[Ord. No. 9905, § 2, 3-4-2010]
(a) 
Upon the immediate approach of an emergency vehicle giving audible signal by siren or while having at least one lighted lamp exhibiting red light visible under normal atmospheric conditions from a distance of 500 feet to the front of such vehicle or a flashing blue light authorized by Section 307.175, RSMo., the driver of every other vehicle shall yield the right-of-way and shall immediately drive to a position parallel to and as far as possible to the right of the traveled portion of the highway and thereupon stop and remain in such position until such emergency vehicle has passed, except when otherwise directed by a police or traffic officer.
(b) 
Upon approaching a stationary emergency vehicle displaying lighted red or red and blue lights, or a stationary vehicle owned by the State Highways and Transportation Commission and operated by an authorized employee of the Department of Transportation displaying lighted amber or amber and white lights, the driver of every motor vehicle shall:[1]
(1) 
Proceed with caution and yield the right-of-way, if possible, with due regard to safety and traffic conditions by making a lane change into a lane not adjacent to that of 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
(2) 
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.
[1]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. II).
Those streets and parts of streets described by this Code or other ordinances of the City are declared to be through streets for the purposes of this division.
[1]
State Law Reference: For similar provisions, RSMo. § 300.255.
Whenever any provision of this Code or other ordinance of the City designates and describes a through street, it shall be the duty of the Traffic Engineer to place and maintain a stop sign, or on the basis of an engineering and traffic investigation at any intersection, a yield sign, on each and every street intersecting the through street unless traffic at any such intersection is controlled at all times by traffic control signals; provided, however, that at the intersection of two through streets or at the intersection of a through street and a heavy traffic street not so designated, stop signs shall be erected at the approaches of either of the streets as may be determined by the Traffic Engineer upon the basis of an engineering and traffic study.
[1]
State Law Reference: For similar provisions, RSMo. § 300.260.
The Traffic Engineer is hereby authorized to determine and designate intersections where a particular hazard exists upon other than through streets and to determine whether vehicles shall stop at one or more entrances to any such intersection, in which event he shall cause to be erected a stop sign at every such place where a stop is required, or whether vehicles shall yield the right-of-way to vehicles on a different street at such intersection as prescribed in this division, in which event he shall cause to be erected a yield sign at every place where obedience thereto is required.
[1]
State Law Reference: For similar provisions, RSMo. § 300.265.
Except when directed to proceed by a police officer or traffic control signal, every driver of a vehicle approaching a stop intersection indicated by a stop sign shall stop, and after having stopped, shall yield the right-of-way to any vehicle which has entered the intersection from another highway or which is approaching so closely on said highway as to constitute an immediate hazard during the time when the driver is moving across or within the intersection.
[1]
State Law Reference: For similar provisions, RSMo. § 300.275.
The driver of a vehicle approaching a yield sign shall, in obedience to the sign, slow down to a speed reasonable for the existing conditions and shall yield the right-of-way to any vehicle in the intersection or approaching on another highway so closely as to constitute an immediate hazard during the time the driver is moving across or within the intersection; if a driver approaching a yield sign is involved in a collision with a vehicle in the intersection after driving past a yield sign without stopping, the collision shall be deemed prima facie evidence of his failure to yield the right-of-way.
[1]
State Law Reference: For similar provisions, RSMo. § 300.280.
(a) 
The driver of a vehicle approaching a yield sign, if required for safety to stop, shall stop before entering the crosswalk on the near side of the intersection or, in the event there is no crosswalk, at a clearly marked stop line, but if none, then at the point nearest the intersecting roadway where the driver has a view of approaching traffic on the intersecting roadway.
(b) 
Except when directed to proceed by a police officer or traffic control signal, every driver of a vehicle approaching a stop intersection indicated by a stop sign shall stop before entering the crosswalk on the near side of the intersection or, in the event there is no crosswalk, shall stop at a clearly marked stop line, but if none, then at the point nearest the intersecting roadway where the driver has a view of approaching traffic on the intersecting roadway before entering the intersection.
[1]
State Law Reference: For similar provisions, RSMo. § 300.270.
The driver of a vehicle within a business or residence district emerging from an alley, driveway or building shall stop the vehicle immediately prior to driving onto a sidewalk or onto the sidewalk area extending across any alleyway or driveway, and shall yield the right-of-way to any pedestrian as may be necessary to avoid a collision, and upon entering the roadway shall yield the right-of-way to all vehicles approaching on the roadway.
[1]
State Law Reference: For similar provisions, RSMo. § 300.285.
[Ord. No. 7009, § 1(a), 3-3-1983]
The driver of a vehicle intending to make a left turn into an alley, private road, or driveway shall yield the right-of-way to any vehicle approaching from the opposite direction when the making of such left turn would create a traffic hazard.
[Ord. No. 7009, § 1(b), 3-3-1983]
The driver of a vehicle intending to leave the curb lane or intending to change lanes while moving shall yield the right-of-way to any vehicle approaching in the lane to which the driver intends to move when the entering of such lane would create a traffic hazard.
[Ord. No. 7009, § 1(c), 3-3-1983]
The driver of a vehicle intending to make a left turn at an intersection shall yield the right-of-way to any vehicle approaching from the opposite direction which is within the intersection or so close thereto as to constitute an immediate hazard.
[Ord. No. 7009, § 1(d), 3-3-1983]
The driver of a vehicle being operated with high beam headlights shall switch such lights to low beam when such vehicle is being approached by a vehicle coming from the opposite direction in sufficient time to prevent such high beam lights from impairing the vision of the driver of the approaching vehicle.