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Home My WebLink AboutAgenda Report - September 7, 2011 C-15AGENDA ITEM Ce -1 1; CITY OF LODI COUNCIL COMMUNICATION TM AGENDA TITLE: Adopt Resolution Amending Traffic Resolution No. 97-148 by Approving a 35 -Miles -Per -Hour Speed Limit on Reynolds Ranch Parkway from Highway 99 Frontage Road to Harney Lane MEETING DATE: September 7, 2011 PREPARED BY: Public Works Director RECOMMENDED ACTION: Adopt resolution amending Traffic Resolution No. 97-148 by approving a 35 -miles -per -hour speed limit on Reynolds Ranch Parkway from Highway 99 Frontage Road to Harney Lane. BACKGROUND INFORMATION: Reynolds Ranch Parkway is a recently -constructed roadway. As such, accident history does not exist, and since the area is not fully developed, traffic volumes are estimated to reflect future conditions. Based on these factors, staff will continue to monitor the roadway in the event modifications are necessary. However, based on the data available at this time, staff recommends a 35 -miles -per -hour speed limit on Reynolds Ranch Parkway from Highway 99 Frontage Road to Harney Lane (Exhibit A). Curve warning signs and 30 -miles -per -hour advisory speed signs will be installed at both curves in the roadway. A•map showing speed limits on all surveyed streets within the City is attached as Exhibit B. FISCAL IMPACT: Normal maintenance only. FUNDING AVAILABLE: Not applicable as sign installation costs were included with roadway construction. A.", J'A"VC� F. Wally S delin Public Works Director Prepared by Rick S. Kiriu, Senior Engineering Technician FWS/RSK Attachments cc: City Attorney Police Chief Police Sergeant Jacobsen Senior Civil Engineer Chang WaterNVastewater Superintendent Street Supervisor Watson /_1Uu:Z60: 111111 radt Bartlam, City Manager K:\WP\TRAFFIC\SPDZONE\CReynoldsRanchPkwy.doc 8/29/2011 ENGINEERING 9 -pp sga sao• AND TRAFFIC SURVEY i"""'° �r SEE NARRATIVE FOR W1.2 �'� BACKGROUND INFORMATION W13.,(N R]•1(35) J LU , O W Wt 2 0: 2 W-1 (30l � Q 2 W4! w1a+(3o) S is W*2 HN/Y 99 FRONTAGE w+31(30) �h REYNOLDS RANCH PARKWAY SPEED TABLE ROADWAY WIDTH NO. OF LANES 2 w/Bike Lane 3 w/Bike Lane MEDIAN (TYPE) RAISED CONIC TRAFFIC SIGNAL DATA 60 Act 60iAct 60JAct AVERAGE DAILY TRAFFIC 7,000 (estimate) 17,000 (estimate) OBS. SPEED—CRITICAL,85th% NB 43 41 S B 38 41 —PACE(%) NB 37 37 S B 34 36 —MEDIAN,50th% NE 30-40(66) 31-41(75) SB 29-39(77) 30-40(72) EXISTING SPEED ZONE N/A PROPOSED SPEED ZONE 35 mph P M H SPEED GRAPH..LEGEND. -SIGN LOCATION ......... _ _......................_.. �1............. .....?...........?....?....?..._....._.... _.................. 1 1 ............_._...._.._....._........ ......................i..1. . ? 1 I ; i I........._..........._..—_.................... ..... .................... ...'. (LJ . ....I ....:.......... .i...Y... ...............I.............( ( I' 1 g�t; ' e RI -1 STOP SIGN 50.... . I . R2 -1 ( ) SPEED LBOSIGN MPH ... ... ... ... ..HT 1. .-... .-:._:._;... ...«......«.»... . __.__.__, .j...,..»...:-. :. �...1_. ...i.... ... ....:............... ... 44. -.j- - --1-.L-44 RI -2 -YIELD SIGN C -ASSEMBLY C (SCHOOL 2S MPH SIGN) 4 0 ...I...............I...I...I, i . . t . , _ . _ �.. ., _ _ _ �_ _ _ _ .. .,.�.`-.a,. ... _ ....t ,...{_ ,....(...r... .... _ III ! _ -Y _ ........... I i _I....1..:..:. _. _... tr d i I II....WI_.....I....{...5 ... ... ...............d... ...d._ _ ...i... ... ... i _ W13 1 -CURVE ADVISORY SPEED L� � f .. I ( ,..P I ! 1 ( TRAFFIC SIGNAL 30- ,..,_rte _ - - y _...µ....... ... ... ._ _. ...,_ - -CITY LIMIT ? - -CRITICAL SPEED ER LI IT OF PACE ...'............................'.......:... ... ... ...I ? ?LO i i i i i Ei_ .. a.. ... ... ....� _i.....1.... ......... ... ... .................!.._ ....�.... .... .... L...i...._.-i-... .. , I !!! !!! ACCIDENT PLOT YR: 2009 I N/A I N/A N/A YR:2010 0 1 0 0 ACCIDENT RATE—ACC./MILL. VEH.—MI. 0.0 0.0 0.0 CH: RSK �H, Revision PPr gpproved By CITY OF LODI REYNOLDS RANCH PKWY SPEED flNDate ZONE L20 TR 162�taHon Mgr/Sr Traffic Engineer oafs PUBLIC WORKS DEPARTMENT Hwy 99 Frontage to Harney SURVEY m x 01 September 2011 SPEED ZONE REPORT — Reynolds Ranch Parkway, Highway 99 Frontage Road to Harney Lane REFERENCE - Speed zone surveys are performed in the City of Lodi following the California MUTCD in accordance with Section 40802 (b) of the California Vehicle Code. STUDY CRITERIA - Important factors to consider in determining the speed limit which is most appropriate to facilitate the orderly movement of traffic and that is reasonably safe are: Prevailing Speeds (85th Percentile Speeds) - Reasonable speed limits conform to the actual behavior of the majority of motorists, and by measuring motorists' speeds, one will be able to select a speed limit that is both reasonable and effective. Speed limits should normally be established at the nearest five mile per hour (mph) increment to the 85th percentile speed. However, in matching existing conditions with the traffic safety needs of the community, engineering judgment may indicate the need for a further reduction of five mph. Accidents - Accident records for two recent years were considered in determining the speed zones. Accidents on segments of roadways are classified by their accident rate. Accident rates are determined by the number of accidents occurring within a segment of roadway and the traffic volume within that segment. Accident rates are shown in accidents per million vehicle miles (ACC/MVM). The average Citywide accident rate is 3.4 ACC/MVM. Unexpected Conditions — Highway, traffic, and roadside conditions not readily apparent to the driver were considered. When roadside development results in traffic conflicts and unusual conditions which are not readily apparent to drivers, speed limits below the 85th percentile may be justified. Other Factors - The following factors were considered: residential density, pedestrian & bicycle safety, roadway design speed, safe stopping sight distance, superelevation, shoulder conditions, profile condition, intersection spacing and offsets, commercial driveway characteristics and pedestrian traffic in the roadway without sidewalks. ° STUDY RESULT Four radar surveys were performed and the 85th percentile speeds ranged from 38 to 43 mph as shown below. Street Segment Hwy 99 Ftg to Le Baron Blvd. Le Baron Blvd. to Harney Lane Reynolds Ranch doc Northbound Southbound 43 mph 38 mph 41 mph 41 mph Highway 99 Frontage Road to Le Baron Boulevard The 85t percentile speeds on this segment are 38 and 43 mph. The 50th percentile speeds are 34 and 37 mph. There have been no accidents on this recently constructed street segment. Based solely on 85% speeds, the speed limit on this segment could be posted at 40 mph; however, based on bicycle and pedestrian safety, we recommend establishing a 35 mph speed limit on this segment. Le Baron Boulevard to Harney Lane The 85t percentile speed on this segment is 41 mph. The 50th percentile speeds are 36 and 37 mph. There have been no accidents on this recently constructed street segment. Based solely on 85% speeds, the speed limit on this segment could be posted at 40 mph; however, based on bicycle and pedestrian safety, we recommend establishing a 35 mph speed limit on this segment. CONCLUSION The recommended speed limits are shown below: Reynolds Ranch Pkwy Segment Hwy 99 Ftg to Le Baron Blvd Le Baron Blvd to Harney Lane Paula J. Fernandez Transportation Manager/Senior Traffic Engineer Reynolds Ranch.doc Posted Speed Limit 35 mph 35 mph EXHIBIT B POSTED SPEED LIMITS 0 Z Q WID Conal CITY LIMITS Q o� w w Of CITY 3 LIMITS 35 Q m o� 00 -C`a FILERS d �5: 35 _ 40 35 TURNER 40 1 5 0 1 Z30 0 <40) 30<3y0) (30> LJ �o�\\ U 30 35 35 PIONEER— �J m 40 45 Q 40af LOCKEFORD a 35 N 35 (25) 35 30 35 -(35?- 40 35 ELM 35}' 30 PINE ---- --- 25 _ � 25 VICTOR (HWY 12) 30 ----- 30 30 25 35- 30 25 30 35 35 35 40 rn --(40 40 LORI 30 35 o Q Of 45 25 51 CD U U 0TO 30 KAY 45 40 25 w HALE < I Of35 35 1 U) 35 VINE 30 VINE 1 0 30 a 40 z 35 35 40 m w 0 z = z U w J aY AUTO CENTER' 01 35 0 _ = o o' U H _ (I N U 45 —^ KETTLEMAN 35 35 45 (HWY 12) cn BRANDYWINE U 30 40 35 ALMOND �.J 45 45 CENTURY 4040 35 CENTURY 30 40 3 50 = s :J 35 y 30 F- 25 HARNEY 45 N Q = �_ p JO z 0 Z W CL Of 35 U *—NOT RADAR ENFORCEABLE REVISED. XXX 2011 LEGEND NOTE: The speed limits shown on this map are STREET WITId SPEED ZONE in miles per hour. The speed limit on streets (NON -LOCAL STREET) within the City not shown on this map ore ' `r_ "LOCAL" STREET WITH 25 miles per hour. `J SPEED ZONE (VC 40802) K:\UAIJlJkIKAffIU\bPCIIIM2U1U3• AAFFIC\SPDLIM2011.DWG RESOLUTION NO. 2011-142 A RESOLUTION OF THE LODI CITY COUNCIL AMENDING TRAFFIC RESOLUTION NO. 97-148 BY APPROVING A 35 -MILES -PER -HOUR SPEED LIMIT ON REYNOLDS RANCH PARKWAY FROM HIGHWAY 99 FRONTAGE ROAD TO HARNEY LANE WHEREAS, Reynolds Ranch Parkway is a recently -constructed roadway. As such, accident history does not exist, and since the area is not fully developed, traffic volumes are estimated to reflect future conditions; and WHEREAS, based on the data available at this time, staff recommends a 35 -miles -per -hour speed limit on Reynolds Ranch Parkway from Highway 99 Frontage Road to Harney Lane. NOW, THEREFORE, BE IT RESOLVED that the Lodi City Council does hereby approve a 35 -miles -per -hour speed limit on Reynolds Ranch Parkway from Highway 99 Frontage Road to Harney Lane; and BE IT FURTHER RESOLVEDthat the City of Lodi Traffic Resolution No. 97-148, Section 7, "Speed Limits," is hereby amended to set the speed , limit on Reynolds Ranch Parkway from Highway 99 Frontage Road to Harney Lane at 35 miles per hour. Dated: September 7, 2011 I hereby certify that Resolution No. 2011-142 was passed and adopted by the City Council of the City of Lodi in a regular meeting held September 7, 2011, by the following vote: AYES: COUNCIL MEMBERS — Hansen, Katzakian, Mounce, Nakanishi, and Mayor Johnson NOES: COUNCIL MEMBERS —None ABSENT: COUNCIL MEMBERS— None ABSTAIN: COUNCIL MEMBERS— None &JOHL City Clerk 2011-142