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Home My WebLink AboutAgenda Report - June 15, 2022 C-214 CITY OF 0 CALIFORNIA AGENDA ITEM ICO21 COUNCIL COMMUNICATION AGENDA TITLE: Adopt Resolution Amending Traffic Resolution No. 97-148, by Approving Setting of 35 Miles -Per -Hour Speed Limit on Century Boulevard from West City Limits to Lower Sacramento Road and on Westgate Drive from Century Boulevard to Kettleman Lane, Setting of 30 Miles -Per -Hour Speed Limit on Lebaron Boulevard from Stockton Street to Reynolds Ranch Parkway, and Approving Speed Limit Modifications on Lodi Avenue from 50 to 45 Miles -Per -Hour from the West City Limits to Rose Gate Drive, and on Lockeford Street from 35 to 30 Miles -Per -Hour from Mills Avenue to Church Street MEETING DATE: June 15, 2022 PREPARED BY: Public Works Director RECOMMENDED ACTION: Adopt Resolution Amending Traffic Resolution No. 97-148, by Approving Setting of 35 Miles -Per -Hour Speed Limit on Century Boulevard from West City Limits to Lower Sacramento Road and on Westgate Drive from Century Boulevard to Kettleman Lane, Setting of 30 Miles -Per -Hour Speed Limit on Lebaron Boulevard from Stockton Street to Reynolds Ranch Parkway, and Approving Speed Limit Modifications on Lodi Avenue from 50 to 45 Miles -Per -Hour from the West City Limits to Rose Gate Drive, and on Lockeford Street from 35 to 30 Miles -Per -Hour from Mills Avenue to Church Street. BACKGROUND INFORMATION: Staff recently reviewed Engineering and Traffic Surveys (ETS) on the following five streets: Century Boulevard, Westgate Drive, Lebaron Boulevard, Lodi Avenue, and Lockeford Street. The segments referenced above of Century Boulevard, Lebaron Boulevard, and Westgate Drive have recently been constructed. Based on the State -mandated requirements, staff is recommending setting the speed limit to 35 mph on Century Boulevard, from the west City limits to Lower Sacramento Road; and on Westgate Drive, from Century Boulevard to Kettleman Lane (Exhibit A) and setting the speed limit to 30 mph on Lebaron Boulevard, from Stockton Street to Reynolds Ranch Parkway (Exhibit B). Staff also recommends reducing the speed limit from 50 to 45 mph on Lodi Avenue, from the west City limits to Rose Gate Drive (Exhibit C) and reducing the speed limit from 35 to 30 mph on Lockeford Street, from Mills Avenue to Church Street (Exhibit D). No other changes are recommended for the remaining segments of Lodi Avenue and Lockeford Street. The ETS includes three primary factors when establishing posted speed limits: prevailing speeds, accident rates, and unexpected conditions. Other characteristics, such as residential density, pedestrian and bicycle safety, and roadway design speed, are also considered. Police Department staff concurs with Staff's recommendations. As shown in the ETS's (Exhibit E), the recommended posted speed limits are based on the prevailing speeds (85'" percentile speeds), residential density, pedestrian safety and accident rate similar to the Citywide average rate. All the updated ETS are on file in the Public Works Department. APPROVED: Steve Schwabauer Stephen Schwabauer, City Manager \\cvcfilv02\pubwks$\TRAFFIC\SPEE DZN\CC - ETS\cspeedsurvey2022 doc 5/25/2022 Adopt Resolution Amending Traffic Resolution No 97-148, by Approving Setting of 35 Miles -Per -Hour Speed Limit on Century Boulevard from West City Limits to Lower Sacramento Road and on Westgate Drive from Century Boulevard to Kettleman Lane, Setting of 30 Miles -Per -Hour Speed Limit on Lebaron Boulevard from Stockton Street to Reynolds Ranch Parkway, and Approving Speed Limit Modifications on Lodi Avenue from 50 to 45 Miles -Per -Hour from the West City Limits to Rose Gate Drive, and on Lockeford Street from 35 to 30 Miles -Per -Hour from Mills Avenue to Church Street June 15, 2022 Page 2 FISCAL IMPACT: Normal maintenance only. FUNDING AVAILABLE: Funding for the sign and legend installation/removal is from the Street Maintenance Account (30156002), totaling approximately $3,500. a-ZA0 Charles E. Swimley, Jr. Public Works Director Prepared by Teri Mangrich, Engineering Technician CES/DK/TM Attachment cc: City Attorney Utility Superintendent Police Chief Police Sgt., Garcia Deputy Public Works Director/City Engineer Sr. Traffic Engineer, Kam Engineering Technician, Mangrich \\cvcfilv02\pubwks$\TRAFFIC\SPEEDZN\CC - ETS\cspeedsurvey2022 doc 5/25/2022 EXHIBIT A N CENTURY BOULEVARD w / ' E & WESTGATE DRIVE Legend NEW 35 MPH ZONE 0.058D.0275 0 S 0.055 Miles 35 MPH ZONE Path: G:\ESRI Maps\Traffic\Exhibits\Century & Westgate SP Zone Map.mxd Legend 30 MPH ZONE EXHIBIT B N LEBARON BOULEVARD w E MAL An NEW 30 MPH ZONE 0.03 0.015 0 S 0.03 Miles Path: G:\ESRI Maps\Traffic\Exhibits\Lebaron Blvd SP Zone Map.mxd rAppl wood Dr: - y 40 • 5 �'', f � ami f Z Belmont Dr. ,0 22z '- .Celebration Dr. �o f' .I C Artistry,St. -L E P1 Li -0 ,3:!"Rard7an�ceSt. -jAmbrosia 1=T 4 N = , nt Sargent Rd. ° LOC Ag - Ma -- _Concerto St. d Concerto Ct•_ • Fir IL ~yA r _ - O. Ly Creeksic.Dr. v o �.lTiffany,St. E If, m �. Av. L di ca Valencia St. : _ _ c L � , L) • Ashton St. ' • � Diablo Dr. r- Carrousel- -. rn � m a� as d Corbin Ln. w Elegance St. N Tokay St. � � Tokay St. d � v W d Charlotte St. 0 Source. Em, DigiUalGlobe, GeoEye, Earthetar Geographies, CNE / irbus V DS, USDA, USES, AeroGRID, IGN, and the Gi -User Community N EXHIBIT C w/ ' E LODI AVENUE Legend REDUCE TO 45 MPH 0.058D.0275 0 s 0.055 Miles 45 MPH ZONE Path: G:\ESRI Maps\Traffic\Exhibits\LODI SP Zone Map.mxd ..k ,, j��w+ a' • �r '` VIEW ♦ ,TT�?il/_� �T•'gj9�,T�7y� I.O. b An e r' ..• ` 'i --tit OR01.0 athlIsm '�N r'' ,r v » ` �•_ 1, IL v SII ♦ ti � • • • � k'' �, y r+4� .. � • r i � ovNam Mora f 1 .1646 .v� :• , J__-_ r�� . `� lid}r ,yl ^ • ry .4'\'�9 �,� t • ,� ta&ik AW r 1 v qL 9� �' „•1g �• ph -,, if �'.''. ^`� � • S - �- - • all ! ,r ■ -" �`.00,��o D o o•- -o -o " Q(P -oo .o 9�° o��D'o 11�[JJ�nO IN OCA - r of t nom- _ Nom¢ oo u�i u ROW June 2022 SPEED ZONE REPORT - Century Boulevard, West City Limits to Lower Sacramento Road ° REFERENCE - Speed zone surveys are performed in the City of Lodi following the California MUTCD in accordance with Section 40802 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 3.1 ACC/MVM. Unexpected Conditions — 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. 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 Two radar surveys were performed and the 85th percentile speeds ranged from 36 to 39 mph as shown below. Street Segment Eastbound Westbound West City Limits to Lower Sacramento Rd 39 mph 36 mph West City Limits to Lower Sacramento Road The 85th percentile speeds on this segment are 36 and 39 mph. The 50th percentile speeds are 32 and 33 mph. The accident rate of 2.5 is lower than the Citywide average. Based solely on the 85th percentile speed, the speed limit could be set at 40 mph, however, due to residential density, the community park, lower accident rate, and bicycle safety, we recommend setting the speed limit to 35 mph in this segment. Century2022.doc SPEED ZONE REPORT - Century Boulevard, West City Limits to Cherokee Lane Page 2 ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT West City Limits to Lower Sacramento Road (Dorothy) Pui Man Kam Sr. Traffic Engineer Century2022.doc POSTED SPEED LIMIT 35 mph ENGINEERING 0 AND TRAFFIC SURVEY C/)0 2,640' ° SEE NARRATIVE FOR p� w BACKGROUND INFORMATION 0 o w } 0-1w Q U o � Q Z j Of O R1-1 R1-1 1 m w U R1-1 I R1-1 � = R1-1 J R1-1 R1-1 R1-1 CENTURY BLVD. 0 1/2 MILE (V SPEED TABLE ROADWAY WIDTH 52' NO. OF LANES 2 w/bike lanes MEDIAN (TYPE) NONE TRAFFIC SIGNAL DATA 80ACT AVERAGE DAILY TRAFFIC 200 2190 OBS. SPEED-CRITICAL,85th% EB 39 WB 36 -PACE(%) EB 27-36(74) WB 26-35(79) -MEDIAN,50th% EB 33 WB 32 EXISTING SPEED ZONE N/A PROPOSED SPEED ZONE 35 MPH LEGEND: MPH SPEED GRAPH T -SIGN LOCATION R1-1 -STOP SIGN R2-1() -SPEED LIMIT SIGN (MPH) 40- R1-2 -YIELD SIGN C -ASSEMBLY C Cri I D e (SCHOOL 25 MPH SIGN) W1 -X -CURVE WARNING SIGN 30 W13 -1O -CURVE ADVISORY SPEED1 O-ROUNDABOUT TRAFFIC SIGNAL 20 CITY LIMIT 9 is sign CRITICAL SPEED -LOWER LIMIT OF PACE ACCIDENT PLOT YR: 2020 0 0 YR: 2021 1 1 ACCIDENT RATE - ACC. / MILL. VEH. - MI. 2.5 DR: TM No. Date Revision Appr Approved By Date • CITY OF LODI . PUBLIC WORKS DEPARTMENT CENTURY BLVD. CITY LIMITS TO LOWER SACRAMENTO SPEED ZONE SURVEY °H DK DATE: JUNE 2022 TR2715cEngineer •, June 2022 SPEED ZONE REPORT — Westgate Drive, Kettleman Lane to Century Boulevard ° REFERENCE - Speed zone surveys are performed in the City of Lodi following the California MUTCD in accordance with Section 40802 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 3.1 ACC/MVM. Unexpected Conditions — 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. 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 36 to 39 mph as shown below. Street Segment Century Blvd. to McIntosh Dr. McIntosh Dr. to Kettleman Ln. Northbound Southbound 38 mph 39 mph 42 mph 40 mph Century Boulevard to McIntosh Drive The 85th percentile speeds on this segment are 38 and 39 mph. The 50th percentile speed is 34 mph. There have been no accidents on this new street segment. Based solely on the 85th percentile speed, the speed limit could be set at 40 mph; however, based on the residential density, the nearby community park, and pedestrian and bicycle safety, we recommend setting the speed limit to 35 mph in this segment. W estgate2022.doc SPEED ZONE REPORT - Westgate Drive, Kettleman Lane to Century Boulevard Page 2 McIntosh Drive to Kettleman Lane The 85th percentile speeds on this segment are 40 and 42 mph. The 50th percentile speed is 36 mph. The accident rate of 4.7 is higher than the Citywide average. Based solely on the 85th percentile speed, the speed limit could be set at 40 mph; however, based on residential density, pedestrian safety, commercial driveways, and bicycle safety, we recommend setting the speed limit to 35 mph in this segment. ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT Century Blvd. to McIntosh Dr. McIntosh Dr. to Kettleman Ln. (Dorothy) Pui Man Kam Sr. Traffic Engineer W estgate2022.doc POSTED SPEED LIMIT 35 mph (setting speed limit) 35 mph (setting speed limit) 11777nl/nIn111771177n1nl/n LIVVIIVLLI\IIVV AND TRAFFIC SURVEY 1,290' 1,350 J SEE NARRATIVE FORz LLI T_ BACKGROUND INFORMATION O O F p W Z Q I— W 0 Lu � Ury TI I TI i R1-1 R1-1 WESTGATE DRIVE 1/2 MILE SPEED TABLE ROADWAY WIDTH 40' 52'- 78' NO. OF LANES 2 w/ Bike Lane 3 w/ Bike Ln. MEDIAN (TYPE) None Raised Concrete TRAFFIC SIGNAL DATA 80ACT AVERAGE DAILY TRAFFIC 1,560 2,270 OBS. SPEED-CRITICAL,85th% NB 38 42 SIB 39 40 -PACE(%) NB 28-37(73) 31-40(70) SB 28-37(76) 31-40(80) -MEDIAN,50th% NB 34 36 SIB 34 36 EXISTING SPEED ZONE N/A N/A PROPOSED SPEED ZONE 35 mph 35 mph LEGEND: MPH SPEED GRAPH T -SIGN LOCATION R1-1 -STOP SIGN R2-1() -SPEED LIMIT SIGN (MPH) 50 R1-2 -YIELD SIGN C -ASSEMBLY C (SCHOOL 25 MPH SIGN) W1 -X -CURVE WARNING SIGN 40 W13-1() -CURVE ADVISORY SPEED O-ROUNDABOUT -TRAFFIC SIGNAL 30 111111 111111 IIIL.L -CITY LIMIT - -CRITICAL SPEED -LOWER LIMIT OF PACE ACCIDENT PLOT YR: 2020 0 0 YR: 2021 0 2 ACCIDENT RATE - ACC. / MILL. VEH. - MI. 0.0 4.7 DR: TM No. Date Revision Appr Approved By 0 CITY OF LODI WESTGATE DRIVE SPEED CH: DK Sr Traffic Engineer Date PUBLIC WORKS DEPARTMENT CENTURY BLVD. TO KETTLEMAN LN. ZONE SURVEY DgTE: JUNE 2022 TR 2715 June 2022 SPEED ZONE REPORT — Lebaron Drive, Stockton St to Reynolds Ranch Pkwy ° REFERENCE - Speed zone surveys are performed in the City of Lodi following the California MUTCD in accordance with Section 40802 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 3.1 ACC/MVM. Unexpected Conditions — 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. 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 Two radar surveys were performed and the 85th percentile speeds were 35 mph as shown below. Street Segment Eastbound Westbound Stockton St. to Reynolds Ranch Pkwy. 35 mph 35 mph Stockton Street to Reynolds Ranch Parkway The 85th percentile speed on this segment is 35 mph. The 50th percentile speed is 32 mph. There have been no accidents on this new street segment. Based solely on the 85th percentile speed, the speed limit could be set at 35 mph, however, due to nearby senior housing, bicycle safety, residential density, and the low accident rate, we recommend setting the speed limit to 30 mph in this segment. Lebaron2022.doc SPEED ZONE REPORT - Lebaron Drive, Stockton St to Reynolds Ranch Pkwy Page 2 ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT POSTED SPEED LIMIT Stockton Street to Reynolds Ranch Parkway 30 mph (Dorothy) Pui Man Kam Sr. Traffic Engineer Lebaron2022.doc ENGINEERING AND TRAFFIC SURVEY 1,000, o SEE NARRATIVE FOR Oz Z U BACKGROUND INFORMATION O w Q Y � � O U) R1-1 R1-1 Q LEBARON BLVD _j LU Q> 1/5 MILE SPEED TABLE ROADWAY WIDTH 44' NO. OF LANES 2 w/bike lanes MEDIAN (TYPE) NONE TRAFFIC SIGNAL DATA 50ACT AVERAGE DAILY TRAFFIC 1,210 OBS. SPEED-CRITICAL,85th% EB 35 WB 35 -PACE(%) EB 28-37(85) WB 26-35(84) -MEDIAN,50th% EB 32 WB 32 EXISTING SPEED ZONE N/A PROPOSED SPEED ZONE 30 MPH LEGEND: MPH SPEED GRAPH T -SIGN LOCATION R1-1 -STOP SIGN R2-1() -SPEED LIMIT SIGN (MPH) ,/ 4 0 R1-2 -YIELD SIGN C -ASSEMBLY C I I D e (SCHOOL 25 MPH SIGN) W1 -X -CURVE WARNING SIGN 30 W13-1() -CURVE ADVISORY SPEED O-ROUNDABOUT -TRAFFIC SIGNAL 20 CITY LIMIT CRITICAL SPEED -LOWER LIMIT OF PACE ACCIDENT PLOT YR: 2020 0 YR: 2021 0 ACCIDENT RATE - ACC. / MILL. VEH. MI. 0.0 DR: TM No. Date Revision Appr Approved By Traffic Engineer Date • CITY OF LODI . PUBLIC WORKS DEPARTMENT LEBARON BLVD STOCKTON TO REYNOLDS RANCH PKWY SPEED ZONE SURVEY °H DK DATE: JUNE 2022 TR2715 •, June 2022 SPEED ZONE REPORT - Lodi Avenue, West City Limits to Lower Sacramento Road ° REFERENCE - Speed zone surveys are performed in the City of Lodi following the California MUTCD in accordance with Section 40802 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 3.1 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 43 to 53 mph as shown below. Radar surveys were not performed between intersections that were too close together to record free flowing traffic conditions. Street Segment West City Limits to Rose Gate Drive Rose Gate Drive to Lower Sacramento Rd K:\TRAFFIC\SPEEDZN\2022\Lodi2O22.doc Eastbound Westbound 53 mph 45 mph 43 mph 43 mph SPEED ZONE REPORT - Lodi Avenue, West City Limits to Lower Sacramento Road Page 2 West City Limits to Rose Gate Drive The 85th percentile speeds on this segment are 45 and 53 mph. Per the California Manual for Setting Speed Limits, if the difference between the 85th percentile speeds is 5 mph or more in the opposing directions, the data from both directions may be averaged. The average of both 85th percentile speeds is 49 mph. The 50th percentile speeds are 47 and 40 mph. The accident rate of 1.5 on this segment is below the Citywide average and higher than the 0.0 rate from 2015 survey. Based solely on prevailing speeds, the speed limit could be set at 50 mph; however, based on the residential density, pedestrian safety, and bicycle safety, we recommend reducing the speed limit to 45 mph in this segment. Rose Gate Drive to Lower Sacramento Road The 85th percentile speeds on both segment are 43 mph. The 50th percentile speed ranged from 38 to 39 mph. The accident rate of 0.6 on this segment is below the Citywide average and lower than the 0.9 rate from the 2015 survey. Based solely on prevailing speeds, the speed limit could be set at 45 mph; however, based on commercial driveways, bike safety, and the continuing low accident rate at the current speed limit, we recommend retaining the 40 mph speed limit along this segment. ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT West City Limits to Rose Gate Drive Rose Gate Drive to Lower Sacramento Road (Dorothy) Pui Man Kam Senior Traffic Engineer K:\TRAFFIC\SPEEDZN\2022\Lodi2O22.doc EXISTING SPEED LIMIT 50 mph 40 mph POSTED SPEED LIMIT 45 mph no change 11777nl/nIn111771177n1nl/n I 0� r, LIVVIIVLLI\IIVV [r LJ AND TRAFFIC SURVEY LU Q w 2 m SEE NARRATIVE FOR � w w w � BACKGROUND INFORMATION 2 LUO Q a O Q 0 J a J U) 0� >_ 1,100' 1,520' 11111 4�Rl-2 U17 L D LU_ LL N W Z o > (D LODI AVE. ui w J � > J U m w [)� 1/2 MILE SPEED TABLE ROADWAY WIDTH 40' 72' Varies 48'-64' NO. OF LANES 2+bike lane 3+bike lane 4 MEDIAN (TYPE) None on I Raised Concretel None TRAFFIC SIGNAL DATA 80ACT AVERAGE DAILY TRAFFIC 4,515 7,370 9,760 OBS. SPEED-CRITICAL,85th% EB 53 43 WB 45 43 -PACE(%) EB 43-52(60) 31-40(74) WB 35-44(74) 34-43(84) -MEDIAN,50th% EB 47 38 WB 40 39 EXISTING SPEED ZONE 55 mph Count 50 mph 1 40 mph PROPOSED SPEED ZONE 55 mph (County) 45 mph 40 mph LEGEND: MPH SPEED GRAPH T -SIGN LOCATION R1-1 -STOP SIGN R2-1() -SPEED LIMIT SIGN (MPH) 50 R1-2 -YIELD SIGN C -ASSEMBLY C (SCHOOL 25 MPH SIGN) W1 _x -CURVE WARNING SIGN 40 W13-1() -CURVE ADVISORY SPEED O-ROUNDABOUT -TRAFFIC SIGNAL 30 i—TT CITY LIMIT — — — — — — — — — — — — — -CRITICAL SPEED —11 — — — — — — — —11FI—Ell -LOWER LIMIT OF PACE I I I I Nff 1 H1 — — — — — ACCIDENT PLOT YR: 2020 0 1 YR: 2021 1 0 ACCIDENT RATE - ACC. / MILL. VEH. - MI. 1.5 0.6 DR: TM No. Date Revision Appr Approved By°H:DK Sr Traffic Engineer TR 2715West Date CITY OF LODI 0 .9 PUBLIC WORKS DEPARTMENT D.. LODI AVE City Limits to Lower Sacramento SPEED ZONE SURVEYJUNE 2022 June 2022 SPEED ZONE REPORT - Lockeford Street ° REFERENCE - Speed zone surveys are performed in the City of Lodi following the California MUTCD in accordance with Section 40802 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 3.1 ACC/MVM. Unexpected Conditions — 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. 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 Fourteen radar surveys were performed and the 85th percentile speeds ranged from 34 to 41 mph as shown below: Street Segment Eastbound Westbound Mills Avenue to Ham Lane 37 mph 37 mph Ham Lane to California Street 35 mph 36 mph California Street to Church Street 37 mph 37 mph Church Street to Sacramento Street 35 mph 34 mph Sacramento Street to Stockton Street 34 mph 35 mph Stockton Street to Cherokee Lane 41 mph 41 mph Cherokee Lane to Guild Avenue 40 mph 39 mph Lockeford2022.doc SPEED ZONE REPORT - Lockeford Street Page 2 Mills Avenue to Ham Lane The 85th percentile speed on this segment is 37 mph. The 50th percentile speeds are 33 and 34 mph. The accident rate of 1.7 in this segment is less than the citywide average and lower than the 2.7 rate from the 2013 survey. Based solely on prevailing speeds, the speed limit could be set at 35 mph; however, based on the residential density, nearby school, pedestrian safety at bus stops and bike route, we recommend reducing the speed limit to 30 mph in this segment. Ham Lane to California Street The 85th percentile speeds on this segment are 35 and 36 mph. The 50th percentile speed is 32 mph. The accident rate of 2.9 in this segment is lower than the citywide average and higher than the 0.7 rate from the 2013 survey. Based solely on prevailing speeds, the speed limit could be set at 35 mph; however, based on the residential density, location of the school, and pedestrian safety at bus stops, we recommend reducing the speed limit to 30 mph in this segment. California Street to Church Street The 85th percentile speed on this segment is 37 mph. The 50th percentile speeds are 33 and 34 mph. The accident rate of 3.4 is slightly higher than the citywide average and slightly higher than the 3.2 rate from the 2013 survey. Based solely on prevailing speeds, the speed limit could be set at 35 mph; however, based on the commercial driveways, pedestrian safety at bus stops, and bike routes, we recommend reducing the speed limit to 30 mph in this segment. Church Street to Sacramento Street The 85th percentile speeds on this segment are 34 and 35 mph. The 50th percentile speeds are 31 and 32 mph. The accident rate of 2.0 in this segment is lower than the citywide average rate and the 3.6 rate from the 2013 survey. Based solely on prevailing speeds, the speed limit could be set at 35 mph; however, based on the low accident rate, residential density, and commercial driveways, we recommend retaining the 30 mph speed limit in this segment. Sacramento Street to Stockton Street The 85th percentile speeds on this segment are 34 and 35 mph. The 50th percentile speeds are 31 and 32 mph. The accident rate of 0.0 is below the city wide average and less than the 1.7 rate from the 2013 survey. Based on prevailing speeds, the speed limit could be set at 35 mph; however, and based on the low accident rate, commercial driveways, and bike safety, we recommend retaining the 30 mph speed limit in this segment. Stockton Street to Cherokee Lane The 85th percentile speed on this segment is 41 mph. The 50th percentile speeds are 36 and 37 mph. The accident rate of 0.4 is below the citywide average and below the 2.3 rate from the 2013 survey. Based on the prevailing speed, the speed limit could be set at 40 mph; however, based on the reduced accident rate and bicycle safety, we recommend retaining the 35 mph speed limit on this segment. Lockeford2022.doc SPEED ZONE REPORT - Lockeford Street Page 3 Cherokee Lane to Guild Avenue The 85th percentile speeds on this segment are 39 and 40 mph. The 50th percentile speed is 35 mph. The accident rate of 0.0 in these segments is lower than the citywide average and lower than the 2.0 rate from the 2013 survey. Based solely on prevailing speeds the speed limit could be posted at 40 mph; however, based on the lack of sidewalks in many locations, commercial driveway characteristics, and low accident rate at the current speed limit, we recommend retaining the 35 mph speed limit on this segment. ° CONCLUSION The recommended speed limits are shown below: STREET SEGMENT Mills Avenue to Ham Lane Ham Lane to California Street California Street to Church Street Church Street to Sacramento Street Sacramento Street to Stockton Street Stockton Street to Cherokee Lane Cherokee Lane to Guild Avenue (Dorothy) Pui Man Kam Senior Traffic Engineer Lockeford2022.doc EXISTING SPEED LIMIT 35 mph 35 mph 35 mph 30 mph 30 mph 35 mph 35 mph POSTED SPEED LIMIT 30 mph 30 mph 30 mph no change no change no change no change 177AIf-%IAI1717171IAIf-% L�Vy�I�LL��vv 2650' 2300' 1650' 800' 800' 2350' 2400' 1300' AND TRAFFIC SURVEY W i Q W'a o Z W LU H 2 a Q w c z J W o SEE NARRATIVE FOR BACKGROUND INFORMATION w w a ai Q z 3 = o w o z > o 0 U) z o Df LU 0 Q w Q w J Cn 27 LU ._ LLI z LU U U = M O� LL Rli IJI R!7 -1I I RiT-1I Ri-1 T ■I LL af U� = RT R1-1 Ri-1 W 0 d' 0' z Q Q d K U Q d Q (n > U = W 1-1 U -. J I� Cn fn R1-1 I RTI F R1_1 R1-1 RT Ri-1 R1 -11_i I� L Li 11 l l F LLI R1 R F R 1 1 R 1 I' Q LU U O J Z it tY O U LOCKEFORD ST 1/2 MILE 1/2 MILE 1/2 MILE 1/2 MILE 1/2 MILE SPEED TABLE ROADWAY WIDTH 39' - 60' -f- 42' -1 52'F-- 42'----1 53' F-- 60'---+- 58' 50'- 54' 40' 20' NO. OF LANES 2 4 2 ---i 2 + BK LN F- 2 + TWLT / BK LN 2 MEDIAN (TYPE) NONE TRAFFIC SIGNAL DATA 60ACT 20FIXED 20ACT 60ACT 60ACT AVERAGE DAILY TRAFFIC 4,960 7,720 7,850 9,230 (8,840) 8,450 1,260 160 OBS. SPEED-CRITICAL,85th% EB 37 35 37 35 34 41 40 WB 37 36 37 34 35 41 39 -PACE(%) EB 28-37(76) 28-37(90) 29-38(89) 28-37(91) 26-35(81) 32-41(75) 30-39(70) WB 28-37(83) 27-36(80) 28-37(85) 26-35(91) 27-36(88) 30-39(73) 28-37(77) -MEDIAN,50th% EB 33 32 34 32 31 37 35 WB 34 32 33 31 32 36 35 EXISTING SPEED ZONE 35 MPH 30 MPH 35 MPH PROPOSED SPEED ZONE 30 MPH 30 MPH 35 MPH LEGEND: MPH SPEED GRAPH T -SIGN LOCATION R1-1 -STOP SIGN R2-1() -SPEED LIMIT SIGN (MPH) 40- R1-2 -YIELD SIGN EB C -ASSEMBLY C lip 11 11111 1 11 111 1 1 11 11111 (SCHOOL 25 MPH SIGN) W1 -X -CURVE WARNING SIGN 30 W13-1() -CURVE ADVISORY SPEED O-ROUNDABOUT -TRAFFIC SIGNAL 20 -CITY LIMIT - -CRITICAL SPEED -LOWER LIMIT OF PACE ACCIDENT PLOT YR: 2020 0 1 1 2 1 2 0 0 1 0 0 YR: 2021 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 ACCIDENT RATE - ACC. / MILL. VEH. - MI. 1.7 2.9 3.4 2.0 0.0 0.4 0.0 0.0 DR: TM No. Date Revision Appr Approved By Sr. Traffic Engineer Date TR 2715 • CITY OF LODI PUBLIC WORKS DEPARTMENT LOCKEFORD ST. Mills Ave to Guild Ave SPEED ZONE SURVEY CH: DK Dare: JUNE 2022 RESOLUTION NO. 2022-160 A RESOLUTION OF THE LODI CITY COUNCIL AMENDING TRAFFIC RESOLUTION NO. 97-148 BY APPROVING SETTING OF 35 MILES -PER - HOUR SPEED LIMIT ON CENTURY BOULEVARD FROM WEST CITY LIMITS TO LOWER SACRAMENTO ROAD AND ON WESTGATE DRIVE FROM CENTURY BOULEVARD TO KETTLEMAN LANE; SETTING OF 30 MILES - PER -HOUR SPEED LIMIT ON LEBARON BOULEVARD FROM STOCKTON STREET TO REYNOLDS RANCH PARKWAY; AND APPROVING SPEED LIMIT MODIFICATIONS ON LODI AVENUE FROM 50 TO 45 MILES PER HOUR FROM THE WEST CITY LIMITS TO ROSE GATE DRIVE, AND ON LOCKEFORD STREET FROM 35 TO 30 MILES PER HOUR FROM MILLS AVENUE TO CHURCH STREET WHEREAS, staff recently reviewed Engineering and Traffic Surveys (ETS) on the following five streets: Century Boulevard, Westgate Drive, Lebaron Boulevard, Lodi Avenue, and Lockeford Street; and WHEREAS, the segments referenced above of Century Boulevard, Lebaron Boulevard, and Westgate Drive have recently been constructed; and WHEREAS, based on the State -mandated requirements, staff is recommending setting the speed limit to 35 mph on Century Boulevard, from the west City limits to Lower Sacramento Road, and on Westgate Drive, from Century Boulevard to Kettleman Lane and setting the speed limit to 30 mph on Lebaron Boulevard, from Stockton Street to Reynolds Ranch Parkway; and WHEREAS, staff also recommends reducing the speed limit from 50 to 45 mph on Lodi Avenue, from the west City limits to Rose Gate Drive, and reducing the speed limit from 35 to 30 mph on Lockeford Street, from Mills Avenue to Church Street; and WHEREAS, staff recommends amending Traffic Resolution No. 97-148 by approving setting of 35 miles -per -hour speed limit on Century Boulevard from west City limits to Lower Sacramento Road and on Westgate Drive from Century Boulevard to Kettleman Lane, setting of 30 miles -per -hour speed limit on Lebaron Boulevard from Stockton Street to Reynolds Ranch Parkway, and approving speed limit modifications on Lodi Avenue from 50 to 45 miles per hour from the west City limits to Rose Gate Drive, and on Lockeford Street from 35 to 30 miles per hour from Mills Avenue to Church Street. NOW, THEREFORE, BE IT RESOLVED that the Lodi City Council does hereby amend Traffic Resolution No. 97-148 by approving setting of 35 miles -per -hour speed limit on Century Boulevard, from west City limits to Lower Sacramento Road, and on Westgate Drive, from Century Boulevard to Kettleman Lane; setting of 30 miles -per -hour speed limit on Lebaron Boulevard, from Stockton Street to Reynolds Ranch Parkway; and approving speed limit modifications on Lodi Avenue from 50 to 45 miles per hour from the west City limits to Rose Gate Drive, and on Lockeford Street from 35 to 30 miles per hour from Mills Avenue to Church Street. Dated: June 15, 2022 I hereby certify that Resolution No. 2022-160 was passed and adopted by the City Council of the City of Lodi in a regular meeting held June 15, 2022, by the following vote: AYES: COUNCIL MEMBERS — Hothi, Khan, Kuehne, and Mayor Chandler NOES: COUNCIL MEMBERS — None ABSENT: COUNCIL MEMBERS — Nakanishi ABSTAIN: COUNCIL MEMBERS — None OLIVIA NASHED City Clerk 2022-160