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GUIDE SIGNS
These signs are square or rectangular, and are green or brown with white
lettering. They show direction and distance to various locations such as
cities, airports, and state lines, or to special areas such as national parks,
historical areas, and museums.
SERVICE SIGNS
These signs are square or rectangular, and are blue with white letters or
symbols. They show the location of various services, such as rest areas,
gas stations, campgrounds, and hospitals.
ROUTE SIGNS
The shape of route signs indicates the type of roadway: interstate, United
States, state, or county. When planning a trip, use a highway map to
determine your route. During the trip, follow the route signs. This will help
you so you will not get lost.
North-south routes are identified by odd numbers. East-west roads are
identified by even numbers. Interstate highways that loop around cities are
identified by three-digit even numbers. Roadways that direct traffic into a
city’s road system (called “spurs”) are identified by three-digit odd numbers.
Understanding exit numbers is easy when you know interstates traveling
west/east are numbered starting from the west and going east. This means
exit numbers start at zero and increase as you drive east. Likewise, if you
come from the east, the numbers will decrease to the west. Interstates that
travel north/south have their exits numbered beginning at the south point
and increasing north. If you enter the state from the north and drive south,
then the exit numbers decrease.
EMERGENCY REFERENCE MARKERS
Emergency reference markers are mile markers placed along the outside
shoulder to mark the edge of the roadway and convey information to
drivers about their location on the interstate for navigation and emergency
situations. The reference markers are located every two-tenths of a mile,
so motorists will always be in sight of a sign. They tell the direction of travel
and route number.
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Your highest duty as a motorist is to drive your vehicle carefully and prudently.
Your speed and manner of driving must create a safe environment for yourself
and other road users, including pedestrians, cyclists, and other motorists.
RIGHT-OF-WAY
Where vehicles or pedestrians are likely to 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 goes first and who must
wait in different traffic situations.
The law says who must yield the right-of-way; it does not give any driver
the right-of-way. You must do everything you can to prevent striking a
pedestrian or another vehicle, regardless of the circumstances.
PASSING
Passing is a dangerous maneuver where the dangers are compounded
by intersections, other vehicles within an intersection and two-lane roads
(Refer to No Passing Zones in Chapter 3).
If you are caught speeding or passing in a construction zone or work zone on
Missouri state roadways, you could be fined a minimum of $250 for the first
offense and a minimum of $300 for a second or subsequent offense in addition
to any other fine authorized by law according to Section 304.582, RSMo.
Use the same care when passing a pedestrian or cyclist as when passing a
motor vehicle. You may need to slow down and wait for a safe opportunity to
pass a pedestrian or cyclist, just as you would for any other slow-moving traffic.
Passing on the Right
The driver of a motor vehicle may overtake and pass to the right of another
vehicle only under the following conditions:
• When the vehicle overtaken is making or about to make a left turn;
• Upon a city street with unobstructed pavement of sufficient width for two
or more lines of vehicles in each direction;
• Upon a one-way street;
• Upon any highway outside of a city with unobstructed pavement of
sufficient width and clearly marked for four or more lanes of traffic.
In no event shall such movement be made by driving off the paved or
main traveled portion of the roadway (shoulder).
Passing on the Left
No vehicle shall at any time be driven to the left side of the roadway under
the following conditions:
• When approaching the crest of a grade or upon a curve of the highway where
the driver’s view is obstructed within such distance as to create a hazard in
the event another vehicle might approach from the opposite direction;
• When the view is obstructed upon approaching within one hundred feet
of any bridge, viaduct, or tunnel;
• When approaching within one hundred feet of or at any intersection or
railroad grade crossing; or
• When there is a solid yellow line.
CHAPTER 4 — RULES OF THE ROAD
INTERSECTIONS
The following right-of-way rules apply at intersections:
• Drivers must yield where necessary to avoid striking pedestrians who are
legally crossing the road.
• Drivers crossing a sidewalk, entering or exiting a driveway, alley, or
parking lot must yield to pedestrians. It is illegal to drive on a sidewalk
except to cross.
• Drivers turning left must yield to oncoming vehicles going straight.
• At a four-way stop, the driver reaching the intersection first may proceed
before the other drivers (after coming to a complete stop).
• Drivers entering a road from a driveway, alley, or roadside must yield to
vehicles already on the main road.
• At an intersection where there is no stop sign or traffic signal (with the
exception of roundabouts), drivers must yield to vehicles coming from the
right.
• When approaching a roundabout intersection, always yield to traffic in
the circle and pedestrians in the crosswalks. Wait for a gap in traffic
before entering.
EMERGENCY VEHICLES
You must yield the right-of-way to police, fire, ambulance, or any other
emergency vehicles using a siren or air horn, and a red or blue flashing light.
Pull over to the right edge of the road, or as near to the right as possible,
when you see or hear an emergency vehicle approaching from any direction.
If you are in an intersection, drive through the intersection before you pull
over. Remain stopped until the emergency vehicle passes. Follow any
instructions given over the emergency vehicle’s loudspeaker. Emergency
vehicles may follow each other so proceed only when the way is clear.
When approaching a stationary emergency vehicle displaying lighted red or
red and blue lights, you must:
• Proceed with caution, and if it is safe to do so, make a lane change
into a lane not adjacent to the stationary vehicle (if on a roadway having
at least four lanes with not less than two lanes proceeding in the same
direction as the approaching vehicle); or
• Proceed with due caution and reduce the speed of the vehicle,
maintaining a safe speed for road conditions, if changing lanes would be
unsafe or impossible.
For more information regarding the “Move Over Law” see page 116.
SCHOOL BUSES
When a school bus stops to load or unload school children, the driver
activates the mechanical and electrical signaling devices to notify other
drivers of an impending stop. Amber warning lights will flash 500 feet
before the bus comes to a designated stop. When the school bus is
stopped, the alternate flashing red lights and the stop signal arm are
activated. Oncoming and following traffic must stop before they reach the
bus when these signals are activated. You must stop:
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