Loading...
HomeMy WebLinkAboutAgenda Report - August 2, 2006 K-04A" NDA #TM K f CITY of Low qPCOUNCIL COMMUNICATION TM AGENDATflllt.E: Adopt Revolution Amending Traffic ResoiuNon 97-148 by Approving Speed Linot Medificalions as Follows: • Reduce Century Boulevard between West City Limits and Ham Lane from 45 to 40 Mile* Per Hour • Increase Century Boulevard between Hutchins Street and Church Street from 20 to 30 Miles Per Hour • Increase Kettleman Lane between Beckman Road and East City Limits from 40 to 45 Miles Per Hour • Reduce Loma Drive between Elm Street and Lockeford Street from 30 to 25 Alias Per Hoar MEETIi O D+II4iTE: August 2, 2006 PRIIKPAIISD ISY: Public Wicks Director RECOMIOEMDED ACTION: That the City Council adopt a resolution amending Traffic Resolution 97-148 by approving speed limit modifications as follows (Exhibit A): • Reduce Century Boulevard between West City Limits and Ham Lane from 45 to 40 Miles Per Hour • Increfte Century Boulevard between Hutchins Street and Church Street from 25 to 30 Miles Per Hour • Increase Kettleman Lane between Beckman Road and East City Limits from 40 to 45 Mlles Per Hour • Reduce Loma Drive between Elm Street and Lockeford Street from 30 to 25 Miles Per Hour BACKGIINOUNID INFORMATION: Per the California Vehicle Code (CVC), E=ngineering and Traffic Surveys must be updated a minimum of every five years on all "non -local" streets. "Non -local" streets are collector and arterial streets included in the Federal Aid System. Streets with surveys that have exceeded five years cannot be radar enforced by the Police Department. The Police Department relies on these surveys not only for speed enforcement purposes, but for use in the courtroom in the event of a dispute from the person cited. The posting of speed limits are also coordinated with the Police Department due to their field expertise. In accordance with the CVC, speed limits on the following eleven streets have been surveyed based on the time frame (5 years) from the last survey: • Century Boulevard • CluffAvenue, Lodi Avenue to Turner Road • Eiler* Lane • Ham Lane • Holly Drive • Kett*man Lane, Highway 99 to East City Limits • Lockeford Street • Loma Drive • Rutledge Drive • Sacramento Street, Lodi Avenue to Turner Road • Stockton Street In accordhnce with CVC Section 40802 (b), Engineering and Traffic Surveys are performed in the City of Lodi following -the Federal Highway Administration Manual on Uniform Traffic Control Devices (MUTCD) Cakfornis Supplerrlisnt. Important factors to consider in determining the speed limit, which is most appropriate to facilitate=the orderly movement of traffic and reasonably safe, are: Pr aili Perc2ofle s — Reasonable speed limits conform to the actual behavior of the majoritymotorists, 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 5 mph increment to the 85th percentile speed. However, in matching existing conditions with the traffic safety needs of the commurdty, engineering judgment may indicate the need for a further reduction of 5 mph. APPROVED: fm _ Blair KdNk, City Manager J:ITRAFF)CZSpeedLim1t2006.doc 7i2fi/Z)06 Adopt Resolution Amending TrefffG Resolution 97-148 by Approving Speed Limit Modifications as Follows; • Reduce Century Boulevard between West City Limits and Ham Lane from 45 to 40 Miles Per Hour • Increase Century Boulevard between Hutchins Street and Church Street from 25 to 30 Miles Per Hour • Increase Kettleman Lane between Beckman Road and East City Limits from 40 to 45 Miles Per Hour • Reduce Loma Drive between Elm Street and Lockeford Street from 30 to 25 Miles Per Hour August 2, 2006 Page 2 Ac — Accident records for two recent years are considered in determining the speed zones. Accidents on ee is of roadways are c6assified by their accident rate. Accident rates are determined by the number of aecideWs occurring within a segment of roadway and the traffic volume within that segment. Accident rates are shower in accidents per milthDn vehicle miles (ACCIMVM). The average Citywide accident rate is 3.8 ACC&AVM. Un e d n &ons — Highway, traffic, and roadside conditions not readily apparent to the driver are also consider*. When roadside development results in traffic conflicts and unusual conditions which are not readily a0parent to drivers, speed limits below the 85th percentile may be justified. In addition to the three primary factors described above, the following characteristics are also considered: • Residential density Shoulder conditions • Pederian and bicycle safely Profile condition • Roadi[ ay des4n speed Intersection spacing and offsets • Safe stopping sight distance Commercial driveway characteristics • Super evation Pedestrian traffic in the roadway without sidewalks ©ISCUSIK)IMECOMMENDAMN: In May 2004, Califomia adopted a new traffic manual which included changes In some of the guidelines used to establish speed limits. The major change was the relationship between the 85"' percentile speed and selected speed limit. The previous guidelines indicated speed limits should normally be established at the first 5 mph increment below the 85th percentile speed. The current guidelines indicate speed limits should be established at the nearest 5 mph increment to the 85th percentile speed. While this change could potentially raise speed limits by 5 mph, the new guidelines consider residential density and bicycle and pedestrian safety as reasons to reduce speed limits. Therefore, in many cases, these changes offset each other, resulting in little effect on existing speed limits. A map showing existing and proposed speed limits is attached as Exhibit B. While most of Lockeford Street was surveyed, the portion of Lockeford Street between Church Street and Stockton Street is due to be surveyed, but was not due to the current construction of a traffic signal at the intersection of Sacramento Street. This portion will be surveyed following the completion of the traffic signal this summer. Until then, the posted 30 mph speed limit will not be radar enforceable. FISCAL IMPACT: None. FLINDINO AVAfLABLE: Funding for the modifications to speed limit signs and pavement legends from the Street Maintenancen ct.c �oAccount at an approximate cost of $2,070. . i .<. k Ruby P e, Interim f=inance Director Richard C. Prima, Jr. Public Works Director Prepowed by. -Rick S. Kiriu, Senior Engineving Technician RCP*SWP.W' Attachrnerf cc: City Al*ney Police Chief City Engineer Street pe6ntendent Senior Traffic Engineer Police Sergeant Carillo J:7RAFFIC%(MpeedLim1t2OO6.doc 7/25/206 August 2006 gEEED ZONE REPORT - Century Boulevard ° REFERENCE — Speed zone surveys are performed in the City of Lodi following the Federal Highway Administration MUTCD and MUTCD California Supplement 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 165th 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 3.8 ACC/MVM. Unex cted Cond' Vons — 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 and 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 Ten radar surveys were performed and the 85th percentile speeds ranged from 33 to 48 mph as shown below. Street Segment Lower Sacramento Road to Mills Avenue Mills Avenue to Ham Lane Ham Lane to Hutchins Street Hutchins Street to Church Street Stockton Street to Cherokee Lane Eastbound Westbound 47 mph 48 mph 44 mph 42 mph 40 mph 40 mph 34 mph 33 mph 41 mph 42 mph Lower Sacra_mentg Road to Mills Avenue The 85th percentile speeds on this segment are 47 and 48 mph. The 50th percentile speeds are 42 and 44 mph. The west portion of this segment of Century Boulevard was extended to Lower Sacramento Road in December of 2005. There were no accidents occurring on this segment since that time. The portion extended to Lower Sacramento Road was constructed to one-half of the future width J;ITRAFFICISPDZONEICENTURY2006.doe SPEED ZONE REPORT - Century Boulevard, West City Limits to Cherokee Lane Page 2 when fully developed and lacks sidewalk. Based solely on prevailing speeds, the speed limit could be set at 45 mph; however, due to the roadside conditions with no sidewalks, lack of accident history, and bicycle safety, we recommend a 40 mph speed limit in this segment. Mills Avenue to Hen Lane The 85th percentile speeds on this segment are 42 and 44 mph. The 50th percentile speeds are 37 and 38 mph. The accident rate of 2.3 on this segment is below the Citywide average and higher than the 0.8 rate from the 2002 survey. Based on prevailing speeds, we recommend reducing the speed limit in this segment from 45 to 40 mph. Ham Lane to Hutchins Street The 85th percentile speed on this segment is 40 mph. The 50th percentile speed is 35 mph. The accident rate of 5.2 on this segment is above the Citywide average but lower than the 5.7 rate from the 2002 survey. Based solely on prevailing speeds, the speed limit could be posted at 40 mph; however, due to the continuing higher than average accident rate and bicycle safety, we recommend retaining the 35 mph speed limit in this segment. Hutchins Street to Church Street The 85th percentile speeds on this segment are 33 and 34 mph. The 50th percentile speeds are 29 and 31 mph. The accident rate of 3.8 on this segment is equal to the Citywide average and lower that the 6.2 rate from the 2002 survey. Based solely on prevailing speeds, the speed limit could be posted at 35 mph; however, based on residential density and bicycle safety, we recommend a 30 mph speed limit in this segment. Stockton Street to Cherokee Lane The 85th percentile speeds on this segment are 41 and 42 mph. The 50th percentile speed is 37 mph. The accident rate of 0.8 on this segment is below the Citywide average and higher than the 0.0 rate from the 2002 survey. Based on prevailing speeds and continuing low accident rate, we recommend retaining the 40 mph speed limit in this segment. CONCLUSION The recommended speed limits are shown below: STREET SEGMENT Lower Sacramento Road to Mills Avenue Mills Avenue to Ham Lane Ham Lane to Hutchins Street Hutchins Street to Church Street Stockton Street at Cherokee Lane F. Wally Sandelin City Engineer CENTURY2006.doc POSTED SPEED LIMIT 40 mph 45 to 40 mph 35 mph (no change) 25 to 30 mph 40 mph (no change) August 2006 SPEED ZONE REPORT - Kettleman Lane, Highway 99 to East City Limits ° REFERENCE — Speed zone surveys are performed in the City of Lodi following the Federal Highway Administration MUTCD and MUTCD California Supplement 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: Prevaihnq Speeds 25th 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 3.8 ACC/MVM. Unexpected Conditgns -- 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 and 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 RESULTS Four radar surveys were performed and the 85th percentile speeds ranged from 33 to 53 mph as shown below: Street Segment Highway 99 to Beckman Road (north) Beckman Road (north) to East City Limits J:ITRAFFIC1sPDZON E%Kettleman2oo6b.doe Eastbound Westbound 39 mph 33 mph 53 mph 49 mph SEED ZONE REPORT - Kettleman Lane Page 2 - Highway 99 to BeASman Rg@d .(north) The 85th percentile speeds on this segment are 33 and 39 mph and the 50th percentile speeds are 28 and 34 mph. The accident rate of 1.8 in this segment is lower than the Citywide average and below the 5.5 rate from the 2001 survey. Based on prevailing speeds and reasonable accident rate at the current speed limit, we recommend retaining the 35 mph speed limit in this segment. Beckman Road (north) to East City Limits The 85 percentile speeds on this segment are 49 and 53 mph. The 50t" percentile speeds are 42 and 48 mph. The accident rate of 0.8 is significantly lower than the Citywide average and similar to the 0.6 rate from the 2001 survey. Based solely on the 85' percentile speeds, the speed limit on this segment could be set at 50 mph; however, the speed limit west of Beckman Road is 35 mph and the county speed limit east of the city is 45 mph. This would result in a relatively short 50 mph speed limit section in between two lower speed limits. Based on these factors, we recommend a 45 mph speed limit in this segment. CONCLUSION The recommended speed limits are shown below: STREET SEGMENT Highway 99 to Beckman Road Beckman Road to East City Limits F. Wally Sandelin City Engineer J1TRAFFIMSPOZON EWettleman2006b. doc POSTED SPEED LIMIT 35 mph (no change) 40 to 45 mph August 2006 §fEgD ZONE REPORT - Loma Drive ° REFERENCE - Speed zone surveys are performed in the City of Lodi following the Federal Highway Administration MUTCD and MUTCD California Supplement 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 185th 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 3.8 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 RESULTS Four radar surveys were performed and the 85th percentile speeds ranged from 28 to 37 mph as shown below: Street §Segment Elm Street to Lockeford Street Lockeford Street to Turner Road Loma2006b. doe Northbound Southbound 28 mph 30 mph 37 mph 35 mph SPEED ZONE REPORT - Loma Drive Page 2 _,-- Elm &2gt to Locksford Street The 85th percentile speeds on this segment are 28 and 30 mph. The 50th percentile speeds are 25 and 27 mph. The accident rate of 32.9 is significantly higher than the citywide average and the 0.0 rate from the 2001 survey. Based solely on the 85th percentile speeds, the speed limit could be set at 30 mph; however, due to the high accident rate and residential density, we recommend reducing the speed limit from 30 to 25 mph in this segment. Lockeford Street tg Turner Road The 85th percentile speeds on this segment are 35 and 37 mph. The 50th percentile speeds are 31 and 32 mph. The accident rate of 3.0 is below the Citywide average. There were no accidents during the previous survey performed in 2001. Based solely on the 85'h percentile speeds the speed limit could be set at 35 mph; however, due to the increased accident rate and residential density, we recommend retaining the 30 mph speed limit in this segment. ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT Elm Street to Lockeford Street Lockeford Street to Turner Road F. Wally Sandelin City Engineer Lw,92006b. doc POSTED SPEED LIMIT 30 mph to 25 mph 30 mph (no change) .yC I TY OF LO Do'PUBLIC WORKS DEPARTMENT Exhibit B POSTED SPEED LIMITS 0 z W Q Cn U z Q � d S w U O O O o � EILFR5L -0� � J d = 0 4 5 5 TURNER I 4 1 �I z � 1 j' 3�� z r n I `g`�� n 0 <4Q1 PIONEER Y Y w 25� 4 w J 40 YLOCKEFORQ �� 3 f (25) ELM 5 VVCTOR HWY 12) 30 PINE 45 0 -0 •- 4 0 4 o ° 0 5 LDDI 5 of J v 0 5 10 a n TOKAY 45 4 � 0 0 ?VINE HALE VINEz VINE , 0 � J Y z = 40 m U w U 5 Cf 0 w POPLAR w s V) 5 s r v oY wrr = V o w KETTLEMAN v N = U (HWY 12 4Q 4 4 BRANDYWINE 0 l--�4 4 �s ~4 5ALMOND ----c`ar`---- CENTURY 40 30 Z HARNEY /,4 o a vi LEGEND STREET WITH SPEED ZONE Proposed Speed `NON -LOCAL STREET' Limit Modifications _4`� "LOCAL" STREET WITH `J SPEED ZONE (VC 40802) PRIMA FACIE LIMITS APPLY TO STREETS NOT SHOWN - ALL "LOCAL" STREETS RESOLUTION NO. 2006-151 A RESOLUTION OF THE LODI CITY COUNCIL APPROVING SPEED LIMIT MODIFICATIONS ON CENTURY BOULEVARD AND KETTLEMAN LANE, AND THEREBY AMENDING TRAFFIC RESOLUTION NO. 97-148 WHEREAS, pursuant to §40802(b) of the California Vehicle Code, engineering and traffic surveys must be updated a minimum of every five years on all "non -local" streets. "Non -local" streets are collector and arterial streets included in the Federal Aid System, and speed limits on streets where surveys are older than five years cannot be enforced using radar; and WHEREAS, based on the results of the speed survey recently performed, staff recommends the speed limit modifications as follows: Strg S2gM Century Boulevard between Hutchins Street and Church Street 25 to 30 mph Kettloman Lane between Beckman Road and east City limits 40 to 45 mph NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Lodi does hereby approve the speed limit modifications on portions of Century Boulevard and Kettleman Lane as shown above; and BE IT FURTHER RESOLVED that the City of Lodi Traffic Resolution No. 97-148, Section 7, "Speed Limits," is hereby amended by designating speed limit modifications as shown above. Dated: August 2, 2006 I hereby certify that Resolution No. 2006-151 was passed and adopted by the City Council of the City of Lodi in a regular meeting held August 2, 2006, by the following vote: AYES: COUNCIL MEMBERS — Beckman, Hansen, .Johnson, and Mayor Hitchcock NOES: COUNCIL MEMBERS — Mounce ABSENT: COUNCIL MEMBERS -- None ABSTAIN: COUNCIL MEMBERS — None �rURERRIN Interim City Clerk 2006-151 RESOLUTION NO. 2006-152 A RESOLUTION OF THE LODI CITY COUNCIL APPROVING SPEED LIMIT MODIFICATIONS ON CENTURY BOULEVARD AND LOMA DRIVE, AND THEREBY AMENDING TRAFFIC RESOLUTION NO. 97-148 WHEREAS, pursuant to §40802(b) of the California Vehicle Code, engineering and traffic surveys must be updated a minimum of every five years on all "non -local' streets. "Non -local" streets are collector and arterial streets included in the Federal Aid System, and speed limits on streets where surveys are older than five years cannot be enforced using radar; and WHEREAS, based on the results of the speed survey recently performed, staff recommends the speed limit modifications as follows: Strep Seamen Century Boulevard between west City limits and Ham Lane 45 to 40 mph Loma Drive between Elm Street and Lockeford Street 30 to 25 mph NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Lodi does hereby approve the speed limit modifications on portions of Century Boulevard and Loma Drive as shown above; and BE IT FURTHER RESOLVED that the City of Lodi Traffic Resolution No. 97-148, Section 7, "Speed Limits," is hereby amended by designating speed limit modifications as shown above. Dated: August 2, 2006 I hereby certify that Resolution No. 2006-152 was passed and adopted by the City Council of the City of Lodi in a regular meeting held August 2, 2006, by the following vote: AYES: COUNCIL MEMBERS — Beckman, Hansen, Johnson, Mounce, and Mayor Hitchcock NOES: COUNCIL MEMBERS -- None ABSENT: COUNCIL MEMBERS — None ABSTAIN: COUNCIL MEMBERS — None NNIFER PERRIN nterim City Clerk- 2006-152