard must be entering or exiting the vehicle.
If you park illegally in a designated disabled
parking spot without a placard or plate, you
could be charged with a misdemeanor, and
if convicted, subject to a $350-$5,000 fine,
possible jail time, loss of driving privileges and/
or your car being impounded. If you park in one
of these spaces with someone else’s placard or plate, you will
be subject to jail time, loss of driving privileges and towing as
well as fines double those listed above.
PAVEMENT MARKINGS
Lines and symbols on the roadway divide lanes, tell when
you may pass other vehicles or change lanes, indicate which
lanes to use for turns, define pedestrian walkways, and mark
where you must stop for traffic signals or signs.
Yellow lines: Separate traffic moving in opposite directions.
● Broken yellow line: Passing is permitted.
● Solid yellow lines: No passing is permitted, unless to
pass a bicyclist with a minimum of three feet of space
when the oncoming travel lane is clear.
● Double solid yellow lines: Neither side can pass,
unless to pass a bicyclist with a minimum of three feet
of space when the oncoming travel lane is clear.
● Solid and broken yellow lines: You may not pass if
the solid yellow line is on your side. If the broken yellow
line is on your side, you may pass if it is safe to do so.
You must return to your lane before the broken lines
turn solid. You may cross a solid yellow line for a left
turn into an alley, private road or driveway or to pass
a bicyclist with a minimum of three feet of space when
such movement can be made safely.
White lines: Separate lanes of traffic moving in the same
direction.
● Broken white line: You may change lanes if it is safe.
● Solid white line: Requires you to stay within the lane
and also marks the shoulder of the roadway.
● Green Paint: A lane or area on the roadway designated
for bicyclists, and increases visibility of bicyclists.
● Sharrows: Some streets have shared lane markings
or “sharrows” painted on them
letting road users know that the
lane may be too narrow for drivers
and bicyclists to travel side-by-side.
Bicyclists may ride in the center
of a lane with a sharrow or in any
situation where they need to avoid obstacles or
increase visibility for their safety.
● Crosswalks: A crosswalk is a marked or unmarked
part of a road where pedestrians have the right-of-way
to cross. The driver of a vehicle shall yield the right-of-
way by slowing down or stopping, if need be, for
pedestrians crossing the roadway within a crosswalk.
Whenever you approach a vehicle from the rear that is
stopped at a crosswalk, you must not pass and must
stop behind the vehicle or behind the crosswalk in the
adjacent lane if a multi-lane roadway.
● Conflict Zones: Broken lines in a bike or bus lane that
alert drivers and bicyclists that they will be crossing
each other’s path.
LANE CONTROLS
As a general rule, you must drive your vehicle on the right
half of the road. Use only one lane, do not straddle lanes.
PASS PASS
3 3 FT MIN FT MIN
10 Colorado Driver Handbook
On roads without marked lanes, drive just to the right of the
center of the road.
Restricted lanes: One or more lanes may be restricted
for special use. Restricted lanes are marked by signs or
pavement markings stating that the lane is restricted for
special use. There will be a white diamond painted on the
road within the lane, and/or a sign posted at the side of the
road which specifies its use. Some examples are transit or
bicycle lanes.
Bike lanes: Bike lanes are for the exclusive use of bicyclists
and other authorized users. These users have the right-of-
way in a bike lane and drivers are prohibited from driving,
idling or parking in or otherwise obstructing a bike lane.
A bike lane extends through an intersection regardless of
whether paint connects the bike lane on either side.
Transit lanes: Transit lanes are where a portion of the
street, designated by signs and markings, is reserved for
the preferential or exclusive use of transit vehicles (for
example bus or light rail), sometimes allowing limited use
by other vehicles.
High Occupancy Vehicle (HOV) lanes: These
lanes are identified by a white diamond painted
on the roadway. Signs will identify the types of
vehicles and the number of occupants required
per vehicle to use the lane.
Two-way left-turn lane (Sometimes also
referred to as center turn lane): This lane is for the
exclusive use of left turning vehicles and may be used by
drivers making a left turn in either direction. It shall not be
used for passing or travel by a driver except to make a left
turn. You may stop in this lane until it is safe to complete
the turn. When a street has a shared center turn lane, you
may not turn left from any other lane and you may not
drive in this lane.
Unmarked lane: When there are no signs or pavement
markings to control the use of lanes, drive just to the right
of the center of the road. Do not drive on the shoulder of
the road. The same rules for passing and turning on marked
roads apply with unmarked roads.
Roundabout lane: A roundabout or traffic circle is a
circular intersection. Vehicles travel to the right around a
center island while entering traffic yields the right-of-way to
circulating traffic. When you approach the roundabout, read
signs and roadway markers to help you navigate.
Before entering the roundabout, Colorado law requires
drivers to yield the right-of-way to the driver of a truck, bus,
emergency vehicle or recreational vehicle (large vehicle)
when entering, exiting or driving in a roundabout. The law
also requires when two drivers of large vehicles enter, exit
or drive in a roundabout at the same time, the driver on
the right must yield the right-of-way to the driver on the
left. As you approach a roundabout, if no large trucks are
present, you must yield to approaching traffic on the left.
Do not stop completely unless existing traffic prevents
you from merging. Check crosswalks for any pedestrians.
Yield to any pedestrians waiting to cross. As you enter
or leave a roundabout, you must yield to pedestrians or
bicyclists in any crosswalk and to any traffic already inside
the roundabout. Drive to the right and watch for directional
signs and signals. Once you are clear to proceed, merge
into the roundabout lane. To alert traffic of your intentions,
please use your turn signals when changing lanes and
exiting the roundabout.
Reversible lanes: Some travel lanes are designed to carry
traffic in one direction at certain times and in the opposite
direction at other times. These lanes are separated by a
barrier or marked by double-broken yellow lines. There
may be signs posted by the side of the road or overhead.
Sometimes special lights are used.
Diverging Diamond Interchange (DDI): A diverging
diamond interchange crosses traffic to the opposite
side of the road across an interchange so vehicles have
uninterrupted movements onto the freeway ramps. Left-turn
movements, which are a typical challenge with standard
Roundabout lane
11 Colorado Driver Handbook
four-way interchanges, are eliminated with a DDI, which
allows for fewer conflicts with other vehicles.
RIGHT-OF-WAY
Where drivers or pedestrians meet one another, and there
are no signs or signals to regulate traffic, there are rules
that say who must yield the right-of-way. These rules tell
drivers who proceeds first and who must wait in different
traffic situations.
The law states who must yield the right-of-way, but it does
not give anyone the right-of-way, even if your traffic signal
is green. You must yield the right-of-way to pedestrians,
bicyclists, and other drivers who are already in an intersection
you are approaching.
Pedestrians: When driving, you must always yield the right-
of-way to pedestrians. Be very watchful for children, seniors
and people with disabilities. Do not assume that pedestrians
can hear or see you and/or your vehicle or any visual or
audible crossing signals as some pedestrians may be deaf,
hard of hearing, deaf-blind or blind. Most blind or deaf-blind
people are easily recognized by the white cane they carry
and/or by their guide dog. Pedestrians have the right-of-way
at all intersections and crosswalks. You must come to a
complete stop and let the person pass safely.
Bicycles: Bicycles on the road are
considered vehicles and have many of the
same rights and responsibilities as motor
vehicles. Drivers must yield the right-of-way
to bicyclists in a designated bike lane when
merging with or crossing a bike lane to turn.
Bicyclists riding on a sidewalk or crosswalk
have the same rights and responsibilities as
pedestrians.
Four-way stop: You must yield the right-
of-way to the vehicle that reached the
intersection first. When more than one vehicle reaches
the intersection at the same time, the vehicle on the left
must yield the right-of-way and allow the vehicle on the
right to go first. Regardless of who has the right-of-way,
you are always responsible for avoiding a crash.
Uncontrolled intersection: An uncontrolled intersection
is an intersection that does not have control devices such
as stop signs or traffic lights. When more than one vehicle
reaches an uncontrolled intersection at the same time, the
vehicle on the left must yield the right-of-way to the vehicle
on the right and allow the vehicle on the right to go first.
Turning left: Before proceeding through a left turn,
always be sure to look for and yield to pedestrians in the
crosswalk and other smaller oncoming vehicles such as
bicyclists and motorcyclists and take time to properly judge
their speed and distance. You must yield to all oncoming
traffic, unless you have a green arrow or arrived first at a
four-way stop.
Changing lanes and passing: You must yield the right-of-
way to vehicles already occupying the lane you wish to enter
or use for passing. Do not change lanes if another vehicle
must slow down for you.
Merging: You must yield to all vehicles on the roadway you
are merging with. Do not merge if another vehicle must slow
down for you.
Reversing: You must yield the right-of-way to all vehicles
close enough to be a hazard.
Narrow mountain road: When vehicles meet on a steep,
narrow road that is not wide enough for two vehicles, the
vehicle going downhill must yield the right-of-way by backing
up to a wider place or by stopping, then leaving enough
space for the vehicle going uphill, except where it is more
practicable for the vehicle going uphill to return to a wider
space or turnout.
Emergency vehicles: You must yield the right-of-way to all
emergency vehicles using a siren, air horn and/ or flashing
red, blue, white or yellow lights. Where possible, you must
pull to the right edge of the road and come to a stop. If
you are in an intersection, drive through the intersection,
then pull over. If you are approaching an emergency
vehicle stopped along the side of the road, try to leave at
least one lane between your vehicle and the emergency
vehicle. If the road only has one lane on your side or you
cannot change lanes, slow down to a safe speed and use
care and caution as you pass. Unless directed otherwise
by emergency personnel or conditions prohibit the lane
change, you should slow down to:
● 25 MPH if the posted speed limit is 45 MPH or less
Or
● 20 MPH under the posted speed limit if the posted
speed limit is above 45 MPH
Maintenance vehicles: You must yield right of way to
service vehicles and maintenance equipment when in
use and flashing yellow and blue warning lights. Use
extra caution when approaching, overtaking or passing
maintenance vehicles.
Snow plows: Be especially cautious around snow plows
because their size and speed can create clouds of blowing
snow that can conceal the plow. It is illegal to pass an
authorized snow plow when it is working in a formation in
which the plows are staggered diagonally.
School bus: You must stop your vehicle at least 20 feet
before reaching a school bus that is stopped with its red lights
flashing, and you must stop until the lights stop flashing. You
must stop whether it is on your side of the road, the opposite
side of the road or at an intersection you are approaching.
You must remain stopped until the flashing red lights are no
longer flashing. Carefully watch for children near the school
bus and children crossing the roadway before proceeding.
You are not required to stop if there is a median or other
physical barrier separating the bus from your vehicle.
Transit buses: You must yield right-of-way to a transit bus if
it is signaling to enter a traffic lane and the yield sign on the
rear of the bus is illuminated.
Road work/Construction zone: When driving in a work/
construction zone, keep construction crews and fellow road
users safe by adjusting your lane position away from workers
and slowing down to navigate any obstacles or changes in
12 Colorado Driver Handbook
the flow of traffic with caution. Stay alert and prepared to
respond to any unpredictable events.
For safety reasons, normal speed limits may be reduced in
work/construction zones. Any reduced speed limits will be
clearly marked. Failure to follow the speed limit in a work/
construction zone can result in double fines.
SPEED
Speed is the greatest factor influencing the severity of a
crash. Many fatal collisions on Colorado highways involve
motorists driving to fast.
Limits: Speed limit signs show the maximum speed allowed
in ideal conditions. Some roads, such as freeways, have
minimum speed limits posted. Driving slower than the
minimum speed limit is a traffic violation, unless due to
road or weather conditions. It is important to slow down in
certain conditions, for example, during poor weather, or near
railroad tracks, pedestrians or bicyclists, animals, and school
buses. However, driving much slower than the posted speed
in normal conditions can affect the flow of traffic and create
unpredictable, potentially unsafe, situations.
Reduced speed zones: Regardless of the posted speed
limit, it may be necessary to reduce your speed to keep
yourself and others safe. Signs will show when a reduced
speed limit is in effect.
Unless otherwise posted, Colorado speed limits are
as follows:
● 20 mph on narrow, winding mountain highways and
blind curves
● 25 mph in any business district
● 30 mph in any residence district
● 40 mph on open mountain highways
● 45 mph for vehicles in the business of hauling trash
● 55 mph on urban interstate and highways
● 65-75 mph on designated rural interstate and highways
● City or towns may by ordinance adopt lower speed
limits in their jurisdictions.
Stopping distance: Stopping distance is the distance your
vehicle travels from the time you realize you must stop until
your vehicle actually comes to a stop. Many factors affect
your stopping distance including speed, the time it takes
you to recognize you need to stop, how quickly you react
and the time it takes for your brakes to slow and stop your
vehicle. Be alert and give yourself space behind other
motorists so you can assess well ahead of time when you
will need to stop. By slowing down or changing lanes, you
may not have to stop at all, and if you do, it can be a more
gradual and safer stop. Stopping suddenly is dangerous
and is often the result of a driver who was not paying
attention or trailing another motorist too closely. If you
brake too quickly, you could skid, lose control of your
vehicle, and/or make it difficult for drivers behind you to
stop without hitting you.
According to the National Safety Council, a lightweight
passenger car traveling 55 mph can stop in about 200 feet.
Other vehicles require different stopping distances. The chart
below shows stopping distances, under ideal conditions.
TURNING
Completing a turn properly requires you to signal for an
appropriate amount of time before to the turn, search
for hazards or other road users crossing your path, turn
into and from the correct lane, and turn in a correct path.
Accelerate out of turns until you reach the speed limit or
flow of traffic.
Signaling: Failure to signal is a traffic violation. Before
making any turn, whether onto another roadway, into a
parking lot, into another lane of traffic, or leaving a
parked position, it is extremely important that you signal.
Your signal lets other drivers, bicyclists and pedestrians
know your intentions. In urban areas, you must signal
continuously for 100 feet before making a turn or lane
change. On four lane highways where the posted speed
limit is faster than 40 mph, you must signal for 200 feet
before making a turn or lane change. A typical rule of
thumb is to have your turn signal on for at least 3 seconds
before making a turn or changing lanes. If your vehicle’s
turn signals do not work, you
must use hand signals. End
your hand signal before
starting to turn so that you
can complete the turn with
both hands on the wheel.
Turning from the proper lane: When turning right you
should turn from the right most part of your lane and
as close to the curb as possible. When turning left you
should be in the left side of your lane. To make a right
turn, you must begin in the right most lane. In locations
where turning from more than one lane is permitted, traffic
signs, signals and/or lane markings will clearly indicate
correct turning lanes.
Turning in a correct path: Complete your turn in the
center of the correct lane on the new roadway — usually
the lane closest to you on your side of the street. In
intersections with multiple turn lanes, use the white lines
13 Colorado Driver Handbook
in the intersection to identify the correct path. Avoid
short turns (cutting corners), wide turns, late turns and
straddling lanes.
Left turns: Crashes are very common during left turns
as drivers must see, judge and navigate oncoming
traffic and pedestrians also navigating the intersection.
When turning left, you should wait at the stop line or
crosswalk until there is enough of a gap in oncoming
traffic large enough to allow you to complete your turn
safely. Always look for pedestrians and other smaller
oncoming vehicles such as bicyclists and motorcyclists
and take time to properly judge their speed and distance
before turning left. Pulling into the intersection while
waiting to turn left blocks the intersection for emergency
vehicles, limits visibility for oncoming traffic and puts
you in a position to get in a collision if the light changes
and oncoming traffic runs the red light while you turn.
Never turn the front wheels toward the left while you
are waiting to turn. If you are rear ended, you would be
pushed into oncoming traffic.
U-turns: A U-turn is a turn made in a U shape so as
to face in the opposite direction on the same roadway.
U-turns are forbidden unless they can be made without
endangering other motorists and their passengers, and
are not allowed in locations marked by No U-turn signs.
If you cannot safely make a U-turn, continue to the next
street or turn around area. Never try to make a sudden
U-turn in front of traffic traveling in either direction.
Two-point turnabout: In this type of turn, a street, alley
or driveway is used to reverse the direction you are
traveling when it is not practical or possible to drive
around a block.
Reverse two-point turnabout:
Signal your intention to turn right.
Stop and check traffic to the sides
and rear of your vehicle. Move
back until the rear bumper of your
vehicle reaches the near edge of
the driveway. While backing
slowly, steer rapidly all the way to
the right. As your vehicle centers
in the driveway, straighten the
wheels and stop. Shift to drive
and check in both directions; if clear, signal and turn left
into the proper lane and accelerate.
Forward two-point turnabout:
Check your mirrors and signal your
intention to turn left. Move close to
the center of the road and turn into
the driveway or alley as near as
possible to the right side. Stop as
the rear of your vehicle clears the
curb or the driveway’s edge. Check
in all directions for traffic, signal
a right turn and shift to reverse.
When clear, move back slowly
while turning the steering wheel
quickly all the way to the right. As your vehicle centers in
the nearest lane, straighten the wheels and stop. Then,
shift to drive, cancel the right signal and move forward.
Three-point turnabout: This type of turnabout is used to
reverse direction on a roadway that is too narrow to allow
completion of a U-turn and where there is no way to go
around the block or utilize a two-point turn. Only use a three-
point turnabout on a two-lane roadway.
To perform a three-point turnabout: Check the mirrors and
activate the right turn signal to communicate your intention
to pull off to the right side of the road. Stop on the right side
of the road.
Activate your left turn signal at least 200 feet before the turn,
or a minimum of three seconds, and check traffic and any
blind spots. When traffic is clear, turn hard left toward the
other side of the road. Stop when you have reached the
other side.
Check traffic and blind spots on both sides, then turn the
wheel sharply to the right and reverse to the other side of the
road. When traffic is clear, turn hard right to the other side of
the road and stop. Place your vehicle in drive, activate the
left turn signal and check traffic and blind spots. When traffic
is clear, turn sharply to the left and drive forward into the
right lane of traffic heading in the new direction. Make sure
your turn signal has canceled. Continue driving straight in
the new direction.
PARKING
Leave the vehicle in park if it has an automatic transmission.
If it’s a standard transmission, leave the vehicle in low gear
when headed uphill and in reverse gear when headed
downhill. Set the emergency brake and remember to remove
the ignition key when leaving the vehicle.
There are several locations where you can not to park a
vehicle. These include:
● On a crosswalk, sidewalk, bridge, elevated structure,
railroad tracks or any controlled access highway
● Within 30 feet of a traffic signal, stop sign, railroad
crossing or within 15 feet of a fire hydrant
● Within an intersection, tunnel, runaway truck ramp, on/
off ramp or blocking a driveway
● In a bike lane
Parallel parking: Stop even with the vehicle ahead. Turn the
wheel sharply right and back slowly toward the vehicle behind.
When clear of the vehicle ahead, turn the wheel sharply to
the left and back slowly toward the vehicle behind. Turn the
wheel sharply right and pull towards the curb in the center of
the parking space.
To pull away from a parallel parked position, activate your
signal, check your mirrors and blind spots, and pull away
when safe.
1 2 3 4 5
14 Colorado Driver Handbook
Where parallel parking is permitted, your vehicle must
be within 12 inches of the curb or as close as possible to
the outside edge of the shoulder, so traffic will not be
blocked or slowed.
Downhill: When you stop your
vehicle while headed downhill, turn
your front wheels toward the curb.
Let your vehicle roll slowly until the
front tire rests against the curb using
it as a block.
Uphill: When
headed uphill
where there is a
curb, turn the front
wheels away from
the curb and let
your vehicle roll
backwards slowly
until the rear part of the front wheel rests
against the curb using it as a block.
No curb: When headed uphill without a
curb, turn your front wheels to the right
so that if your vehicle moves, it will roll
off the highway, not into the roadway.
When headed downhill with no curb, also turn your wheels
to the right.
FREEWAY DRIVING
High-speed roadways such as freeways can be dangerous
due to the speeds at which people are driving. It’s important
to be aware of your surroundings at all times when driving,
especially on freeways.
Entering the freeway: High-speed roadways generally
have acceleration ramps so you can build up speed. When
entering a freeway from an on-ramp, try to increase your
speed to match freeway traffic.
Before entering a highway from a side entrance ramp, signal
properly, look for an opening in traffic, accelerate to the
speed of traffic and merge into traffic when it is safe.
Do not merge into traffic until the solid white line has ended.
Do not stop in the acceleration lane unless absolutely
necessary. Remember, you must yield the right-of-way to
freeway traffic.
Some freeway entrance ramps have traffic signals which
make merging easier and improves traffic flow. On metered
ramps, you must stop and wait to be released on a green
light to enter the freeway.
Freeway driving: Freeway driving is different from
driving on a regular street or a highway, mainly because
it is designed to move a greater volume of traffic at faster
speeds. It is important to be aware of your surroundings at
all times.
● Drive in the rightmost lane when you are driving
slower than the normal speed.
● The passing lane (the leftmost lane) is reserved for
passing vehicles in non-passing lanes, left turns and
conditions where the traffic volume does not allow
merging into non-passing lanes.
● Move over, if it is safe to do so, when approaching a
merge area to make room for vehicles entering the
freeway.
● Observe traffic ahead of, around and behind you. Be
aware of vehicles traveling in your blind spots.
● Plan ahead, use directional and guidance signs.
● Signal at least 200 feet before you change lanes,
avoid frequent lane changes.
● Do not drive across, over or within any median or island.
Downhill parking
No Curb parking
Uphill parking
15 Colorado Driver Handbook
Leaving the freeway: When exiting the freeway, use
the deceleration lane, which is designed to allow you to
slow down before reaching the exit ramp. Activate your
turn signal 200 feet before the beginning of the
deceleration lane. Maintain your speed until you enter
the deceleration lane, then slow down to the speed
advised for the exit ramp.
Remember these important tips when exiting a freeway:
● Keep your speed consistent with the flow of traffic while
on the freeway.
● Do not exit at the last second.
● Slow down after turning into the deceleration lane and
do not exceed the posted speed limit for the exit ramp.
CHANGING LANES
Changing lanes includes: changing from one lane to
another, passing another vehicle, merging onto a roadway
from an entrance ramp and entering the roadway from the
curb or shoulder. You must check for hazards or vehicles in
the lane you want to enter. This means you must check for
traffic ahead, to the side and behind your vehicle before you
change lanes.
Be aware of any blind spots, which are areas you cannot
see in your rear view or side view mirrors and are located
slightly to the sides and the rear of your vehicle.
When changing lanes, you should:
● Activate your turn signal. Leave it active for a minimum
of 3 seconds or 200 feet before leaving your lane.
● Check for possible hazards or vehicles in the lane you
want to enter.
○ Check traffic ahead.
○ Use your mirrors to check for traffic behind your
vehicle.
○ Look over your shoulder to check your blind spot,
which is the area slightly to the rear and side of your
vehicle that you cannot see in your mirrors.
○ When it is safe, move into the new lane.
○ After you are centered in the new lane check the
mirror for traffic behind you.
● Deactivate your turn signal within 3 seconds of
completing the lane change.
PASSING
Signs and road markings indicate areas where you are
and are not allowed to pass another vehicle. Typically, you
should pass on the left. You are only allowed to pass on
the right on one way streets and on roadways with two or
more lanes of travel in each direction. You are not allowed
to pass another vehicle by driving off of the pavement or
on the shoulder of a roadway.
Before deciding to pass another vehicle, including
bicyclists, judge whether you will have enough time
and room to pass safely by observing the traffic ahead,
beside and behind you. If you have enough time and
space to pass, begin by making a lane change, as
directed above. Accelerate past the vehicle you wish to
pass. When you can see both headlights of the vehicle
you passed in the rearview mirror, change one lane to
get back into your previous lane.
If passing a bicyclist, you must have a minimum
of three feet of space between the outermost part
of your vehicle, including any projections such as
mirrors or trailers, and the bicyclist. You can briefly
cross a solid yellow line when there is no oncoming
traffic and you have a clear view ahead. Be aware of
wind blasts that can knock a bicyclist off their bike
and safely pass by giving them more space on rural
roadways, when operating a large vehicle or driving
in windy conditions.
Do not count on being able to pass several vehicles at once.
To be safe, only pass one vehicle at a time. Do not pass:
● If you cannot safely return to the right-hand side
before coming within 200 feet of an oncoming
vehicle, including a bicyclist in the oncoming lane
or shoulder.
● If you cannot safely return to the right-hand side before
a solid yellow line begins.
How to change lanes while passing another vehicle
16 Colorado Driver Handbook
● On a curve or hill where your view is obstructed.
● Within 100 feet of an intersection or railroad crossing.
● Within 100 feet of any bridge, viaduct or tunnel when
your view is obstructed.
● A bicyclist unless you can allow a minimum three foot
buffer zone between the bicyclist and your vehicle,
including any projections such as mirrors. If passing
a bicyclist, you may briefly cross a solid yellow when
there is no oncoming traffic and you have a clear
view ahead.
Please note, the following behaviors are illegal when passing:
● Pass in any marked no-passing zones.
● Exceed the posted speed limit when passing.
● Pass a school bus with flashing red lights and its stop
arm extended.
● Pass within 100 feet of any intersection.
● Pass within 100 feet of any railroad crossing.
● Pass on any hill, curve or bridge where vision is obstructed.
HILLS AND CURVES
Hills and curves can hide obstructions in the road, even
on familiar roads. Be prepared to stop when approaching
a curve or hill that obscures your view of the road.
If you cannot see over the top of a hill, slow down to an
appropriate speed until you crest the hill and regain sight of
the roadway.
Always slow down before entering a curve. If you go through
a curve too fast, your tires will not be able to grip the road
and your vehicle will skid. Begin your acceleration only after
reaching the middle of the curve.
NIGHT DRIVING
Driving at dawn and dusk can be more hazardous than
driving during the day. This is due to limited visibility, the
limited area illuminated by your headlights and the blinding
effect of headlights with fog lights. Colorado law requires you
to drive with your headlights on from sunset to sunrise or
when visibility is less than 1,000 feet. One way to reduce
risk is to drive with your low beam or daylight running lights
on at all times.
Any vehicle parked alongside the roadway, whether attended
or not, must have parking lights turned on from sunset to
sunrise or whenever visibility is less than 1,000 feet. Do not
drive with only your parking lights on.
Tips for driving at night:
● Use your high beam lights when driving in rural
areas and on open highways away from urban and
metropolitan areas.
● If you are driving with your high beam lights on or your
low beam lights with fog lights on, you must dim them
before coming within 500 feet of any oncoming vehicle
so the oncoming driver is not blinded by the glare.
● When following another vehicle, you must use your
low beam lights, with your fog lights off, if you are
within 200 feet of the vehicle ahead of you.
● Never look directly into an approaching car’s
headlights. As the vehicle draws near, drop your sight
below the glare and use the painted edge lines to
guide your vehicle. Lift your gaze back up when you
have passed the oncoming vehicle.
● Use your low beam lights and/or fog lights when
driving through fog at night for better visibility. Using
high beam lights in these conditions is like shining
your lights on a mirror.
● Increase your following distance when driving at night
or on unfamiliar roads.
● Be alert to vehicles, including bicyclists, traveling after
sunset without their lights on.
● Slow down and stay alert in poorly lit areas where
vehicles, pedestrians, bicyclists or animals might be
traveling.
● Look for the single front light of bicyclists and
motorcyclists traveling at night.
WEATHER
Weather can significantly affect how your vehicle drives
regardless of whether your vehicle has front wheel, rear
wheel, four-wheel drive or all-wheel drive. In weather
conditions such as rain, fog, ice, high winds and dust, the
two most important actions you can take are to slow your
speed and increase your following distance. Some additional
inclement weather driving tips include:
● Use your headlights if visibility is poor.
● If the highway is wet or icy, do not use cruise control.
● Do not drive through large bodies of standing water on
the road. If you see a flooded roadway, find another
route to get to your destination.
In wet weather, your tires can begin to ride on the water that
is on top of the road pavement. This is called hydroplaning
and can cause complete loss of traction and control of
steering. Tires that have more wear can be at increased risk
so be sure to check your tires’ tread depth regularly. If it feels
like your tires have lost traction, or contact with the surface
of the road:
● Take your foot off the gas pedal to allow the vehicle to
slow down.
● Slowly begin steering in the direction you are
hydroplaning until you have control. (although this
seems contradictory, this actually helps your tires to
realign with your vehicle so they are both going the
same direction)
● Steering needs to be slow. Don’t jerk the wheel or you
could flip your car due to overcorrecting.
● Do not try to stop or turn until your tires are gripping the
road again.
SNOW AND ICE
Streets and highways covered with snow, snowpack or
ice are extremely hazardous. They are most hazardous
17 Colorado Driver Handbook
when the snow or ice begins to melt. When the road is
slippery, your tires do not grip as well and it will take
longer to stop. Overpasses, bridges, shaded areas and
snow packed portions of the road can be icy even when
other pavement is not. If you lose traction take your foot
off both the brake and the accelerator pedal and then turn
the front wheels in the direction you want the car to go.
Drivers should be extra careful when approaching or
passing a snowplow or other snow removal equipment
that has flashing yellow lights and is clearing snow. It is
illegal to pass a city, county or state-operated snow plow
while it’s working with its yellow lights flashing and is
driving in tandem with one or more other snow plows.
SEASONAL DRIVING
● Vehicles with 4-wheel drive have increased traction, but
they cannot stop any sooner than a conventional car.
● Whenever your car starts to skid, take your foot off both
the brake and the accelerator pedal.
● Make sure your tires have good tread for adequate
traction. In winter, chains, snow tires or alternative
traction devices are preferable and may be required on
highways. (However, remember that even chains and
snow tires will slip on slick pavement).
● Make sure your brakes are in good condition and
properly adjusted so that the braking power of each
wheel is uniform.
● If you have anti-lock brakes: If you begin to skid, let up
on the accelerator and push on the brake, then turn the
front wheels in the direction you want the car to go.
● If you don’t have anti-lock, use threshold braking
when skidding or in slippery conditions. Apply brake
pressure to a point just short of locking up the brakes.
Note: You can use threshold braking on a vehicle with
anti-lock brakes, but you cannot use anti-lock braking
techniques on a vehicle without an anti-lock brake
system (ABS).
● Keep the windows clear by ensuring the defrosters
and windshield wipers are working properly. Use a
good window scraper to remove all ice, snow and frost
even if you are just traveling a short distance. Fogging
or condensation on the inside of the windshield can
quickly be removed by opening a window.
● Be alert for snow plows and sanding trucks. They use
flashing yellow and blue lights as a warning for you to
use extreme caution when approaching or passing them.
● Maintain an extra large space between you and the
vehicle ahead, especially when driving in conditions
that affect stopping distance such as snow and ice
and don’t forget to slow down.
● Give pedestrians and bicyclists extra space because
they might need to maneuver around snow or ice on
sidewalks or in the roadway.
MOUNTAIN DRIVING
Mountain driving can be very different from normal driving
conditions. As a driver, you should be aware of steep hills,
changing weather, bicyclists, wildlife and rocks on the
roadway. Shift to lower gears to control speeds when driving
down steep hills or mountains.
It is illegal to use the oncoming travel lane to pass others if
you are approaching the crest of a hill, a curve or in any other
situation where visibility of oncoming traffic is obstructed.
Be prepared for intersections hidden by trees, brush or crops
and for animals on or near the roadway. If your vehicle has
difficulty traveling up steep roadways, pull off the road at the
first place you can do so safely or stay in the right lane to
allow other vehicles to pass. Remember, vehicles going
uphill have the right-of-way over vehicles going downhill.
RURAL DRIVING
Rural highways are the most dangerous roads and have
the highest fatality rate per mile driven of any roads in the
U.S. When driving in rural areas, there are some special
situations that require your attention:
● Rural roads can have a lot of sharp curves, blind
curves, steep hills and dips.
● Rural roads may not have adequate guide signs, and
some of the signs might be hidden by trees or bushes.
● Rural roads are narrow, which can make it difficult to
pass other vehicles.
● Many rural roads have no shoulders.
● Some rural roads have no guard rails.
● There are blind driveways, T-intersections, side streets
that are not visible due to trees, crops and bushes.
● There may be obstacles on the road such as
rocks, debris, animals, farm vehicle crossings,
unmarked railroad crossings and slow moving or
smaller vehicles like bicycles.
● Rural road pavements are usually rough and may be in
need of maintenance. In some areas, the rural roads
are unpaved (dirt or gravel) resulting in less traction.
● Washboarding, which is a series of potholes that can
affect steering and vehicle control, can often be found
on gravel roads.
Roads with potholes may cause your vehicle to bounce
or jolt as you drive over them and can cause your tires to
lose traction.
Many bicyclist fatalities happen on rural roads due to
higher speeds. Stay alert and watch for bicyclists who
might be riding on the shoulder, or riding in the travel
lane if there is no shoulder or it has debris. Slower
speeds and more than the required three feet of passing
distance are also advised when passing bicyclists on
rural roads due to dangerous wind blasts that can cause
vehicles to hit bicyclists.
CONSTRUCTION ZONES
Drivers regularly encounter roadway construction and
maintenance projects, which are designed to improve the
safety and efficiency of our transportation systems.
Every construction or maintenance project creates a work
For more information on traction and
chain laws, please visit the Colorado
Department of Transportation’s website.
18 Colorado Driver Handbook
zone with equipment, workers and, in some cases, daily
changes to the routes. Signs, cones and other warning
devices are placed before construction projects and hazards
to warn you about the changing conditions. These changes
require you to stay alert and focused at all times while
driving. Be prepared to stop suddenly and do not tailgate in
a work zone.
Large construction projects can have complex work zones with
flaggers, portable concrete barriers, complicated directional
signing and reduced speed limits to safely direct you through
the work zone.
Reduced speed limits are critical because they give
drivers more time to understand and react to the
information and allow more time to safely drive through
the complex assortment of devices, workers and
equipment. Watch for pedestrians and bicyclists who are
also navigating construction and whose safest routes may
be compromised.
Unfortunately, there is no way to completely separate
drivers from work zone hazards leaving construction crews
unprotected. Not only are these workers dealing with
construction dangers associated with heavy equipment,
excavation, power lines and other activities but they are
constantly on guard for drivers that may stray into the
work area.
Increased police enforcement is routinely added to
construction projects to ensure drivers understand the
importance of complying with work zone signs and
directions. Like school zones, the fines are doubled in
work zones.
Remember, if you encounter a work zone, for your own
safety and the safety of the workers:
● Pay attention, use extra caution and stay focused on
the driving task.
● Obey construction signs, including work zone speed
limit signs, and flagger instructions.
● Watch the vehicle in front of you — most work
zone crashes are rear-end collisions due to an
inattentive driver.
Your safety, your passengers’ safety, and the safety of these
workers depends on you.
SAFE DRIVING TIPS
The purpose of this handbook is to keep you and others
safe. If you obey every roadway rule and regulation, your
chances of being involved in collisions will be greatly
reduced. However, you can’t be certain that other drivers
are following every rule and regulation. You should
always try to drive calmly and ignore aggressive drivers.
It is important that you become a defensive driver.
Defensive driving protects you and others from unsafe
and unexpected driving situations.
Buckle up: Ensure all people in the vehicle fasten their seat
belts to help keep everyone safe in the event of a crash.
Using a cell phone while driving: Colorado law prohibits
drivers from using a mobile device while driving, unless
it is to contact law enforcement, the fire department, if it
is an emergency or they are doing so with the use of a
hands-free accessory. Colorado law also prohibits the use
of mobile devices for text messaging while driving unless
it is to contact law enforcement, the fire department or it is
an emergency.
Steering: Keep both hands on the steering wheel. The most
effective hand positions are 8 o’clock and 4 o’clock or 9
o’clock and 3 o’clock. When turning, the preferred methods
are the “hand-over-hand” or “push-pull-slide” methods. Do
not turn the wheel with the palm of your hand or let it slide
through your fingers after making a turn.
Scanning: To be a good driver you must know what is
happening around your vehicle. You must look ahead, to
the sides, and behind the vehicle. Always look left, right
and then left again when turning, driving through or entering
an intersection. Scanning helps you see conditions ahead,
such as vehicles and pedestrians that may be on or entering
the road, warning signs and signs giving you directions. Be
sure to look for smaller road users as you scan, including
pedestrians, bicyclists and motorcyclists.
Look ahead: In order to avoid last-minute braking or the
need to turn abruptly, you should look down the road
at least 10 seconds ahead of your vehicle (city — one
block, open road — half a mile). By looking well ahead
and being ready to stop or change lanes, you can drive
more safely, save on fuel and help keep traffic moving at
a steady pace.
Look to the sides: As other vehicles or pedestrians
might cross or enter your path at any time, you
should be looking for them on both sides and beyond
the curb.
Look behind: You must check traffic behind you in
your rear view mirror every 5 to 8 seconds. This is the
only way to know if someone is following too closely or
coming up too quickly, and it will give you time to react.
You need to check more often when traffic is heavy. It
is very important to look behind you when you change
lanes, slow down, back up, exit an intersection or drive
down a long or steep hill.
Following another vehicle: Following the vehicle in
front of you too closely limits your vision of the road and
does not allow you enough time to react to avoid a crash.
Remember to stay aware of the vehicle in front of you and
to maintain an adequate distance between your vehicle
and theirs.
Three-second rule: Under normal conditions, use
the three-second rule to gauge how much space you
should leave between your vehicle and the vehicle in
front of you. Watch the vehicle ahead of you; when
it passes a reference point (such as a mile marker,
sign or telephone pole) then count “one-thousand-one,
one-thousand-two, one-thousand-three.” If you pass
the reference point before you finish counting, you are
following too closely.