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Home My WebLink AboutAgenda Report - May 17, 2006 E-09AGEMDA ITM &14 CITY of LOBI COUNCIL COMMUNICATION TMS ACT TITLE: Adopttl*n ARVINUftig Traft Resolullion 97-145 My ApWovft the 44*d LinMt Vis, which Rices the Sp5ed Limit fry 35 to 36 ill Fter Hour 06 Brarrdpwine and Inc the Speed LIm t from 44 to 45 utiles Per Hour oh Pine Street, from Guild Avenue to Bast City Limits MEETINO DATE: May 17, 2006 PRIIIPAD BY: Public Forks 011rector RECQ114ENWO ACTION: That the City Council adopt a resolution amending Trak Resolution 97-148 by approving the speed limit modifications, which reds *ie speed limit from 35 to 30 mites per hour on Brandywine and increa0es the speed limit from 40 to 45 miles per hour on Pine Street, from Guild Avenue to East City Limits, as shown on the attached Engineering and Traffic Surveys (Exhibit A). BAGKG$KXlD INFORMATION. FORMATION. Per the California Vehicle Code (CVC) Engineering and Traffic Surveys must be updated a minimum of every five years on all "non -local" streets. "Non -local" streets are cotlector 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 Departmint 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 ten streets have been surveyed: Blackman Road • Bondywinle Drive • Q ifornia $treet, Lock#ord Street to Turner Road • ( rtral Awtue, Kettle wn Lane to Lodi Avenue • C erokee Lane • Church Stmet • Ern Street • F chkm Street • Pie Skeet • TOkay Street In accordjllince with CVC Sectil n 40802 (b), Engineering and Traffic Surveys are performed in the City of. Lodi follc*ing the Federal Higl! way Administration Manual on Unilbrm Traffic Control Devices (III UTCD) Californi =Sent. The thilowing important factors to consider in determining the speed limit, which is most a pproprialte to facilltatek the orderly movement of traffic and reasonably safe are: Pre ill S2" (85th P r le s - Reasonable speed limits conform to the actual behavior of the maj of mdorists, and measuring motorists' speeds, one will be able to select a speed limit than is both reasonable and effective. Speed limits should normally be established at the nearest 5 mph incremertt to the 85th percentille 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 5 mph. APPROVED: Blair Ki ity (Manager J:ITRAFFIC1�peed limit mod 2006.doc 5/1012006 Adopt Resolution Amending Traffic Resolution 97-148 by Approving the Speed Limit Modifications, whigh Reducer the Speed Limit from 35 to 30 Mfles Per Hour on Brandywine and Increases the Speed Limit from 40 to 45 Mites Per Hour on Pine Street, from Guild Avenue to East City Limits May 17, 2006 Page 2 AcGide* - Accident records ODr two rent years are considered in determining. the speed zones. Accidenk on segrrients of roadways are classified by their accident rate. Accident rates are determined by the nWnber of accidents o4curring 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 3.9 ACC/MVM, Un t - HigOway, traffic, and roadside conditions not readily apparent to the driver are also coroldered. When road4de development results in traffic conflicts and unusual conditions, which are not load€liy apparent to driers, speed limits below the 85th percentile may be justified. In addition to the three primary factors described above, the following characteristics are also considered: • *sidentiatl density • Flodestrian and bicycle safety • Iadwoy design speed •SWe ske pong sight d4ance • ,valtivn • Moulder oondioons • Aoffie condition • lr rsiectim spacing affil offsets • clpl driveway 4haradedsfics • Piodeaftwii traft in Noroadway without sidewalks DISCU ENDAt : In May 2004, California adopted a new trafAc manual which included j1hariges In some of tie guidelirnes used to establish speed limits. The n r change was the nelaflonsl p men the 85'"jorcentile speed and selected speed limit. The previous guidelines indicate&Speed limits should ro nay 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, th1e new guidelines corsider 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 affect on existing speed limits. A map showing existing and proposed speed limits is attached as Exhibit B. Basest on the study results, staff recommends City Council approve the speed limit modifications on Brandywine Drive from 35 to 30 mph and on Pine Street from Guild Avenue to east City limits from 40 to 45 mph. The portion of Central Avenue between Kettleman Lane and Vine Street will be reviewed again after bike lanes are installed later this year to determine if any changes in speed limits are warranted. FISCAL IMPACT: None FUPONI AVAILABLE: Ft,rnding for the modifications to speed limit signs and pavement legends from the Street Maintenance Account at an approximate cost of $950. - 11440, K. JOAZJV RWy Vote, lnteoKFinance Direr Prepared by dick S. Kiri�a, Senior Engineedrtig Technician RCPASKIp* AttachMents cc: C1ty Aey street tendeot JATRAFFimcoibed Rm#t mod 2006.doc Richard C. N Public Works Police Chief Senior Traffic Engineer City Engineer Police Sergeant Carillo 5H 21200 Exhibit A May 2006 SPEED ZONE REPORT — Brandywine 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 (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 3.9 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 speed ranged from 34 to 37 mph, as shown below: Street Segment Ham Lane to Hutchins Street Brandywine2006.doc Eastbound Westbound 34&35 mph 34&37 mph SPEED ZONE REPORT - Brandywine Drive Page 2 Ham Lane to Hutchins Street The 85th percentile speeds on this segment range from 34 to 37 mph. The 50th percentile speeds range from 31 to 33 mph. The accident rate of 5.0 is above the Citywide average and higher than the 1.5 rate from the 2001 survey. Based on the significant increase in accident rate and residential density, we recommend reducing the speed limit from 35 to 30 mph on this segment. ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT Ham Lane to Hutchins Street F. Wally Sandelin City Engineer Brandywine2006.doc POSTED SPEED LIMIT 35 to 30 mph May 2006 SPEED ZONE REPORT - Pine Street, Ham Lane 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: 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 3.9 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 Sixteen radar surveys were performed and the 85th percentile speeds ranged from 28 to 44 mph as shown below: Street Segment Ham Lane to Hutchins Street Hutchins Street to Church Street Church Street to Stockton Street Stockton Street to Central Avenue Central Avenue to Cherokee Lane Cherokee Lane to Beckman Road Beckman Road to Guild Avenue Guild Avenue to East City Limits Pine2006.doc Eastbound Westbound 35 mph 34 mph 31 mph 28 mph 28 mph 29 mph 32 mph 33 mph 35 mph 35 mph 31 mph 32 mph 38 mph 40 mph 43 mph 44 mph SPEED ZONE REPORT - Pine Street Page 2 Ham Lane to Hutchins Street The 85th percentile speeds on this segment are 35 and 36 mph. The 50th percentile speed is 30 mph. The accident rate of 5.7 in this segment is higher than the citywide average and below the 10.0 rate from the 2001 survey. Based solely on 85th percentile speeds, the speed limit could be set at 35 mph; however, due to the continuing high accident rate and residential density, we recommend retaining the 30 mph speed limit in this segment. Hutchins Street to Church Street The 85th percentile speeds on this segment are 28 and 31 mph. The 50th percentile speeds are 25 and 26 mph. The accident rate of 3.0 in this segment is higher than the citywide average and below the 7.0 rate from the 2001 survey. Based on the reduced accident rate at the current speed limit and residential density, we recommend retaining the 30 mph speed limit in this segment. Church Street to Stockton Street This portion of Pine Street consists of three segments. The only segment long enough to survey vehicle speeds is the portion from Sacramento Street to Stockton Street. The 85th percentile speeds on this segment are 28 and 29 mph. The 50th percentile speeds are 24 and 25 mph. The accident rate of 4.6 in this segment is higher than the citywide average and below the 9.0 rate from the 2001 survey. Based solely on 85th percentile speeds, the speed limit could be set at 30 mph; however, due to reduced accident rate at the current speed limit, we recommend retaining the 25 mph in this segment. Stockton Street to Central Avenue The 85th percentile speeds on this segment are 32 and 33 mph. The 50th percentile speeds are 29 and 30 mph. The accident rate of 10.0 in this segment is significantly higher than the citywide average and below the 14.6 from the 2001 survey. Based solely on the 85th percentile speeds, this segment could be posted at 30 mph; however, due to the continuing high accident rate and residential density, we recommend retaining the 25 mph speed limit in this segment. Central Avenue to Cherokee Lane The 85th percentile speed on this segment is 35 mph. The 50th percentile speed is 31 mph. The accident rate of 8.3 in this segment is significantly higher than the citywide average but below the 12.1 rate from the 2001 survey. Based solely on the 85th percentile speeds, the limit could be set at 35 mph; however, due to the continuing high accident rate and residential density, we recommend retaining the 30 mph speed limit in this segment. Pine2006.doc SPEED ZONE REPORT - Pine Street Page 3 Cherokee Lane to Beckman Road The 85th percentile speeds on this segment are 31 and 32 mph. The 50th percentile speed is 27 mph. The accident rate of 2.7 in this segment is lower than the citywide average and below the 12.8 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 reduced accident rate at the current speed limit, we recommend retaining the 25 mph speed limit in this segment. Beckman Road to Guild Avenue The 85th percentile speeds on this segment are 38 and 40 mph. The 50th percentile speeds are 33 and 34 mph. The accident rates of 6.1 in this segment is higher than the citywide average and above the 3.2 rate from the 2001 survey. Based solely on the 85th percentile speeds, the speed limit could be set at 40 mph; however, due to the increased accident rate at the current speed limit, we recommend retaining the 35 mph speed limit in this segment. Guild Avenue to East City Limits The 85th percentile speeds on this segment are 43 and 44 mph. The 50th percentile speeds are 37 and 38 mph. There have been no reported accidents occurring in this segment. Based on the 85th percentile speeds and absence of accidents, we recommend increasing the speed limit on this segment from 40 to 45 mph. ° CONCLUSION The recommended speed limits are shown below: SEGMENT Ham Lane to Hutchins Street Hutchins Street to Church Street Church Street to Stockton Street Stockton Street to Central Avenue Central Avenue to Cherokee Lane Cherokee Lane to Beckman Road Beckman Road to Guild Avenue Guild Avenue to East City Limits F. Wally Sandelin City Engineer Pine2006.doc POSTED SPEED LIMIT 30 mph (no change) 30 mph (no change) 25 mph (no change) 30 mph (no change) 30 mph (no change) 25 mph (no change) 35 mph (no change) 40 to 45 mph y OFA CITY OF LODIPUBLIC WORKS DEPARTMENT Exhibit B POSTED SPEED LIMITS 0 Z W U W N Q � 0 2 W o 0 U 0O O 0 3 3 L EILERS-4`01~ TURNER a 1 V/ 50 40 T 40 \ 1 Z �i3gf z o f j ` 0 t40> z I w � A � 1 �O�CY Q O 5 W PIONEER Y Y u ; O of Y (30) `�� X25) 40 m v 40 1 YLOCKEFORD �� r �a U 45 ELM 0 PINE VICTOR (HWY 12) 45 0 -0 4 40 0 30 p 35 � U LODI 0 5 o 0 TOKAY 5 4 (40) p30 4O HALE ' 1 J /1 VINE VINEZ VINE —1 30 a J Y Z w v w POPLAR Y x ver 0 0 W 2 0 w KETTLEMAN N 5 T U Lou (HWY 12) 4 40 40 BRANDYWINE N� 4 O 40 ALMOND = CENTURY 4 3 5 40 3d 5 HARNEY 45 o � 3 � d vi LEGEND _o- STREET WITH SPEED ZONE Proposed Speed (NON -LOCAL STREET) r, Limit Modifications "LOCAL" STREET WITH SPEED ZONE (VC 40802) PRIMA FACIE LIMITS APPLY TO STREETS NOT SHOWN - ALL "LOCAL" STREETS RESOLUTION NO. 2006-93 A RESOLUTION OF THE LODI CITY COUNCIL APPROVING SPEED LIMIT MODIFICATIONS ON BRANDYWINE DRIVE AND ON PINE STREET FROM GUILD AVENUE TO EAST CITY LIMITS, THEREBY AMENDING TRAFFIC RESOLUTION NO. 97-148 WHEREAS, speed zone surveys are performed in the City of Lodi following State of California Department of Transportation (Caltrans) guidelines in accordance with Section 40802(b) of the California Vehicle Code, which are outlined in Chapter 8 of the Caltrans Traffic Manual, and the Federal Highway Administration MUTCD and MUTCD California Supplement; and WHEREAS, per §40802(b) of the California Vehicle Code, Engineering and Traffic Surveys must be updated a minimum of every five years on "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 thanfive years cannot be enforced using radar; and WHEREAS, the Public Works Department recently performed Engineering and Traffic Surveys on the following streets: Beckman Road, Brandywine Drive, California Street — Lockeford Street to Turner Road, Central Avenue — Kettleman Larne to Lodi Avenue, Cherokee Lane, Church Street, Elm Street, Hutchins Street, Pine Street, and Tokay Street; and WHEREAS, staff recommends speed limit modifications as follows: Street SeamExistina Propolo Brandywine Drive 35 mph 30 mph Pine Street from Guild Avenue to east City lim*s 40 mph 45 mph NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Lodi does hereby approve the proposed speed limit modifications on Brandywine Drive and Pine Street 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: May 17, 2006 _---------- ________________________________________--__--_--______---_--_ I hereby certify that Resolution No. 2006-93 was passed and adopted by the City Council of the City of Lodi in a regular meeting held May 17, 2006, by the following vote: AYES: NOES: ABSENT: COUNCIL MEMBERS — Beckman, Hansen, Johnson, and Mayor Hitchcock COUNCIL MEMBERS — Mounce COUNCIL MEMBERS — None ABSTAIN: COUNCIL MEMBERS — None SUSAN J. BLACKSTON City Clerk 2006-93 CITY COUNCIL CITY OF L O D I SUSAN HITCHCOCK, BLAIR KING, Mayor p� City Manager BOB JOHNSON, •1 SUSAN J. BLACKSTON, Mayor Pro Tempore City Clerk JOHN BECKMAN + LARRY D. HANSEN - D. STEPHEN SCHWABAUER, JOANNE MOUNCE PUBLIC WORKS DEPARTMENT City Attorney CITY HALL, 221 WEST PINE STREET 1 P,O. BOX 3006. RICHARD C. PRIMA, JR., LODI, CALIFORNIA 95241-1910 Public Works Director TELEPHONE (209) 333-6706 / FAX (209) 333-6710 EMAIL pwdept@lodi.gov http://www.lodi.gov May 11, 2006 Mr. Don Klade 915 Brandywine Drive Lodi, CA 95240 SUBJECT: Adopt Resolution Amending Traffic Resolution 97-148 by Approving the Speed Limit Modifications, which Lowers the Speed Limit from 35 to 30 Miles Per Hour on Brandywine Drive and Increases the Speed Limit from 40 to 45 Miles Per Hour on Pine Street from Guild Avenue to East City Limits Enclosed is a copy of background information on an item on the City Council agenda of Wednesday, May 17, 2006. The meeting will be held at 7 p.m. in the City Council Chamber, Carnegie Forum, 305 West Pine Street. This item is on the consent calendar and is usually not discussed unless a Council Member requests discussion. The public is given an opportunity to address items on the consent calendar at the appropriate time. If you wish to write to the City .Council, please address your letter to City Council, City of Lodi, P. O. Box 3006, Lodi, California, 95241-1910. Be sure to allow time for the mail. Or, you may hand -deliver the letter to City Hall, 221 West Pine Street. If you wish to address the Council at the Council Meeting, be sure to fill out a speaker's card (available at the Carnegie Forum immediately prior to the start of the meeting) and give it to the City Clerk. If you have any questions about communicating with the Council, please contact Susan Blackston, City Clerk, at 333-6702. If you have any questions about the item itself, please call Rick Kiriu, Senior Engineering Technician — Traffic, at 333-6800, extension 2668. Richard C. Prima, Jr. �Q r • Public Works Director RCP/pmf Enclosure cc: Qty Cleric J:ITRAFFICWCspeed limit mad 2006.doe