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BULLET St. Louis City Revised Code Chapter 17.08 Division I Traffic Control Devices Part II

St. Louis City Revised Code (annotated) has been converted to electronic format by the staff of the St. Louis Public Library. This electronic version has been done for the interest and convenience of the user. These are unofficial versions and should be used as unofficial copies.

Official printed copies of St. Louis City Revised Code may be obtained from the Register's Office at the St. Louis City Hall.



DIVISION I. TRAFFIC CODE

Chapter 17.08
Traffic Control Devices
Part II Traffic Regulations

Sections:

17.08.300 In general.
17.08.310 Establishment of electric traffic signals--Generally.
17.08.320 Establishment of electric traffic signals--Minimum vehicular volume.
17.08.330 Establishment of electric traffic signals--Interruption of continuous traffic.
17.08.340 Establishment of electric traffic signals--Minimum pedestrian volume.
17.08.350 Establishment of electric traffic signal--Large volumes of traffic.
17.08.360 Establishment of electric traffic signals--School crossings.
17.08.370 Establishment of electric traffic signals--Accident experience.
17.08.380 Stop signs--All approaches.
17.08.390 Stop signs--Two-way approaches.
17.08.400 Special stop signs--Generally.
17.08.410 Special stop signs--Schools.
17.08.420 Special stop signs--Playgrounds.
17.08.430 Special stop signs--Churches.
17.08.440 Special purpose stop signs.
17.08.450 Yield signs.
17.08.460 Pedestrian walk phases.
17.08.470 Prohibited parking.
17.08.480 Parking restrictions.
17.08.490 Turning movements at intersections.
17.08.500 Speed limits.
17.08.510 One-way streets.
17.08.520 Record of regulations--Review board.

17.08.300 In general.

For the purpose of affording the traffic and transportation administrator the ability to effect certain traffic controls and regulations when in the opinion of the administrator, public safety, convenience and the expedition of traffic demands, the administrator is hereby authorized and empowered, subject to the provisions hereof, to establish the respective regulatory measures and official control device specified in this chapter when the conditions in relation thereto exist, and may remove the same when such conditions do not exist or have ceased to exist.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040 (part).)

17.08.310 Establishment of electric traffic signals--Generally.

When one or more of the following criteria described in Sections 17.08.320 through 17.08.360 exists, electric traffic signals shall be established.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A) (part).)

17.08.320 Establishment of electric traffic signals--Minimum vehicular volume.

Electric traffic signals shall be established, if:

A. Total vehicular volume entering the intersection section from both approaches of the major street must be at least 500 vehicles per hour for any 8 hours of an average day; and

B. Total vehicular volume entering the intersection from any approach on the minor street or streets must be at least 150 vehicles per hour for the same 8 hours.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A)(1).)

17.08.330 Establishment of electric traffic signals--Interruption of continuous traffic.

Electric traffic signals shall be established, if:

A. At an intersection on a major street, the vehicle volume along that street must be at least 750 vehicles per hour for any 8 hours of an average day; and

B. The vehicle volume from any approach on the side street or streets must be at least 75 vehicles per hour for the same 8 hours.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A)(2).)

17.08.340 Establishment of electric traffic signals--Minimum pedestrian volume.

Electric traffic signals shall be established, if:

A. The volume on the principal street must be 600 or more vehicles per hour entering the intersection (total of both approaches) for each of any 8 hours of an average day; and

B. During the same 8 hours as in subsection A, there are 150 or more pedestrians per hour crossing the principal street.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A)(3).)

17.08.350 Establishment of electric traffic signals--Large volumes of traffic.

Electric traffic signals shall be established if, at industrial plants, stadiums and other like places where large volumes of traffic occur on regular and reasonably frequent occasions; vehicular volume on the street past an establishment of the type mentioned above exceeds 800 vehicles per hour, and traffic to and from the establishment during the same period of time meets one of the following:

A. A minimum of 300 vehicles per hour; or

B. A minimum of 200 pedestrians crossing per hour; or

C. A minimum of 200 vehicles and 100 pedestrians crossing per hour;

D. Left turns into and from the establishment exceed 240 vehicles per hour.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A)(4).)

17.08.360 Establishment of electric traffic signals--School crossings.

Electric traffic signals shall be established, if: at an established school crossing of a principal street the number of adequate gaps in the traffic stream during the crossing period must be less than the number of minutes in the same period. The adequate gaps are determined by considering the width of roadway and size of group of school children.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A)(5).)

17.08.370 Establishment of electric traffic signals--Accident experience.

Electric traffic signals shall be established, if:

A. There have been five or more police reported accidents of types susceptible of correction by signalization within a 12-month period; and

B. There exists a volume of vehicular and pedestrian traffic of 80 percent or more of the requirements stated either in items number one, two or three.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(A)(6).)

17.08.380 Stop signs--All approaches.

Stop signs on all approaches to an intersection are warranted if any of the following criteria are met:

A. Electric traffic signals are warranted, and the stop control is to be used as an interim control device;

B. Five or more police reported accidents in a 12-month period of types susceptible of correction by stop on all approaches;

C. Traffic volumes in the following combination are present:

1. Total vehicular volume entering the intersection from all approaches must be at least 500 vehicles per hour for any 8 hours, and

2. The combined vehicular and pedestrian volume from the minor street must be at least 200 units per hour for the same 8 hours, with an average delay of vehicles on the minor street of at least 30 seconds per vehicle during the maximum volume hour;

D. When both streets are local by classification and 51 percent of the registered voters in the block facing adjacent to the intersection indicate by petition that they desire the control and when the alderman or aldermen from the ward or wards, wherein the street or streets are located, indicate that they desire the control; or where the alderman or aldermen from the ward or wards wherein the proposed stop sign is located desires the control.
(Ord. 58088 1, 1980: Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(1).)

17.08.390 Stop signs--Two-way approaches.

Stop sign control is warranted for the lesser volume street when one of the following criteria is present:

A. The street is presently controlled with a yield sign and there have been 3 police reported accidents in a 12-month period caused by motorists failing to heed the yield control;

B. Vehicular volume averages 150 vehicles per hour for any 3 consecutive hours;

C. Three (3) police reported accidents in a 12-month period of types susceptible to correction;

D. Sight distance for either of the approaches of the minor volume street is restricted such that the safe approach speed is less than 10 mph;

E. When a local street by classification intersects with a collector or arterial street, the local street shall be controlled;

F. When two local streets intersect and in the opinion of the Traffic and Transportation Administrator safety requires the assignment of right-of-way for one street and when the appropriate alderman or aldermen from the ward or wards, wherein the street or streets are located, indicate that they desire the control.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(2).)

17.08.400 Special stop signs--Generally.

The following school, playground, church and special purpose stop control shall be warranted when the criteria described in Sections 17.08.410 through 17.08.440 is satisfied.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(3)(part).)

17.08.410 Special stop signs--Schools.

School stop signs controlling vehicular traffic are warranted if two of the following criteria are present:

A. More than 25 children on their way to or from school by the most feasible and direct route cross the street in a two-hour period in a crosswalk not guarded by a school crossing guard and an hourly volume of more than 500 vehicles use the street during the same two hour period;

B. More than 200 children on their way to or from a school cross the street in a two-hour period in a crosswalk guarded by a school crossing guard;

C. There is no intersection, located less than 300 feet from the crosswalk under consideration, where vehicle traffic in the street being crossed by said crosswalk is controlled by a stop sign, an electric signal or a crossing guard.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(3)(a).)

17.08.420 Special stop signs--Playgrounds.

Playground stop signs controlling vehicular traffic on a street are warranted at supervised play areas if two of the following criteria are present:

A. More than 25 children on their way to or from a playground cross the street in a two-hour period or in excess of 150 children cross during the hours 8 A.M. to 9 P.M. in a crosswalk not guarded by a crossing guard and an hourly volume of more than 500 vehicles use the street proposed to be controlled during the same two-hour period;

B. More than 200 children on their way to or from a playground cross the street in a two-hour period in a crosswalk guarded by a playground crossing guard;

C. There is no intersection located less than 300 feet from the crosswalk under consideration where vehicular traffic in the street being crossed by said crosswalk is controlled by a stop sign, an electric signal, or a crossing guard.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(3)(b).)

17.08.430 Special stop signs--Churches.

Church stop signs controlling vehicular traffic on a street are warranted, if the following criteria are present:

A. More than 200 pedestrians on their way to or from church cross the street in a two-hour period in a crosswalk and an hourly volume of more than 500 vehicles use the street during the two-hour period used by pedestrians;

B. There is no intersection located less than 300 feet from the crosswalk under consideration where vehicular traffic on the street being crossed is controlled by a stop sign or an electric signal.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(3)(c).)

17.08.440 Special purpose stop signs.

Special purpose stop signs controlling vehicular traffic on a street are warranted if the following criteria are present:

More than 200 pedestrians cross the street in a one hour period to or from their place of employment and there is a minimum of 500 vehicles using the street during the same hour.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(B)(3)(d).)

17.08.450 Yield signs.

A. Yield signs shall be warranted at intersections where the following criteria are present:

1. When the volume of vehicle traffic does not exceed the minimum requirements for a stop intersection and other minimum requirements for a stop intersection are not met;

2. When the total volume of vehicles entering the intersection reached 100 vehicles per hour for 8 hours, and the total volume of vehicle traffic entering the intersection does not exceed 500 vehicles per hour during more than two hours in a day.

B. Yield signs shall be warranted for use in controlling ramp traffic entering the main traffic flow when an adequate acceleration lane does not exist.

C. Yield signs shall be warranted where there is a separate or channelized right-turn lane, without an adequate acceleration lane.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040 (C).)

17.08.460 Pedestrian walk phases.

An exclusive pedestrian walk phase shall be warranted in conjunction with traffic signals when one of the following criteria is present:

A. When pedestrians and vehicles presently move during the same electric signal phase and the pedestrian volume crossing the more heavily traveled street averages at least 500 persons per hour for any 8 hours of an average day;

B. When sufficiently heavy vehicular turning movements exist so that pedestrians do not have sufficient time to cross the street into which vehicles are turning, based on the amount of time left to the pedestrian after turning movements are completed. Sufficient time shall be based on the duration of the signal phase, number of vehicles turning, and width of street.

C. When institutionalized pedestrians require special consideration to permit them to cross a major street adjacent to the institution.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040 (D).)

17.08.470 Prohibited parking.

Prohibition of parking along a curb shall be warranted when one of the following criteria exists:

A. On a two-way street where and when the average hourly volume of traffic per lane in all lanes (excluding the parking lanes) in one direction in any hour or hours exceeds 500 vehicles per hour the parking shall be prohibited during the hour or hours when such volume is exceeded and shall be prohibited along the curb or edge of roadway on the right of these traffic lanes;

B. On a one-way street where and when the average hourly volume of traffic per lane in all lanes (excluding the right and left parking lanes) in any hour or hours exceeds 500 vehicles per hour the parking shall be prohibited during the hour or hours when such volume is exceeded and shall be prohibited first along the left curb or edge or roadway and successively along the right hand curb or edge or roadway as required;

C. Any specific ordinance provision calling for such prohibition such as in a crosswalk;

D. Where vehicles waiting at an electric signal require more lane capacity;

E. Where visibility at an intersection is restricted by vehicles parking too close to one cross street, visibility being reduced below safe stopping distances for allowable operating speeds as adopted by the Institute of Traffic Engineers;

F. Where the narrowness of the roadway causes difficulty in maneuvering turns unless parking is prohibited;

G. Where a special turning lane requires additional lane capacity at an intersection;

H. Where the fire department requires a prohibition of parking to provide for adequate movements for fire apparatus;

I. When in the opinion of the traffic and transportation administrator after proper study, the parking restrictions are needed for safety or to reduce interference with good traffic flow.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040 (E).)

17.08.480 Parking restrictions.

Restriction of curb parking to certain amounts of time during certain hours of the day shall be warranted according to the following criteria:

A. Where vehicles are parked in front of residences for periods of time longer than two hours and when the traffic and transportation administrator is petitioned to act by more than 65 percent of the registered voters as to the length of time of parking and to the hours when such restrictions apply;

B. Where vehicles are parked in front of a place of business for a period of time longer than 2 hours and, when the proprietor of such place of business requests the traffic and transportation administrator to act, such parking shall be restricted to a length of time not in excess of 2 hours during the hours of business of such establishment.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040 (F).)

17.08.490 Turning movements at intersections.

Turning movements at intersections may be prohibited when any one of the following criteria exists:

A. The turning movement is a left turning movement and represents less than 10 percent of the through traffic movements and such turning movements are observed to impede through movements of traffic;

B. Where a turning movement is not the only means of access and represents a hazard to safety as evidenced by three or more collisions in a 12-month period where the turning movement was involved;

C. Where the turning movement is not the only means of access and materially contributes to congestion or complicating factors in involved intersection.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040 (G).)

17.08.500 Speed limits.

Speed limits shall be:

A. 40 miles per hour on streets, boulevards, and other public thoroughfare with limited access;

B. 35 miles per hour on arterial and collector streets, boulevards, and other public thoroughfares open to vehicular movements with at least two ten-foot lanes freely open to each direction of movement at all times. The paved roadway of streets, etc., so controlled shall be at least 56 feet wide on two-way streets, and 36 feet wide on one-way streets with parking restrictions, or 30 feet wide on one-way streets with parking restrictions on at least one side at all times;

C. 30 miles per hour on all other arterial and collector streets and on all other streets with a paved roadway at least 36 feet wide on two-way streets;

D. 25 miles per hour on all other streets not mentioned above, including park roads, and all streets in the central traffic district;

E. 15 miles per hour on all public alleys and other publicly owned or controlled property not mentioned above, but which is open to vehicular traffic, such as parking lots, access driveways, etc.

Speed limits specified in the subsections A, B and C of this section shall be posted by the Traffic and Transportation Division on the streets, so controlled.
(Ord. 57831 1 (part), 1979: 1960 C. 821.040(H).)

17.08.510 One-way streets.

Warrant for designation as a one-way street for the purpose of moving traffic on this street in one direction only shall exist when the designation of a street as one-way does not deny the entrance or exit of an abutting property owner. That where possible any adjacent one-way streets are made to be one-way in opposite direction when one of the following criteria is met:

A. Where the roadway is less than 38 feet wide with parking allowed on both sides of the street; or the roadway is less than 28 feet wide with parking prohibited from one side of the street;

B. Where a roadway wider than 38 feet when an adjacent parallel roadway of similar width is made one-way in the opposite direction, and when the volume of traffic as a two-way street exceeds 1000 vehicles per lane in one direction on an average 24-hour day;

C. Where a street is composed of an odd number of traffic lanes and where full utilization of the number of lanes is necessary to accommodate the volume of traffic;

D. Where minor streets can be made one-way to take traffic away from a complicated area or intersection;

E. Where a street on which the predominant land use is zoned A through E and 65 percent of the registered voters indicate by petition that they desire the street to be made one-way and when the Alderman or Aldermen from the ward or wards, wherein the street is located, indicate that they desire the control.
(Ord. 57831 1 (part), 1979: prior: 1960 C. 821.040(I).)

17.08.520 Record of regulations--Review board.

A. The Traffic and Transportation Administrator shall keep a record of all regulations adopted by him under the power and authority granted in this chapter. This record shall be kept in his office and be subject to public inspection. The Traffic and Transportation Administrator in making such regulations as enumerated in Sections 17.08.300 through 17.08.510, except emergency regulations and regulations covering special conditions, shall communicate same to the Board of Aldermen in writing by delivering a copy of such written regulations within 60 days after such regulations are promulgated, to the Clerk of the Board of Aldermen and to the City Register.

B. The Board of Public Service shall act as the City's Administrative Review Board. Any person aggrieved by any action taken by the Traffic and Transportation Administrator under Sections 17.08.300 through 17.08.510, may appeal to the Board of Public Service. An appeal registration fee of $10.00 will be required. The Board, upon hearing such appeal, shall either affirm, modify or set aside any action taken by the Traffic and Transportation Administrator. Unless the Board of Public Service modifies or sets aside any such regulation or unless the Board of Aldermen shall, within 90 days after receipt by the Clerk of the Board of Aldermen of such notice, modify or set aside any such regulation by a duly enacted ordinance, such regulation shall remain in full force and effect until such regulation is altered, modified or set aside by a new regulation promulgated by the Traffic and Transportation Administrator or until such regulation is modified, set aside or authorized by a duly enacted ordinance of the Board of Aldermen.
(Ord. 57831 1 (part), 1979: prior: 1960 C. 821.050.)

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