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HomeMy WebLinkAboutCC RESO 15,425RESOLUTION NO. 15,425 RESOLUTION ADOPTING YIELD, 2-WAY STOP AND 4-WAY STOP SIGNS INSTALLATION POLICIES (Traffic Safety Committee 87-49) BE IT RESOLVED by the City Council of the City of National City that the City Council does hereby approve the adoption of Policy for Yield Right of Way Signs, Policy for 2-Way Stop Control and Policy for 4-Way Stop Control to es- tablish warrants for uniformity in the installation of stop signs as set forth in said policies, attached hereto as Exhibits "A", "B", and "C", respectively. PASSED AND ADOPTED this 15th day of September, 1987. GEORGE . WATERS, Mayor ATTEST: ION CAMPBELL, City C%l.erk APPROVED AS TO FORM: 49e it GEORGE H. EISER, III, City Attorney POLICY FOR YIELD RIGHT -OF -WAY -SIGNS 1. PURPOSE The purpose of a Yield Sign is to control right-of-way assignments at intersections where control is available and a Stop Sign is not waranted or is unduly restrictive. 2. GENERAL In order for an intersection to receive consideration for Yield controls, certain factual data must be obtained. These include accident records, visibility conditions, and traffic volumes. 3. POLICY If the intersection meets any of the following warrants, Yield Signs will be recommended for installation on the streets carrying the minor volume of traffic: a. At an intersection where stop sign warrants are not met, where there must have been two accidents correctable by intersection control in a 12-month period, and where the critical speed is over 8 miles per hour. b. At an intersection which has between 14 and 18 points on the Two -Way Stop Warrants and a critical speed of over 8 miles per hour. c. At the entrance ramp to a freeway where an adequate acceleration lane is not provided. d. At a separate or channelized right turn lane where an adequate acceleration lane is not provided. e. At any intersection where. . a special problem exists and where an engineering study indicates the problem to be susceptible to correction by use of the Yield Sign. EXHIBIT "A" POLICY FOR 2-WAY STOP CONTROL 1. PURPOSE The purpose of stop signs is to control the right-of-way assignment at an intsection. Stop signs are placed at entrances to designated through highways or at any intersection designated by resolution as a stop intersection. In the latter case, these locations are commonly referred to as Intersection Stops. If such a location meets the following warrants, the signs are located on the street carrying the minor volume of entering traffic. Properly installed stop signs facilitate traffic movement and promote traffic safety. 2. GENERAL In order for an intersection to receive consideration for 2-way stop control, certain factual data must be obtained. These include accident records, visibility conditions, traffic and pedestrian volumes, and unusual conditions such as proximity of schools, fire stations, etc. Points are assigned to each of these warrants. The total possible points is 30. The installation of 2-way stop control is justified with a total of 18 points. 3. ACCIDENT WARRANT Three points are assigned for each accident susceptible to correction by stop signs during one full year prior to the investigation. Maximum 9 points. 4. VISIBILITY WARRANT Where the critical approach speed to the intersection is less than 17 MPH, 1 point shall be assigned for each MPH under 17 MPH. Maximum 9 points. 5. VOLUME WARRANT a. Major Street: 1 point for every 100 vehicles per day in excess of 500. Maximum 5 points. b. Minor Street: 1 point for every 25 vehicles and pedestrians* on minor street during the peak hour. Maximum 4 points. * Pedestrians crossing the minor street. 6. UNUSUAL CONDITION WARRANT Where unusual conditions exist, such as a school, fire station, playground, steep hill, etc., points are assigned on the basis of engineering judgment. Maximum 3 points. EXHIBIT "B" POLICY FOR 4-WAY STOP CONTROL 1. PURPOSE A fully justified, properly installed four-way stop can effectively assign right- of-way, reduce vehicle delay and decrease accidents. Generally, a four-way stop is reserved for use at the intersection of two through highways, and only as an innterim traffic control measure prior to signallzation. 2. GENERAL The posting of an intersection for four-way stop control should be based on factual data. Warrants to be considered include: 1. Through street conditions. 2. Accident records. 3. Traffic and pedestrian volumes. 4. Unusual conditions such as proximity of schools, fire stations, vision obscurement, etc. Points are assigned to each of these warrants. The total possible points is 50. The installation of four-way stop control is justified with a total of 30 points. 3. THROUGH STREET WARRANT One of the approaching streets to the intersection must be a through highway before the intersection can be considered for four-way stop control. A through highway shall extend at least one mile in both directions from the intersection under consideration and shall meet conditions set forth on Page 8, Section 2f of the Highway Capacity Manual, 1965. A. If only one of the intersecting streets is a through highway. 1-3 Pts. B. If both streets are through. highways. 3-5 Pts. Maximum 5 points. 4. ACCIDENT WARRANT Two points are assigned for each accident susceptible to correction by four- way stop control during one full year prior to the ivestigsation. Maximum 14 points. 5. UNSUAL CONDITION WARRANT Where unsual conditions exist at the intersection such as a school, fire station, playground, vision obscurement, etc., points are assigned on the basis of engineering judgment. Unusual conditions shall be considered only if within 500 feet of the intersection. Maximum 10 points EXHIBIT "C" VOLUME WARRANT A. Total entering vehicle volume must equal 2,000 vehicles for four highest hours in average day. B. Minimum side street vehicular and pedestrian volume must equal 600 vehicles during same four hour period. Points shall be assigned in accordance with the following tables: MINOR STREET PEDESTRIAN & ALL APPROACHES VEHICLE VOLUME (BOTH APPROACHES) Highest Four Hour Volume Points Highest Four Hour Volume Points 0 - 1400 0 600 - 800 1 1401 - 1700 1 801 - 1200 2 1701 - 2000 2 1201 - 1400 3 2001 - 2300 3 1401 - 1600 4 2301 - 2600 4 1601 - Over 5 1601 - 2900 5 2901 - 3200 6 3201 - 3500 7 3501 - 3800 8 3801 - 4100 7 4101 - 4400 6 4401 - 4700 5 4701 - 5000 4 5001 - 5300 3 5301 - 5600 2 5601 - 5900 1 Over - 5900 0 Maximum 13 Points �. VOLUME SPLIT WARRANT: Four -way stops operate best where the minor approach volume and the major approach volume are nearly equal. Points shall be assigned in accordance with the folowing table: 24-Hour Minor St. Volumes 24-Hour Major St. VOlumes Points 95+ 8 35 - 94 7 75 - 84 6 65 - 74 5 55 - 64 4 45 - 54 3 35 - 44 2 25 - 34 1 0-24 0 Maximum 8 Points