[Prior Code, § 300.010]
For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ALL-TERRAIN VEHICLE
Any motorized vehicle manufactured and used exclusively for off-highway use which is 50 inches or less in width, with an unladen dry weight of 600 pounds or less traveling on three, four or more low pressure tires, with a seat designed to be straddled by the operator and handlebars for steering control.
ALLEY or ALLEYWAY
Any street with a roadway of less than 20 feet in width.
AUTHORIZED EMERGENCY VEHICLE
A vehicle publicly owned and operated as an ambulance or a vehicle publicly owned and operated by the state highway patrol, Police or Fire Department, sheriff or constable or deputy sheriff, traffic officer or any privately owned vehicle operated as an ambulance when responding to emergency calls.
BUSINESS DISTRICT
The territory contiguous to and including a highway when within any 600 feet along the highway there are buildings in use for business or industrial purposes, including but not limited to hotels, banks or office buildings, railroad stations and public buildings which occupy at least 300 feet of frontage on one side or 300 feet collectively on both sides of the highway.
CENTRAL BUSINESS (OR TRAFFIC) DISTRICT
All streets and portions of streets within the area described by City ordinance as such.
COMMERCIAL VEHICLE
Every vehicle designed, maintained or used primarily for the transportation of property.
CONTROLLED ACCESS HIGHWAY
Every highway, street or roadway in respect to which owners or occupants of abutting lands and other persons have no legal right of access to or from the same except at such points only and in such manner as may be determined by the public authority having jurisdiction over the highway, street or roadway.
CROSSWALK
(1) 
The part of a roadway at an intersection included within the connections of the lateral lines of the sidewalks on opposite sides of the highway measured from the curbs, or in the absence of curbs from the edges of the traversable roadway; or
(2) 
Any portion of a roadway at an intersection or elsewhere distinctly indicated for pedestrian crossing by lines or other markings on the surface.
CURB LOADING ZONE
A space adjacent to a curb reserved for the exclusive use of vehicles during the loading or unloading of passengers or materials.
DRIVE, DRIVING, OPERATES or OPERATING
Physically driving or operating or being in actual physical control of a motor vehicle.
DRIVER
Every person who drives or is in actual physical control of a vehicle.
FREIGHT CURB LOADING ZONE
A space adjacent to a curb for the exclusive use of vehicles during the loading or unloading of freight or passengers.
HIGHWAY
The entire width between the boundary lines of every way publicly maintained when any part thereof is open to the use of the public for purposes of vehicular travel.
INTERSECTION
(1) 
The area embraced within the prolongation or connection of the lateral curb lines, or, if none, then the lateral boundary lines of the roadways of two highways which join one another at, or approximately at, right angles, or the area within which vehicles traveling upon different highways joining at any other angle may come in conflict; or
(2) 
Where a highway includes two roadways 30 feet or more apart, then every crossing of each roadway of such divided highway by an intersecting highway shall be regarded as a separate intersection. In the event such intersecting highway also includes two roadways 30 feet or more apart, then every crossing of two roadways of such highways shall be regarded as a separate intersection.
INTOXICATED CONDITION
A person is in an intoxicated condition when he or she is under the influence of alcohol, a controlled substance or drug or any combination thereof.
LAND ROADWAY
A roadway which is divided into two or more clearly marked lanes for vehicular traffic.
LAW ENFORCEMENT OFFICER or ARRESTING OFFICER
Includes the definition of law enforcement officer in RSMo. § 556.061, Subd. (17) (As of 1-1-2017 RSMo. § 556.061 Subd. (32)).
MOTOR VEHICLE
Any self-propelled vehicle not operated exclusively upon tracks, except farm tractors.
MOTORCYCLE
Every motor vehicle having a seat or saddle for the use of the rider and designed to travel on not more than three wheels in contact with the ground, but excluding a tractor.
OFFICIAL TRAFFIC-CONTROL DEVICES
All signs, signals, markings and devices not inconsistent with this Traffic Code placed or erected by authority of a public body or official having jurisdiction, for the purpose of regulating, warning or guiding traffic.
PARK or PARKING
The standing of a vehicle, whether occupied or not, otherwise than temporarily for the purpose of and while actually engaged in loading or unloading merchandise or passengers.
PASSENGER CURB LOADING ZONE
A place adjacent to a curb reserved for the exclusive use of vehicles during the loading or unloading of passengers.
PEDESTRIAN
Any person afoot.
PERSON
Every natural PERSON, firm, copartnership, association or corporation.
POLICE OFFICER
Every officer of the Police Department or any officer authorized to direct or regulate traffic or to make arrests for violations of traffic regulations.
PRIVATE ROAD OR DRIVEWAY
Every way or place in private ownership and used for vehicular travel by the owner and those having express or implied permission from the owner, but not by other persons.
RAILROAD
A carrier of persons or property upon cars, other than streetcars, operated upon stationary rails.
RAILROAD TRAIN
A steam engine, electric or other motor, with or without cars coupled thereto, operated upon rails, except streetcars.
RESIDENCE DISTRICT
The territory contiguous to and including a highway not comprising a business district when the property on such highway for a distance of 300 feet or more is in the main improved with residences or residences and buildings in use for business.
RIGHT-OF-WAY
The right of one vehicle or pedestrian to proceed in a lawful manner in preference to another vehicle or pedestrian approaching under such circumstances of direction, speed and proximity as to give rise to danger of collision unless one grants procedure to the other.
ROADWAY
The portion of a highway improved, designed or ordinarily used for vehicular travel, exclusive of the berm or shoulder. In the event a highway includes two or more separate ROADWAYS the term ROADWAY as used herein shall refer to any such ROADWAY separately but not to all such ROADWAYS collectively.
SAFETY ZONE
The area or space officially set apart within a roadway for the exclusive use of pedestrians and which is protected or is so marked or indicated by adequate signs as to be plainly visible at all times while set apart as a SAFETY ZONE.
SIDEWALK
The portion of a street between the curb lines, or the lateral lines of a roadway, and the adjacent property lines, intended for use of pedestrians.
STAND or STANDING
The halting of a vehicle, whether occupied or not, otherwise than for the purpose of and while actually engaged in receiving or discharging passengers.
STATE HIGHWAY
A highway maintained by the state as a part of the STATE HIGHWAY system.
STOP
When required, complete cessation from movement.
STOP or STOPPING
When prohibited, any halting even momentarily of a vehicle, whether occupied or not, except when necessary to avoid conflict with other traffic or in compliance with the directions of a police officer or traffic-control sign or signal.
STREET or HIGHWAY
The entire width between the lines of every way publicly maintained when any part thereof is open to the uses of the public for purposes of vehicular travel.
THROUGH HIGHWAY
Every highway or portion thereof on which vehicular traffic is given preferential right-of-way, and at the entrances to which vehicular traffic from intersecting highways is required by law to yield right-of-way to vehicles on such THROUGH HIGHWAY in obedience to either a stop sign or a yield sign, when such signs are erected as provided in this Traffic Code.
TRAFFIC
Pedestrians, ridden or herded animals, vehicles, streetcars and other conveyances either singly or together while using any highway for purposes of travel.
TRAFFIC DIVISION
The TRAFFIC DIVISION of the Police Department of the City, or in the event a TRAFFIC DIVISION is not established, then said term whenever used herein shall be deemed to refer to the Police Department of the City.
TRAFFIC-CONTROL SIGNAL
Any device, whether manually, electrically or mechanically operated, by which traffic is alternately directed to stop and to proceed.
VEHICLE
Every device in, upon or by which any person or property is or may be transported or drawn upon a highway, excepting devices moved by human power or used exclusively upon stationary rails or tracks.
[Prior Code, § 300.140; Penalty, see § 10.99]
Every person propelling any push cart or riding an animal upon a roadway, and every person driving any tractor or animal-drawn vehicle, shall be subject to the provisions of this Traffic Code applicable to the driver of any vehicle, except those provisions of this Traffic Code which by their very nature can have no application.
[Prior Code, § 300.150; Penalty, see § 10.99]
No person upon roller skates, or riding in or by means of any coaster, toy vehicle or similar device, shall go upon any roadway except while crossing a street on a crosswalk and when so crossing such person shall be granted all of the rights and shall be subject to all of the duties applicable to pedestrians. This section shall not apply upon any street while set aside as a play street as authorized by ordinance of the City.
[Prior Code, § 300.160; Penalty, see § 10.99]
The provisions of this Traffic Code shall apply to the driver of any vehicle owned by or used in the service of the United States government, this state, county or City, and it shall be unlawful for any said driver to violate any of the provisions of this Traffic Code, except as otherwise permitted herein.
[Prior Code, § 300.170; Penalty, see § 10.99]
(A) 
The driver of an authorized emergency vehicle, when responding to an emergency call or when in the pursuit of an actual or suspected violator of the law or when responding to but not upon returning from a fire alarm, may exercise the privileges set forth in this section, but subject to the conditions herein stated.
(B) 
The driver of an authorized emergency vehicle may:
(1) 
Park or stand, irrespective of the provisions of this Traffic Code;
(2) 
Proceed past a red or stop signal or stop sign, but only after slowing down as may be necessary for safe operation;
(3) 
Exceed the maximum speed limits so long as he or she does not endanger life or property; and
(4) 
Disregard regulations governing direction of movement or turning in specified directions.
(C) 
The exemptions herein granted to an authorized emergency vehicle shall apply only when the driver of any said vehicle while in motion sounds audible signal by bell, siren or exhaust whistle as may be reasonably necessary, and when the vehicle is equipped with at least one lighted lamp displaying a red light visible under normal atmospheric conditions from a distance of 500 feet to the front of such vehicle.
(D) 
The foregoing provisions shall not relieve the driver of an authorized emergency vehicle from the duty to drive with due regard for the safety of all persons, nor shall such provisions protect the driver from the consequences of his or her reckless disregard for the safety of others.
[Prior Code, § 300.180; Penalty, see § 10.99]
Upon the immediate approach of an authorized emergency vehicle making use of audible and visual signals meeting the requirements of the laws of this state, or of a police vehicle properly and lawfully making use of an audible signal only, the driver of every other vehicle shall yield the right-of-way and shall immediately drive to a position parallel to, and as close to, the right-hand edge or curb of the roadway clear of any intersection and shall stop and remain in such position until the authorized emergency vehicle has passed, except when otherwise directed by a police officer.
[Prior Code, § 310.110; Prior Code, § 310.120; Penalty, see § 10.99]
(A) 
The Board of Aldermen shall have authority to declare any street or part thereof a play street and to place appropriate signs or devices in the roadway indicating and helping to protect the same.
(B) 
Whenever authorized signs are erected indicating any street or part thereof as a play street, no person shall drive a vehicle upon any such street or portion thereof except drivers of vehicles having business or whose residences are within such closed area, and then any said driver shall exercise the greatest care in driving upon any such street or portion thereof.