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HomeMy WebLinkAbout2016-12-05; Traffic Safety Commission; ; Information Only - Cassia Road Traffic Calming CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: December 5, 2016 ITEM NO. 6C-1 Page 1 LOCATION: Cassia Road Traffic Calming INITIATED BY: Eric Osterberg 1710 Fairlead Ave Carlsbad, CA 92011 STAFF RECOMMENDATION: Information Only BACKGROUND: Staff has heard various traffic concerns on Cassia Road between Poinsettia Lane and El Camino Real and has been working with residents to address those concerns. Cassia Road serves as a highly traveled connection between Poinsettia Lane and El Camino Real. The concerns reported to staff included high speeds on Cassia Road as well on the 90 degree turn at Poinsettia Lane, the presence of and excessive noise from oversize trucks, and the lack of available pedestrian crossings. Staff has implemented various improvements to address these concerns and is currently implementing a traffic calming plan for the corridor that utilizes performance-based practical design elements including cost-effective traffic circles. DATA: Cassia Road is classified as a Local/Neighborhood Street according to the Mobility Element of the Carlsbad General Plan. It serves as the existing connection for eastbound and westbound traffic traveling between Poinsettia Lane and El Camino Real (See Exhibit 1). According to the Mobility Element, Poinsettia Lane is classified as an Arterial Connector Street in the proximity of Cassia Road, while El Camino Real is classified as an Arterial Street. Although Cassia Road is classified as a Local/Neighborhood Street, the unconstructed section of Poinsettia Lane between Cassia Road and Skimmer Court/Oriole Court diverts traffic to Cassia Road and as a result, it functions as an Arterial Connector. Cassia Road has a curb-to-curb width of 40 feet. The roadway is fully improved with curb, gutter, sidewalk and street lights on both sides of the road. The roadway is striped with painted centerline and a bike lane in each direction. Parking is currently prohibited on both sides of Cassia Road. The speed limit on Cassia Road between EL Camino Real and Poinsettia Lane is currently posted at 35 miles per hour. The speed zone is based on a valid Engineering and Traffic Survey conducted in 2013. There are approximately 8,000 vehicles a day that travel on Cassia Road between Poinsettia Lane and El Camino Real. CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: December 5, 2016 ITEM NO. 6C-1 (continued) Page 2 In response to reported concerns of the 90 degree curve on Poinsettia Lane at Cassia Road, staff has completed the following improvements:  Reconfiguration of the eastbound left turn on Poinsettia Lane at Cassia Road  Curve warning signs and speed advisory plates (15 mph) for each direction of travel  Concrete barriers installed along the outside of the curve  Bike lanes and pedestrian travel routed behind concrete barriers to provide protection for bicyclists and pedestrians In response to concerns about vehicle speeding on Cassia Road, staff has completed the following improvements:  Vehicle lane narrowing via installation of bike lanes in both directions  “35” pavement legends installed to augment posted speed limit signs  Two permanent speed feedback signs installed, one for each direction of travel In response to concerns about excessive noise from oversize trucks on Cassia Road, staff has completed the following improvements:  Installation of truck prohibition signs on Cassia Road, Poinsettia Lane and El Camino Real  Police Department notification of companies in violation of truck prohibition On August 9, 2016, city staff met with residents to discuss on-going concerns about speeding on Cassia Road. At this meeting, staff committed to preparing a traffic calming plan for Cassia Road using cost-effective traffic calming measures such as painted traffic circles, similar to what was implemented on Kelly Drive in the vicinity of Kelly Elementary School. Key objectives of the proposed traffic calming plan include 1) lowering speeds on the corridor by introducing traffic calming features at regularly-spaced intervals, 2) not penalizing drivers traveling at the speed limit, 3) using devices that are self-enforcing, 4) improving the roadway environment for all users, and 5) enhancing the residential character of the roadway. To meet these objectives and address resident concerns on the corridor, a traffic calming plan for the corridor was drafted that included three traffic circles. CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: December 5, 2016 ITEM NO. 6C-1 (continued) Page 3 An important factor for the success of traffic calming projects is the spacing of features at regular intervals of approximately 500 feet to 700 feet. This spacing encourages consistent, low speeds on the corridor and discourages drivers from speeding between devices. It also encourages overall compliance by avoiding a roadway experience that may be irritating to drivers. Based on the recommended spacing, cost-effective traffic circles were proposed at Kalmia Circle (West), Kalmia Circle (East), and Nicolia Drive. The reverse curve between Kalmia Circle (East) and Nicolia Drive functions similarly to a traffic calming “chicane” and this portion of Cassia Road has been historically where the lowest speeds have been measured. In order to enhance the traffic calming characteristics of this reverse curve, staff is planning to relocate the existing speed feedback signs to help reduce speeds even more. (See Exhibit 2) The traffic circles are performance-based practical elements and will be constructed using striping and supplemented with ceramic domes. Painted extensions will narrow the roadway while providing horizontal deflection to reduce speed. Large, reflectorized ceramic domes (8” diameter with a 3” height) are designed to encourage compliance and accommodate the turning movements of larger vehicles. Curb ramps will be constructed for pedestrian use and also to allow bicyclists to and use the sidewalk to bypass each traffic circle. YIELD-control provided on each approach will improve vehicular access from the side streets and pedestrian crossings at the intersections. On October 18, 2016, a public meeting was held at the Dove Library Auditorium. Over 800 notifications were mailed out to residents two weeks in advance of the meeting date and approximately 50 residents attended the meeting. Staff presented the proposed traffic calming plan and gave residents an opportunity to provide feedback on the proposed plan, identify concerns and ask staff questions regarding specific features. Feedback was collected on comments that were evaluated by staff. Comments were found to be mostly positive and staff incorporated suggestions if they were feasible and were in line with the project’s traffic calming objectives. Staff developed final signing and striping design plans based on the public outreach. Staff is in the process of implementing the traffic calming plan on Cassia Road. In order to expedite implementation, components of the work will be conducted by different parties. The majority of the signing and striping will be performed by our Streets Maintenance crews and other work will be done by contractors. CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: December 5, 2016 ITEM NO. 6C-1 (continued) Page 4 NECESSARY CITY COUNCIL ACTION: No City Council action required for this item. ATTACHED EXHIBITS: 1. Location Map 2. Cassia Traffic Calming Plan 3. Proposed Improvements at Poinsettia Lane 4. Proposed Improvements at El Camino Real 5. Proposed Improvements at Reverse Curve (Tradition driveway) 6. Proposed Improvements at Kalmia Circle (West) 7. Proposed Improvements at Kalmia Circle (East) 8. Proposed Improvements at Nicolia Drive 'Y / 0~~~/··.~. q,~<vo~"' ~~ "' ' / /---... \', //~>· " ' / / /~ ',_'-(/ / ' ' (/ / /~',, '-'._ I I /-~\\, : z~ ~5~~g~~~r-t ---: ~-- . ( I <:< . --- _.--- .. ----------· _,..,.-- ~-------·/ .· .· 0 /// (- ~/-~~ v"" x.-"" ~ h ::>' .--··., -. / ' ~ \ / ( : .' N + -.:::::::=--=:::::::. ____ .:::::::======:::::JI----M iles 0 0.0625 0.125 0.25 0.375 0.5 '-( NOT TO SCALE I I W84 (CA. MODIFIED) NOT TO SCALE INSTALL NEW W84 (CA, MODIFIED) ON EXISTING TELESPAR POST. EXHIBIT 3: IMPROVEMENTS AT POINSETTIA LANE CALMING cb~D or;, W84 (CA MODIFIED) NOT TO SCALE CASSIA ROAD riNSTALL NEW W84 (CA, MODIFIED) I ON EXISTING TELESPAR POST NOT TO SCALE I I EXHIBIT 4: IMPROVEMENTS AT EL CAMINO REAL I EXHIBIT 5: IMPROVEMENTS AT TRADITION DRIVEWAY G) 0 0 0 0 0 0 0 ® 0 STRIPING WORK TO BE DONE: PAINT 4" WHITE RIGHT EDGE LINE PER CA MUTCD DETAIL 27B. PAINT 4" DOUBLE YELLOW MEDIAN PER CA MUTCD DETAIL 29. INSTALL B" WHITE CERAMIC DOME PAVEMENT MARKERS WITH REFLECTORS. DOMES SHALL BE OFFSET 1' INSIDE OF TRAFFIC STRIPE AND SHALL BE PLACED AT 2.5' D.C. REFLECTORS SHALL FACE VEHICULAR TRAFFIC. INSTALL B" YELLOW CERAMIC DOME PAVEMENT MARKERS WITH REFLECTORS. DOMES SHALL BE OFFSET 1' INSIDE OF TRAFFIC STRIPE AND SHALL BE PLACED AT 2.5 D.C. REFLECTORS SHALL FACE VEHICULAR TRAFFIC. INSTALL SHARED LANE MARKING PER CA MUTCD FIGURE 9C-9 (THERMOPLASTIC). INSTALL BIKE LANE + ARROW LEGEND (THERMOPLASTIC). INSTALL YIELD MARKINGS PER CA MUTCD FIGURE 3B-16. TRIANGLES SHALL HAVE A BASE WIDTH OF 24" AND LENGTH OF 36" AND SHALL BE PLACED AT 3' D.C. (THERMOPLASTIC). PAINT ASPHALT BRICK RED IN DEPICTED AREA PRIOR TO OTHER SIGNING AND STRIPING WORK. COLOR SHALL BE APPROVED BY CITY PRIOR TO INSTALLATION. PAINT ASPHALT CONCRETE GREY IN DEPICTED AREA PIROR TO OTHER SIGNING AND STRIPING WORK. COLOR SHALL BE APPROVED BY CITY PRIOR TO INSTALLATION. REMOVE EXISTING CONFLICTING STRIPING AND MARKINGS BY GRINDING. PAINT 6" BROKEN WHITE BIKE LANE LINE PER CA MUTCD DETAIL 39A. SCALE: 1"=20' 0 d~ ~ :z -:": 0 w :;:,: WORK BY OTHERS: TYPE C CURB RAMP PER SAN DIEGO REGIONAL STANDARD DRAWING G-29. RAMP OPENING SHALL BE 8'. ...--..... 3: ....___ . 0::: u <( -~ 0 --.1 ~ WORK BY OTHERS: SIGNING WORK TO BE DONE: INSTALL R1-2 "YIELD" SIGN AND R1-2aP (MODIFIED) SIGN ON NEW TELESPAR POST. REMOVE EXISITNG Rl-1 "STOP" SIGN AND INSTALL NEW Rl-2 "YIELD" SIGN AND R1-2aP (MODIFIED) SIGN ON EXISTING TELESPAR POST . INSTALL R1-2 "YIELD"SIGN AND R1-2aP (MODIFIED) SIGN ON EXISTING STREET LIGHT POLE. INSTALL TWO (2) R6-4 "CHEVRON" SIGNS ON NEW TELESPAR POST. ONE SIGN SHALL FACE SOUTHBOUND TRAFFIC AND ONE SHALL FACE WESTBOUND TRAFFIC. THE BOTTOM EDGE OF THE LOWEST SIGN SHALL BE 4' ABOVE GRADE. INSTALL R6-4 "CHEVRON" SIGN ON TELESPAR POST FACING EASTBOUND TRAFFIC. THE BOTTOM EDGE OF THE SIGN SHALL BE 4' ABOVE GRADE. INSTALL W2-6 "TRAFFIC aRCLE" SYMBOL SIGN ON NEW TELESPAR POST. INSTALL W2-6 "TRAFFIC aRCLE" SYMBOL SIGN ON EXISTING STREET LIGHT POLE. 24" TO TRAFFIC IN CIRCLE R1-2aP (MODIFIED) (BLACK LETTERING ON WHITE SIGN) 260' TO BCR -~ ~ ---------,_--cv-<-« ® ~CASSIA ROAD TYPE C CURB RAMP PER SAN DIEGO REGIONAL STANDARD DRAWING G-29. RAMP OPENING SHALL BE 8'. WORK BY OTHERS: RELOCATE EXISTING SPEED FEEDBACK SIGN. EXISTING R2-1(35) SPEED LIMIT SIGN SHALL REMAIN. EXHIBIT 6: IMPROVEMENTS AT KALMIA CIRCLE (W) 18" CD 0 0 0 0 (j) 0 0 ® ® STRIPING WORK TO BE DONE: PAINT 4" WHITE RIGHT EDGE LINE PER CA MUTCD DETAIL 278. PAINT 4" DOUBLE YELLOW t.lEDIAN PER CA MUTCD DETAIL 29. INSTALL B" WHITE CERAMIC DOME PAVEMENT MARKERS WITH REFLECTORS. DOt.iES SHALL BE OFFSET 1' INSIDE OF TRAFFIC STRIPE AND SHALL BE PLACED AT 2.5' D.C. REFLECTORS SHALL FACE VEHICULAR TRAFFIC. INSTALL B" YELLOW CERAMIC DOME PAVEMENT t.lARKERS WITH REFLECTORS. DOt.iES SHALL BE OFFSET 1' INSIDE OF TRAFFIC STRIPE AND SHALL BE PLACED AT 2.5 O.C. REFLECTORS SHALL FACE VEHICULAR TRAFFIC. INSTALL SHARED LANE MARKING PER CA MUTCD FIGURE 9C-9 (THERt.iOPLASTIC). INSTALL BIKE LANE t ARROW LEGEND (THERt.iOPLASTIC). INSTALL YIELID t.lARKINGS PER CA MUTCD FIGURE 3B-16. TRIANGLES SHAUL HAVE A BASE WIDTH OF 24" AND LENGTH OF 36" AND SHALL BE PLACED AT 3' O.C. (THERMOPLASTIC). PAINT ASPHALT BRICK RED IN DEPICTED AREA PRIOR TO OTHER SIGNING AND STRIPING WORK. COLOR SHALL BE APPROVED BY CITY PRIOR TO INSTALLATION. PAINT ASPHALT CONCRETE GREY IN DEPICTED AREA PRIOR TO OTHER SIGNING AND STRIPING WORK. COLOR SHALL BE APPROVED BY CITY PRIOR TO INSTAULATION. REMOVE EXISTING CONFLICTING STRIPING AND t.lARKINGS BY GRINDING. PAINT 6" BROKEN WHITE BIKE LANE LINE PER CA t.lUTCD DETAIL 39A. WORK BY OTHERS: RELOCATE EXISTING SPEED FEEDB ACK SIGN. EXISTING R2-1 (35) SPEED LIMIT SIGN SHALL REMAIN. I~ 250' TO BCR SCALE: 1"=20' 0 d~ ~ 2: «: ~I 0 w (/) < u:: & & t• WORK BY OTHERS: TYPE C CURB RAMP PER SAN DIEGO REGIONAL STANDARD DRAWING G-29. RAMP OPENING SHALL BE 8'. . 0::: u <( ~ _.J <( ::::::c::::: 0 SIGNING WORK TO BE DONE: CD INSTALL R1-2 "YIELID" SIGN AND R1-2aP (t.lODIFIED) SIGN ON NEW TELESPAR POST. REMOVE EXISTING "NO PARKING" SIGN. 0 REMOVE EXISITlNG RH "STOP" SIGN AND INSTALL NEW R1-2 "YIELD" SIGN AND R1-2aP (t.lDDIFIED) SIGN ON EXISTING TELESPAR POST. 0 REMOVE EXISTING W1-3 AND W13-1P(30 MPH) SIGNS FROM EXISTING STREET LIGHT POLE. INSTAUL R1-2 "YIELID" SIGN AND R1-2aP (t.lDDIFIED) SIGN ON EXISTING STREET LIGHT POLE. CD INSTALL TWO (2) R6-4 "CHEVRON" SIGNS ON NEW TELESPAR POST. ONE SIGN SHAUL FACE SOUTHBOUND TRAFFIC AND ONE SHAUL FACE WESTBOUND TRAFFIC. THE BOTIOM EDGE OF THE LOWEST SIGN SHALL BE 4' ABOVE GRADE. 0 INSTALL R6-4 "CHEVRON" SIGN ON TELESPAR POST FACING EASTBOUND TRAFFIC. THE BOTIOM EDGE OF THE SIGN SHALL BE 4' ABOVE GRADE. 0 INSTALL W2-6 "TRAFFIC CIRCLE" SYMBOL SIGN ON NEW TIELESPAR POST. 0 REMOVE EXISTING "NO PARKING" SIGN. INSTALL W2-6 "TRAFFIC CIRCLE" SYMBOL SIGN ON EXISTING TELESPAR POST. 0 WORK BY OTHERS: TYPE C CURB RAMP PER SAN DIEGO REGIONAL STANDARD DRA'MNG G-29. RAMP OPENING SHALL BE 8'. EXHIBIT 7: IMPROVEMENTS AT KALMIA CIRCLE (EAST) 24" TO TRAFFIC 18' IN CIRCLE R1-2aP (MODIFIED) (BLACK LETTERING ON WH ITE SIGN) 6 CD 0 0 0 0 0 0 0 ® STRIPING WORK TO BE DONE: PAINT 4" 'M-IllE RIGHT EDGE LINE PER CA MUTCD DETAIL 278. PAINT 4" DOOBLE YELLOW MEDIAN PER CA MUTCD DETAIL 29. INSTALL a• WHilE CERAMIC DOME PAVEMENT MARKERS 'MTH REFLECTORS. DOMES SHALL BE OFFSET 1' INSIDE OF TRAFFIC STRIPE AND SHALL BE PLACED AT 2.5' D.C. REFLECTORS SHALL FACE VEHICULAR TRAFFIC. INSTALL a· YELLOW CERAMIC DOME PAVEMENT MARKERS 'MTH REFLECTORS. DOMES SHALL BE OFFSET 1' INSIDE OF TRAFFIC STRIPE AND SHALL BE PLACED AT 2.5 D.C. REFLECTORS SHALL FACE VEHICULAR TRAFFIC. INSTALL SHARED LANE MARKING PER CA MUTCD FIGURE 9C-9 (THERI.IOPLASTIC). INSTALL BIKE LANE + ARROW LEGEND (THERMOPLASTIC). INSTALL YIELD MARKINGS PER CA MUTCD FIGURE JB-16. TRIANGLES SHALL HAVE A BASE WIDTH OF 24" AND LENGTH OF 36" AND SHALL BE PLACED AT 3' O.C. (THERMOPLASTIC). PAINT ASPHALT BRICK RED IN DEPIClED AREA PRIOR TO OTHER SIGNING AND STRIPING I'KlRK. COLOR SHALL BE APPROVED BY OTY PRIOR TO INSTALLATION. PAINT ASPHALT CONCRElE GREY IN DEPIClED AREA PRIOR TO OTHER SIGNING AND STRIPING WORK. COLOR SHALL BE APPROVED BY CITY PRIOR TO INSTALLATION. REMO'vf EXISTING CONFUCTING STRIPING AND I.IAIRKINGS BY GRINDING. 1 ... WORK BY OTHERS: TYPE C CURB RAMP PER SAN DIEGO \ REGIONAL STANDARD DRAWING G-29. RAMP OPENING SHALL BE 8'. SCALE: 1"=20' CASSIA ROAD WORK BY OTHERS: TYPE C CURB RAMP PER SAN DIEGO REGIONAL STANDARD DRAWING G-29. RAMP OPENING SHALL BE 8'. '' SIGNING WORK TO BE DONE: [2] INSTALL Rl-2 "YIELD" SIGN AND R1-2aP (MODIFIED) SIGN ON NEW TELESPAR POST. 0 REMOVE EXISITNG Rl-1 "STOP" SIGN AND INSTALL NEW Rl -2 "YIELD" SIGN AND R1-2oP (MODIFIED) SIGN ON EXISllNG TELESPAR POST. 0 INSTALL Rl-2 "YIELD" SIGN AND R1-2aP (I.IOOIFIED) SIGN ON EXISTING STREET LIGHT POLE. CD INSTALL TWO (2) R6-4 "CHEVRON" SIGNS ON NEW lELESPAR POST. ONE SIGN SHALL FACE SOUTHBOUND TRAFFIC AND ONE SHALL FACE WESllBOOND TRAFFIC. THE BOTIOM EDGE OF THE LOWEST SIGN SHALL BE 4' ABOVE GRADE. [I] INSTALL TWO (2) R6-4 "CHEVRON" SIGNS ON NEW lELESPAR POST. ONE SIGN SHALL FACE NORTHBOUND TRAFFIC AND ONE SHALL FACE EASllBOOND TRAFFIC. THE BOTIOM EDGE OF THE LOWEST SIGN SHALL BE 4' ABOVE GRADE. 0 INSTALL W2-6 "TRAFFIC CIRCLE" SYMBOL SIGN ON NEW lELESPAR POST. 0 INSTALL W2-6 "TRAFFIC CIRCLE" SYI.IBOL SIGN ON EXISTING STREET LIGHT POLE. 125' TO BCR I EXHIBIT 8: IMPROVEMENTS AT NICOLIA DRIVE 24" TO TRAFFIC 18" IN CIRCLE R1-2aP (MODIFIED) (BLACK LETTERING ON WHITE SIGN) Cassia Road Traffic Calming December 5, 2016 Location Map What we’ve done to date Poinsettia / Cassia curve •Reconfiguration of eastbound left turn on Poinsettia Lane  at Cassia Road •Advance curve warning and speed advisory signs •Concrete barrier •Routed bikes behind barrier 4 What we’ve done to date Cassia Road Speeding Concerns •Vehicle lane narrowing via striped bike lanes •“35” pavement legends to augment posted speed limit •Speed feedback signs 6 What we’ve done to date Oversize Trucks & Excessive Noise •Truck prohibition signs •HOA working with Police to identify trucks Pedestrian Crossings •Adding wheelchair ramp on Poinsettia What we’ve done to date Meetings with Residents •August 9, 2016 –staff directed to propose and implement  a traffic calming plan on Cassia Road •October 18, 2016 – public meeting at Dove Library  Auditorium to present proposed traffic calming plan to  residents Traffic Calming Objectives for Cassia Road •Introduce traffic calming features at regularly spaced,  recommended intervals •Use devices that are self‐enforcing •Improve roadway environment for all users •Enhance residential character of Cassia Road 10 Traffic Calming Plan for Cassia Road •Entry signs at Poinsettia Lane and El Camino Real •Traffic  circle at Kalmia Circle West •Traffic  circle at Kalmia Circle East •Relocation of Speed Feedback signs to reverse curves •Traffic  circle at Nicolia Drive 11 500‐700 Foot Spacing How Roadway Design Influences Driver Behavior Straight Roads = Higher Speed Traffic Calming: Introducing Horizontal Deflection Horizontal Deflection thru Traffic Circle and Curb Extensions Do STOP Signs Calm Traffic? STOP signs are for traffic control •Used assign right‐of‐way at intersection STOP signs are not intended for speed control •Not appropriate for traffic calming •Interrupt traffic flow and create unnecessary conflicts •Punish drivers traveling the speed limit •Not environmentally friendly •Not self‐enforcing Neighborhood Meeting October 18, 2016 –Dove Library Auditorium •Over 800 notifications were mailed two weeks prior •Approximately 50 attendees •Presentation of proposed traffic calming plan •Question and answer session •Feedback collected on comment cards What We Heard Comment or Concern Response Poinsettia Lane needs to be completed > Not within the scope of this project Support/doesn’t support dual left turns at ECR > Will not be implemented at this time Traffic circle at Genoa Lane > Would compromise spacing of features Speed of vehicles through reverse curves > Speed feedback signs will be relocated to reverse curves Left turn access at Kalmia Circle is difficult > Proposed traffic circles will improve left turn access Cars passing on the right using bike lane > Proposed extensions will prevent passing on the right Concern regarding bikes on sidewalks > No problems reported at State Street SketchUp image here SketchUp image here Intersection Treatment at Kalmia (W) Intersection Treatment at Kalmia (E) Existing Reverse Curve Intersection Treatment at Nicolia Staff Recommendation •Support traffic calming plan for Cassia Road as  presented.