Section 315.100 Interference With Official Traffic Control Devices — Clear Vision Zones At Intersections.
[Ord. No. 5283 §2, 11-12-2012]
All traffic control signs, signals and devices shall conform to the manual and specifications approved by the State Highways and Transportation Commission or resolution adopted by the City Council of the City. All signs or signals required hereunder for a particular purpose shall so far as practicable be uniform as to type and location throughout the City. All traffic control devices so erected and not inconsistent with the provisions of this Title shall be official traffic control devices. The timing of any traffic control signal shall conform to regulations promulgated by the Department of Transportation as required by Section 304.289, RSMo.
The driver of any vehicle shall obey the instructions of any official traffic control device applicable thereto placed in accordance with the provisions of this Title, unless otherwise directed by a traffic or Police Officer, subject to the exceptions granted the driver of an authorized emergency vehicle in this Title.
Any person operating a motorcycle or bicycle who violates the provisions of Section 304.281 or Section 304.301, RSMo., by entering or crossing an intersection controlled by a traffic control signal against a red light shall have an affirmative defense to that charge if the person establishes all of the following conditions:
The motorcycle or bicycle has been brought to a complete stop;
The traffic control signal continues to show a red light for an unreasonable time;
The traffic control is apparently malfunctioning or, if programmed or engineered to change to a green light only after detecting the approach of a motor vehicle, the signal has apparently failed to detect the arrival of the motorcycle; and
No motor vehicle or person is approaching on the street or highway to be crossed or entered or is so far away from the intersection that it does not constitute an immediate hazard.
The affirmative defense of this Section applies only to a violation for entering or crossing an intersection controlled by a traffic control signal against a red light and does not provide a defense to any other civil or criminal action.
No provision of this Title for which official traffic control devices are required shall be enforced against an alleged violator if at the time and place of the alleged violation an official device is not in proper position and sufficiently legible to be seen by an ordinarily observant person. Whenever a particular Section does not state that official traffic control devices are required, such Section shall be effective even though no devices are erected or in place.
Whenever official traffic control devices are placed in position approximately conforming to the requirements of this Title, such devices shall be presumed to have been so placed by the official act or direction of lawful authority, unless the contrary shall be established by competent evidence.
Any official traffic control device placed pursuant to the provisions of this Title and purporting to conform to the lawful requirements pertaining to such devices shall be presumed to comply with the requirements of this Title, unless the contrary shall be established by competent evidence.
Whenever traffic is controlled by traffic control signals exhibiting different colored lights or colored lighted arrows, successively one (1) at a time or in combination, only the colors green, red and yellow shall be used except for special pedestrian signals carrying a word legend, and said lights shall indicate and apply to drivers of vehicles and pedestrians as follows:
Vehicular traffic facing a circular green signal may proceed straight through or turn right or left unless a sign at such place prohibits either such turn. But vehicular traffic, including vehicles turning right or left, shall yield the right-of-way to other vehicles and to pedestrians lawfully within the intersection or an adjacent crosswalk at the time such signal is exhibited.
Vehicular traffic facing a green arrow signal, shown alone or in combination with another indication, may cautiously enter the intersection only to make the movement indicated by such arrow or such other movement as is permitted by other indications shown at the same time. Such vehicular traffic shall yield the right-of-way to pedestrians lawfully within an adjacent crosswalk and to other traffic lawfully using the intersection.
Steady yellow indication.
Vehicular traffic facing a steady yellow signal is thereby warned that the related green movement is being terminated or that a red indication will be exhibited immediately thereafter.
Steady red indication.
Vehicular traffic facing a steady red signal alone shall stop before entering the crosswalk on the near side of the intersection or, if none, then before entering the intersection and shall remain standing until a green indication is shown except as provided in paragraph (b) of this Subsection.
The driver of a vehicle which is stopped as close as practicable at the entrance to the crosswalk on the near side of the intersection or, if none, then at the entrance to the intersection in obedience to a red signal may cautiously enter the intersection to make a right turn but shall yield the right-of-way to pedestrians and other traffic proceeding as directed by the signal at the intersection, except that the State Highways and Transportation Commission with reference to an intersection involving a State highway, and local authorities with reference to an intersection involving other highways under their jurisdiction, may prohibit any such right turn against a red signal at any intersection where safety conditions so require, said prohibition shall be effective when a sign is erected at such intersection giving notice thereof.
In the event an official traffic control signal is erected and maintained at a place other than an intersection, the provisions of this Section shall be applicable except as to those provisions which by their nature can have no application. Any stop required shall be made at a sign or marking on the pavement indicating where the stop shall be made, but in the absence of any such sign or marking, the stop shall be made at the signal.
Whenever special pedestrian control signals exhibiting the words "Walk" or "Don't Walk" or appropriate symbols are in place, such signals shall indicate as follows:
"WALK": Pedestrians facing such signal may proceed across the roadway in the direction of the signal and shall be given the right-of-way by the drivers of all vehicles.
"WAIT" or "DON'T WALK": No pedestrian shall start to cross the roadway in the direction of such signal, but any pedestrian who has partially completed his/her crossing on the walk signal shall proceed to a sidewalk or safety zone while the wait signal is showing.
Whenever an illuminated flashing red or yellow signal is used in a traffic sign or signal, it shall require obedience by vehicular traffic as follows:
Flashing red (stop signal). When a red lens is illuminated with rapid intermittent flashes, drivers of vehicles shall stop before entering the nearest crosswalk at an intersection or at a limit line when marked or, if none, then before entering the intersection, and the right to proceed shall be subject to the rules applicable after making a stop at a stop sign.
Flashing yellow (caution signal). When a yellow lens is illuminated with rapid intermittent flashes, drivers of vehicles may proceed through the intersection or past such signal only with caution.
[R.O. 2008 §16-388; Ord. No. 977 §1(9.8), 1-5-1981]
No person operating a vehicle on the roadway shall move from his/her lane into any other lane of traffic moving in the same direction where appropriate signs on the roadway indicate a no-lane-changing zone and such signs are in place and clearly visible to any ordinarily observant person.
State Law Reference — Lane direction control signals, §300.170, RSMo.
When a traffic control device or signal is not operating through mechanical failure or for other reasons, all traffic shall come to a complete stop before operating onto or through the intersection.
No person shall place, maintain or display upon or in view of any highway an unauthorized sign, signal, marking or device which purports to be or is an imitation of or resembles an official traffic control device or railroad sign or signal, or which attempts to direct the movement of traffic, or which hides from view or interferes with the effectiveness of any official traffic control device or any railroad sign or signal.
Section 315.100 Interference With Official Traffic Control Devices — Clear Vision Zones At Intersections. 
[R.O. 2008 §16-397; Ord. No. 977 §1(9.13), 1-5-1981]
No person shall, without lawful authority, attempt to or in fact alter, deface, injure, knock down or remove any official traffic control device or signal or any part thereof.
It shall be unlawful for any person to hide or obscure any official traffic control device or signal by the erection of any object or by allowing bushes, hedges, trees or other vegetation to grow and obscure the same.
Unobstructed vision for traffic safety shall be maintained by the owner or occupant on all corner lots regardless of the zone classification with reference to any vehicle, trailer, sign, fence, ornament, hedge, shrub, tree, display or any other obstruction, but not including buildings. No such obstruction to view between three (3) and eight (8) feet above the gutter line shall be placed or maintained within a triangular area at the street corner, which area is bounded by:
The street property lines of the corner lot and a line connecting points twenty-five (25) feet distant from the intersection of the property lines of such lot; or
The curb lines of an intersection and a line connecting points thirty-five (35) feet distant from the corner of the curb lines out to a specified point, whichever is the lesser.
Every such object or vegetation is hereby declared a public nuisance and the authority having jurisdiction over the public way is hereby empowered to remove the same or cause to be removed without notice.
State Law Reference — Provisions similar to paragraph (A), §300.180, RSMo.
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.
[R.O. 2008 §16-387; Ord. No. 977 §1(9.6), 1-5-1981]
It shall be unlawful for the operator of a vehicle traveling in a particular traffic lane on a roadway divided and marked into lanes to disobey a sign, signal, arrow or marker along the roadway which directs vehicles traveling in such lane to move in a particular lane or direction or not to move into a different lane or in a different direction.
[R.O. 2008 §16-395; Ord. No. 674 §1, 4-22-1974; Ord. No. 2109 §1, 2-12-2001]
Except as authorized by the City Traffic Engineer, no person or persons shall erect, construct, place or maintain any speed bumps, ridges, depressions, fences, gates, chains, bars, pipes, horses or any other type of obstruction in or on any street or roadway within the boundaries of the City.
Editor's Note: Former Section 315.140, Violation of Public Safety At Intersections and the Automated Photo Enforcement of Traffic Control Signal Regulations, adopted and amended R.O. 2008 §16-398; Ord. No. 4024 §1, 6-12-2006; Ord. No. 4078 §1, 9-23-2007; Ord. No. 5016 §1, 1-14-2008; Ord. No. 5283 §1, 11-12-2012, and which immediately followed this section, was repealed 5-27-2014 by §1 of Ord. No. 5373. Ordinance No. 5373 also requires the prosecutor to dismiss all unresolved prosecutions for violation of Section 315.140, including any related charges for failure to appear.