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02-05-2008 - Ordinance for Adoption - Change of Speed Limit Citrus Avenue• • TO: Andrew G. Pasmant, City Manager and City Council FROM: Susan Rush Assistant City Clerk SUBJECT: ORDINANCE FOR ADOPTION CHANGE OF SPEED LIMIT CITRUS AVENUE RECOMMENDATION: City of West Covina Memorandum AGENDA ITEM NO. D-3 DATE: February 5, 2008 PRINTED ON RECYCLED PAPER It is recommended that the City Council adopt the following ordinance: ORDINANCE NO. - AN ORDINANCE OF THE CITY COUNCIL OF THE AMENDING SECTION CODE RELATING TO SPEEDS DISCUSSION: CITY OF WEST COVINA, CALIFORNIA, 22-132 OF THE WEST COVINA MUNICIPAL DECREASES OF STATE LAW MAXIMUM This ordinance was introduced at the City Council meeting of January 15, 2008. This ordinance would change the posted speed limit of traffic traveling on Citrus Street from Vine Avenue to Hillside Drive from 45 MPH to 40 MPH. This ordinance will become effective 30 days after adoption on February 14, 2008. r r Prepare y Margaret Garcia Deputy ity Clerk J,r ✓' I' / ill/ -� � Approved by Susan Rush Assistant City Clerk Attachment: 1. Ordinance 2. January 15, 2008 Staff Report Item No. D-5: Request III of Traffic Committee Minutes dated December 18, 2007 Attachment No. 1 ORDINANCE NO. AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF WEST COVINA, CALIFORNIA, AMENDING SECTION 22-132 OF THE WEST COVINA MUNICIPAL CODE RELATING TO DECREASES OF STATE LAW MAXIMUM SPEEDS The City Council of the City of West Covina does ordain as follows: SECTION 1. Section 22-132 of the West Covina Municipal Code is amended such that the sub -paragraph labeled Citrus Street from Vine Avenue to Hillside Drive is deleted; and that the following sub -paragraph is inserted: Citrus Street from Vine Avenue to Hillside Drive = 40 mph SECTION 2. That the City Clerk shall certify to the passage of this ordinance and shall cause the saine to be published as required by law. PASSED AND APPROVED this 51h day of February 2008. Mayor Sherri Lane ATTEST: City Clerk Laurie Carrico I, LAURIE CARRICO, CITY CLERK of the City of West Covina, California, do hereby certify that the foregoing Ordinance was regularly introduced and placed upon its first reading at a regular meeting of the City Council on the 151h day of January 2008. That thereafter, said Ordinance was duly adopted and passed at a regular meeting of the City Council on the 5`1' day of February 2008, by the following vote: AYES: NOES: ABSENT: ABSTAIN: City Clerk Laurie Carrico APPROVED AS TO FORM: City Attorney Arnold Alvarez-Glasman Attachment No. 2 a TO: Andrew G. Pasmant, City Manager and City Council FROM: Shannon A. Yauchzee, Director/City Engineer Public Works Department SUBJECT: TRAFFIC COMMITTEE MINUTES RECOMMENDATION: - it is recommended that the City Council take the following actions: City of West Covina Memorandum AGENDA ITEM NO. D-5 DATE January 15.2008 1. Introduce the following ordinance reducing the speed limit on Citrus Street from Vine Avenue to Hillside Drive from 45 miles per hour to 40 miles per hour. AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF WEST COVINA, CALIFORNIA, AMENDING SECTION 22-132 OF THE WEST COVINA MUNICIPAL CODE RELATING TO DECREASES OF STATE LAW MAXIMUM SPEEDS. 2. Accept and file the attached minutes of the Traffic Committee meeting held on December 18, 2007 j Prepared by: Miguel Hernandez Reviewed/Approved by: Shannon A. Yauchzee Civil Engineering Associate Director/City Engineer Attachment No. 1 ZATRAFFIC COMMITTEE - 2007\December TC 2007 Minutes.doc 1 III. REQUEST: Cy Koch, West Covina Resident Dennis McConaughey, West Covina Resident THAT A MULTI -WAY STOP BE INSTALLED AT THE INTERSECTIONS OF CITRUS STREET AND MONTEZUMA WAY AND CITRUS STREET AND SPRING MEADOW DRIVE. FINDINGS: Citrus Street and Montezuma Way Citrus Street and Montezuma Way are both 40 feet wide curb to curb, and form a "T" type intersection. The 40-foot width on both streets provides for two 20 feet travel lanes. Citrus Street is designated as a collector street and Montezuma Way is designated as residential. The intersection is controlled by a stop sign for the westbound approach of Montezuma Way. The posted speed limit along this segment of Citrus Street is 45 miles per hour. A recent speed survey of vehicles traveling on this segment of Citrus Street indicates that the critical approach speed (85 percentile -speed) is 46 miles per hour. The following table shows traffic volumes for a 24-hour period on the two streets. L.ocairon, �,: Northbound .,.:Soufhboud - . _Westbound::. Citrus Street 1453 1323 Montezuma Way 313 The primary concerns of the residents are vehicles traveling along Citrus Street have a restricted line of sight to vehicles entering from Montezuma Way and speeding. At the intersection of Citrus Street and Montezuma Way, there is downhill grade of eight percent (8%) south of the intersection and an uphill grade of six percent (6%) to the north. The calculated safe stopping sight distance for a vehicle traveling on wet pavement at the critical approach speed of 46 miles per hour at 471 feet for the down hill approach and 345 feet for the up hill approach. Because of the nature of the horizontal and vertical alignment at this intersection of Citrus Street, the actual safe stopping sight distance was measured at 495 feet to the south and 307 feet to the north of the intersection. Therefore, the line of sight is not restricted. A stop sign warrant evaluation form in accordance with the Manual of Uniform Traffic Control Devices (MUTCD) is attached and shows that none of ' the warrants for a multi -way stop were met. Citrus Street and Springs Meadow Drive Citrus Street is 40-foot wide designated as a collector street and Spring Meadow Drive is a 32-foot wide residential street. The intersection is controlled by a stop sign for the westbound approach of Montezuma Way. The posted speed limit along this segment of Citrus Street is 45 miles per hour. A recent speed survey of vehicles traveling on this segment of Citrus Street indicates that the critical approach speed (85 percentile speed) is 47 miles per hour. The following table shows traffic volumes for a 24-hour period on the two streets. Iocahou. Northbound Southbound r :Westbound:= Citrus Street 1617 1692 Spring Meadow 130 ZATRAFFIC COMMITTEE - 2007\December TC 2007 Minutes.doc III. REQUEST: (Continued) The primary concerns of the residents are vehicles traveling along Citrus Street have a restricted line of sight to vehicles entering from Spring Meadow and speeding. At the intersection of Citrus Street and Montezuma Way, there is downhill grade of 2.6 percent south of the intersection and an uphill grade of 5.1 percent to the north. The calculated safe stopping sight distance for a vehicle traveling on wet pavement at the critical approach speed of 47 miles per hour at 424 feet for the down hill approach and 366 feet for the up hill approach. Because of the nature of the horizontal and vertical alignment at this intersection of Citrus Street, the actual safe stopping sight distance was measured at 505 feet to the: south and 565 feet to the north of the intersection. Therefore, the line of . sight is not restricted. A stop sign warrant evaluation form in accordance with the Manual of Uniform Traffic Control : Devices (MUTCD) is attached and shows that none of the warrants for a multi -way stop were met. Speeding According to the Manual of Uniform Traffic Control Devices (MUTCD) 2003 California Supplement, speed limits should be established at the nearest five miles per hour increment to the 85th percentile speed, which is defined as that speed which 85 percent of the traffic is moving. The 85th percentile is often referred to as critical speed. Speed limits higher than the 85th xercentile are not considered reasonable and prudent. Speed limits below the 85 percentile do not ordinarily facilitate the orderly movement of traffic and require constant enforcement to maintain compliance. Traffic and Engineering study (attached) was conducted on a segment of .Citrus Street from Vine Avenue and Hillside Drive. The result of the study indicated that the critical speed (85%) for this segment is less than the posted speed limit and suggests that the posted speed limit may be lowered safely. TRAFFIC COMMITTEE RECOMMENDATIONS: THAT IN ACCORDANCE WITH THE PROVISION OF THE MANUAL OF UNIFORM TRAFFIC CONTROL DEVICES, THE FOLLOWING SPEED SHALL BE ESTABLISHED BY ORDINANCE ALONG CITRUS STREET: FROM VINE AVENUE TO HILLSIDE DRIVE 40 MPH THAT. SPEED LIMIT SIGNS WITH RADAR ENFORCED PLATES BE INSTALLED ON CITRUS STREET BETWEEN VINE AVENUE AND HILLSIDE DRIVE. THAT WATCH DOWN HILL SPEED SIGNS BE INSTALLED. ON NORTHBOUND CITRUS STREET. THAT THE PORTABLE SPEED TRAILER BE UTILIZED ON CITRUS STREET. THAT RED CURB BE INSTALLED ON CITRUS STREET AT MONTEZUMA WAY AND SPRING MEADOW. THAT LANDSCAPING AT THE SOUTHWEST CORNER OF CITRUS STREET AND MONTEZUMA WAY BE TRIMMEDIREMOVE. ZATRAFFIC COMMITTEE - 2007\December TC 2007 Minutes.doc S CITY OF WEST COVINA MULTI -WAY STOP WARRANT Date of Traffic Count: 18- Sep-07 Intersection of Citrus Street/ Montezuma Wa A. VOLUME WARRANT SATISFIED NOT SATISFIED X 1. 300 or more vehicles per hour (average) entering intersection from major street approaches (total from both approaches) for any eight hours , and 156 2. 200 or more combined vehicles and pedestrians per hour (average) entering intersection from minor street for the same eight hours, with 26 3. An average delay to minor street vehicular traffic of at least 30 seconds per vehicle during the maximum hour None B. SEVENTY WARRANT SATISFIED NOT SATISFIED X When the 85-percentile approach speed of the major street exceeds 40 mph, the minimum vehicular volume warrant is 70 percent of the above requirements. 156 C. ACCIDENT WARRANT SATISFIED NOT SATISFIED X Five or more accidents of types susceptible of correction by multi -way stops within a twelve-month period. None D. INTERIM MEASURE WARRANT SATISFIED NOT SATISFIED X Where traffic signals are warranted and urgently needed r N/A ZATRAFFIC COMMITTEE - 2007\December TC 2007 Minutes.doc CITY OF WEST COVINA MULTI -WAY STOP WARRANT Date of Traffic Count: November 28, 2007 Intersection of Citrus Street/ Spring Meadow E. VOLUME WARRANT SATISFIED NOT SATISFIED X 1. 300 or more vehicles per hour (average) entering intersection from major street approaches (total from both approaches) for any eight hours , and 167 2. 200 or more combined vehicles and pedestrians per hour (average) entering intersection from minor street for the same eight hours, with 3. An average delay to minor street vehicular traffic of at least 30 seconds per vehicle, during the maximum hour None F. SEVENTY WARRANT SATISFIED NOT SATISFIED X When the 85-percentile approach speed of the major street exceeds 40 mph, the minimum vehicular volume warrant is 70 percent of the above requirements. 167 G. ACCIDENT WARRANT SATISFIED NOT SATISFIED X Five or more accidents of types susceptible of correction by multi -way stops within a twelve-month'period. -None H. INTERIM MEASURE WARRANT SATISFIED NOT SATISFIED X Where traffic signals are warranted and urgently needed N/A ZATRAFFIC COMMETEE - 2007\December TC 2007 Minutes.doc 7 ATTACHMENT NO. 1 'ublic Works Department Engineering Division December 6, 2007 ENGINEERING AND TRAFFIC SURVEY OF CITRUS STREET FROM VINE AVENUE TO HILLSIDE DRIVE Introduction: The effective enforcement of posted speed limits with radar on certain streets requires The effective enforcement of posted speed limits with radar, laser or other electronic devices on certain streets requires that an Engineering and Traffic Survey must be completed within the previous five years. The majority of drivers comply with the law but disregard regulations that they consider unreasonable. A small segment of the population is repeatedly inclined to be reckless, unreliable, or have faulty judgment and must be controlled by enforcement. According to the Manual of Uniform Traffic Control Devices (MUTCD) 2003 California Supplement, speed limits should be established at the nearest 5 mph increment to the 85t' percentile speed, which is defined as that speed at or below which 85 percent of the traffic is moving. The 85t' percentile is often referred to as critical speed. Pace speed is defined as the 10-mile increment of speed containing the largest number of vehicles. Speed limits higher than the 85`h percentile are not considered reasonable and prudent. Speed limits below the 85`h percentile do not ordinarily facilitate the orderly movement of traffic and require constant enforcement to maintain compliance. The establishment of a speed limit of more than 5 miles per hour below the 85 percentile (critical) speed should be done with great care as studies have shown that establishing a speed limit at less than this the 85 percentile generally results in an increase in collision rates; in addition, this may make violators of a disproportionate number of the reasonable majority of drivers. When roadside developments results in traffic conflicts and unusual conditions which are not readily apparent to the driver, as indicated in collision records, .speed limits some what below the 85t' percentile may be Justified. Section 22358 of the Vehicle Code states that it is the intent of the Legislature that physical conditions .such as width, curvature, grade and surface conditions, or any condition readily apparent to the driver, in the absence of other factors, would not require special downward speed zoning. 1444 W. Garvey Avenue South • PO Box 1440 9 West Covina, CA 91793 • Telephone (626) 939-8425 • Fax (626) 939-8660 • t:ttrusz,thpeeaatuay �-=/ December 6, 2007 FINDINGS: The following is a summary of the pertinent items required in the Engineering and Traffic Survey. A. Prevailing Speeds (MPH) Street Se ent Iimrts Critical Approach Speeds 2007 Existing Recommended 2006 2007 10 mph Speed _.Speed.Limits 85% (m h) 85% (mph) Pace Limits Vine Avenue to I 47 I 43 I 35 to 44 I 45 mph I 40 mph Hillside Drive B. Accident Records The following analysis of the accident history for Citrus Street is in accordance with the procedures outlined in "Guidelines for Uniform Traffic Controls" distributed by the Los Angeles County Department of Public Works. The phrase "accident rate" shown in the column headings is defined as the number of accidents per million vehicles entering an intersection or per million vehicle miles along a street a street segment. The "County Expected Rate" is defined as the anticipated number of accidents that would generally occur at an intersection or along a segment,of highway with similar conditions. The County Expected Rate factors are calculated' from data derived from a series of charts using parameters such as intersection controls, traffic volumes, and approach conditions. These charts have been prepared by the Los Angeles County Department of Public Works based on the findings of a study of the accident records and traffic conditions throughout Los Angeles County. The City Rate is calculated using traffic volumes from the calendar year 1994 and recorded accident history. The Priority Rating is defined as the ratio of the City Rate to the County Expected Rate County guidelines classify as .excessive any accident rate that exceeds 1.6 times the County expected rate determined from the Countywide experience charts. If the City mid -block accident rates are in excess of the 1.6 times the County expected rate, a 5 mph reduction of the speed limit may be justified. This is to say that if the Priority Rating meets or exceeds 1.6, a 5-mph reduction of the speed limit from the critical approach. 'speed (85%) maybe justified. I December 6, 2007 1. MID -BLOCK ACCIDENTS - JANUARY 2006 TO DECEM 3ER 2006 NOTE: A NIVM denotes accidents per million vehicle miles 2. INTERSECTION ACCIDENTS - JANUARY 2006 TO DECEMBER 2006 County No. of. City Accident Expected : ` Priority' Goss Street .: Accidents, RateA%IV1V Accident Rate Rating Vine Avenue 0 0.0 0.34 0.0 Lark Hill Drive 0 0.0 0.35 0.0 Spring Meadow 1 0.80 .0.80 1.00 Hillside Drive 0 0.0 0.62 0.0 1v u 1 b: A/M v denotes accidents per million vehicles entering the intersection. C. Phvsical Conditions 1. Horizontal Alignment - The alignment of Citrus Street beginning at Vine Avenue, consists of a 260 feet radius curve with a length of 170 feet. Proceeding south the rest of the street alignment is made up of several horizontal curves with radii between 1,000 feet to 1,800 feet. 2. Vertical alignment - The maximum grade along the street profile is approximately 6.18%, except for the segment approaching Hillside Drive which is about 14.0% grade.. 3. Roadside Friction - The intersections at Lark Hill Drive is controlled by multi - way stop signs. The area along Citrus Street consists of residential and the golf course. D. There are no conditions that are not readily apparent to the driver UtrusStSpeedStudy 2007 December 6, 2007 E. Analvsis The first table entitled " Prevailing Speeds" list the critical approach speeds (85%) which is the primary component of Engineering and Traffic Survey. The critical approach speeds (85%) are listed for Citrus Street from Vine Avenue to Hillside Drive and is less than the posted speed limit. The collision records for 2006 show that none of the mid -block accident rates for this segment is excessive. With a critical approach speed of 43 miles per hour, the vertical and horizontal alignment of this street segment and the primary residential land use that abuts this segment would necessitate a reduction in the posted speed limit from 45 mile per hour to 40 miles per hour: The reduction in the speed limit in this segment of Citrus Street, would also provide a uniform speed limit of 40 mile per hour with the northerly segments from I-10 freeway to Vine Avenue. F. Conclusion Presently the posted speed limit for this segment of Citrus Street is 45 miles per hour and the critical approach speed was measured at 43 miles per hour. In accordance with the Manual. of Uniform Traffic Control Devices (MUTCD) 2003 California Supplement, speed limits should be established at the nearest 5 mph increment to the 85`h percentile speed, which is defined as that speed which 85 percent of the traffic is moving. In addition, the. vertical and horizontal alignment of this street segment and the primary land use that abuts this segment should be considered when establishing the speed limit. The adjacent segments of Citrus Street are set at' a limit of 40 miles per hour. Therefore, the reduction in the posted speed limit from 45 mile per hour to 40 miles per hour for Citrus Street from Vine Avenue and Hillside Drive will comply with the provision of the MUTCD 2003 California Supplement and will provide for a uniform speed the through out the length of Citrus Street. Shannon A. Yauchzee Public Works Director/City Engineer Citrus&SpeedStudy 2007 �qzz' "' EXP. 9-30-0M NO.49909 %n M OF C Pl '