Item 13 - Reso Approving an All-Way Stop Control at the Intersection of Martincoit Road and Stone Canyon RoadJanuary 18, 2022, Item #13DATE: TO: FROM: CONTACT: SUBJECT: Summary: AGENDA REPORT CityofPoway January 18, 2022 Honorable Mayor and Members of the City Council Robert Manis, Director of Development Services/,A Melody Rocco, City Engineer µJL (858) 668-4653 or mrocco@poway.org CITY COUNCIL A Resolution Approving an All-Way Stop Control at the Intersection of Martincoit Road and Stone Canyon Road On October 13, 2021, the City's Traffic Safety Committee (TSC) supported staff's recommendation for an all-way stop control at the intersection of Martincoit Road and Stone Canyon Road, which was analyzed after receiving a resident request to re-evaluate the intersection. The proposed all-way stop is recommended pursuant to the California Manual on Uniform Traffic Control Devices (MUTCD) based on corner sight distance and the similar operating traffic conditions on Martincoit Road and Stone Canyon Road. Recommended Action: It is recommended that the City Council adopt the Resolution (Attachment A) approving an all-way stop control at the intersection of Martincoit Road and Stone Canyon Road. Discussion: A request was received, along with a petition, to re-evaluate the Martincoit Road and Stone Canyon Road intersection for an all-way stop control. The petition received was signed by 14 property owners or residents within 500 feet of the intersection. The same request was considered by the TSC and City Council several years ago. On May 7, 2013 during discussion on the 2013 Traffic and Engineering Survey, the City Council requested that staff investigate the possibility of an all-way stop control at the intersection of Martincoit Road and Stone Canyon Road. This request was in response to a speeding concern expressed by Martincoit Road residents. The existing intersection control is stop controlled for the Stone Canyon Road approach to the three-way orT-intersection with Martincoit Road. Martincoit Road is currently uncontrolled. Attachment B depicts the subject intersection. 1 of 12
January 18, 2022, Item #13On June 11, 2013 staff collected traffic volumes approaching all three legs of the subject intersection. The traffic data was used to evaluate the need for an all-way stop control based on volume criteria. Intersection site distance was also checked using the 85th percentile speed for Martincoit Road from the 2013 Traffic and Engineering Survey. Based on the results, on August 28, 2013 a recommendation was made to the TSC to install an all-way stop control at the T-intersection for Stone Canyon Road and Martincoit Road. The committee unanimously voted to approve the all-way stop. On December 3, 2013 staff recommended the installation of an all-way stop control at the intersection to the City Council. After comments from the public, both in favor and opposed, and discussion by the Councilmembers, no action was taken, and the item was referred back to the TSC for further consideration. The City Council was concerned that the measured sight distance had been determined based upon speed survey data taken at a different location other than near the intersection. The Council also asked staff to investigate possible traffic calming measures for Martincoit Road. At the February 26, 2014 TSC meeting, staff presented the findings from a new speed survey. The traffic calming measures investigated on Martincoit Road were also presented. Staff recommended the installation of an all-way stop control at the intersection with appropriate intersection and advanced warning signs. The committee unanimously approved the recommendation for an all-way stop. Staff presented this recommendation to the City Council on April 1, 2014. They did not approve the all-way stop control and requested staff to analyze the site for other traffic calming measures on Martincoit Road. On September 2, 2014 staff recommended the restriping of the intersection and the installation of additional striping on the approach to the intersection on Martincoit Road. City Council approved these recommendations. The subject intersection has since been restriped. Additional signage and pavement legends, as well as curve warning signs with a flashing beacon have also been installed along Martincoit Road. In response to the recent request to consider an all-way stop at this intersection, staff re-evaluated the intersection. On September 9, 2021 staff collected new traffic volumes approaching from all three legs of the subject intersection, see Attachment C. The new traffic data was used to re-evaluate the need for an all-way stop control. New speed data was also collected at five locations close to the subject intersection. The speed data was recorded in each location for a length of time that provided information on at least 100 unimpeded vehicles. The 85th percentile speeds were measured as follows: Road Direction Location 85th Percentile Speed Martincoit Road Northbound 630' south of Stone Canyon Road 39 mph Martincoit Road Southbound 630' south of Stone Canyon Road 38 mph Martincoit Road Northbound 465' north of Stone Canyon Road 47 mph Martincoit Road Southbound 465' north of Stone Canyon Road 42 mph Stone Canyon Road Eastbound 555' west of Martincoit Road 38 mph Stone Canyon Road Westbound 555' west of Martincoit Road 39 mph Attachment D shows the locations where the speed data was collected and the results of the survey. 2 of 12
January 18, 2022, Item #13Section 2B.07 "Multi-Way Stop Applications" of the California MUTCD is used as the guideline to evaluate intersections for all-way stop controls. The noted MUTCD guidelines identify two groups of conditions where an all-way stop control can be installed: Should Conditions Conditions when all-way stop controls "Should" be used involve minimum traffic volumes, number of accidents, and locations where traffic signals are justified. May Conditions Conditions when all-way stop controls "May" be used involve a need to control left-turn conflicts and/or vehicular and pedestrian conflicts, lack of sight distance, and local collector intersections with similar design and operating characteristics. The subject intersection of Martincoit Road and Stone Canyon Road does not meet any of the criteria under the "Should" conditions due to its low traffic volumes and number of accidents per year. Under the "May'' conditions, Martincoit Road and Stone Canyon Road have the same classification per the City's Transportation Master Element, Local Collector, with approximately equal traffic volumes, around 2,500 average daily trips. They also have similar prevailing (85th percentile) speeds of approximately 40 mph and both have the same posted speed limit of 35 mph. These similarities in roadway characteristics and operating parameters between Martincoit Road and Stone Canyon Road, qualify the subject intersection for an all-way stop control pursuant to Section 2B.07 of the MUTCD. Additionally, sight distance was re-evaluated. The existing corner sight distance for Stone Canyon Road drivers turning left (north) onto Martincoit Road is over 500 feet to the north. According to the recent speed survey, the southbound 85th percentile speed, taken at approximately 465 feet north of the intersection (the measurement closest to the intersection), was 42 mph. Assuming this speed on the uncontrolled approach, the California Highway Design Manual calls for a recommended corner sight distance of 463 feet and a minimum corner sight distance of 324 feet. Since the sight distance to the north is over 500 feet, this standard is met. The existing corner sight distance to the south, for Stone Canyon Road drivers turning left (north) onto Martincoit Road, is approximately 220 feet. The northbound 85th percentile speed, taken at approximately 630 feet south of the intersection, was 39 mph. Assuming this speed on the uncontrolled approach, the California Highway Design Manual calls for a recommended corner sight distance of 429 feet and a minimum corner sight distance of 290 feet. The existing corner sight distance of 220 feet to the south does not meet either of the two corner sight distances (recommended or minimum) called for in the California Highway Design Manual, using the measured 85th percentile speed. Corner sight distance may also be calculated using design speed. Using the posted speed limit of 35 mph, the recommended corner sight distance would be 386 feet, and the minimum corner sight distance would be 250 feet. The existing corner sight distance of 220 feet to the south is also not met using the design speed. Pursuant to condition C, Paragraph 5 of Section 2B.07 of the MUTCD, the intersection of Martincoit Road and Stone Canyon Road qualifies for an all-way stop control based on the corner sight distance conditions. At its meeting on October 13, 2021, the TSC voted unanimously to support staff's recommendation to install an all-way stop control at the intersection of Martincoit Road and Stone Canyon Road, with appropriate markings and advance warning signs. 3 of 12
January 18, 2022, Item #13Prior to the TSC meeting staff received ten emails which were split in favor and against the installation of the all-way stop control. At the TSC meeting, residents in attendance were given an opportunity to voice their opinions and concerns. Of the twelve residents who chose to speak, seven were in favor of the stop sign and five were against it. Of the seven supporting the installation, several were in favor of adding more than just stop signs. Environmental Review: This item is exempt from the requirements of the California Environmental Quality Act (CEQA), pursuant to Section 15301 of the CEQA Guidelines as it includes installation of an all-way stop control on existing City streets and there is no expansion of existing use. Fiscal Impact: There are sufficient funds available in the Street Striping Account (411040-43300) to install new stop legends and limit lines estimated at $1,000, and in the Sign Maintenance Materials Account (411040-45300) to install new stop signs at under $500. Public Notification: Notices were mailed to residents living within a 500-foot radius from the intersection, 2,000 feet from the intersection along Martincoit Road and Stone Canyon Road, and all the residents who attended the Traffic Safety Committee meeting regarding this matter. Notification signs were also posted at the intersection. Attachments: A. Resolution B. Location Map C. Traffic Counts D. Speed Survey Reviewed/ Approved By: Wendy Kaserman Assistant City Manager 4 of 12 Reviewed By: Alan Fenstermacher City Attorney City Manager
January 18, 2022, Item #13RESOLUTION NO. 22-A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF POWAY, CALIFORNIA, ESTABLISHING AN ALL-WAY STOP CONTROL AT THE INTERSECTION OF MARTINCOIT ROAD AND STONE CANYON ROAD WHEREAS, Section 21100 of the California Vehicle Code permits local authorities to adopt by resolution traffic control measures meeting the requirements set forth under Section 21351 of the California Vehicle Code; WHEREAS, Section21351 of the California Vehicle Code permits local authorities to place and maintain such traffic signs upon streets and highways as may be necessary to properly indicate and carry out the provisions of the local ordinances and to warn or guide traffic; WHEREAS, Section 21354 of the California Vehicle Code permits local authorities to designate any intersection under its exclusive jurisdiction as a stop intersection and erect stop signs at one or more entrances thereto; WHEREAS, Section 10.24.020 of the City's Municipal Code permits installation of stop signs where the City Council has determined that there is a special hazard to life and property by reason of lack of visibility to the drivers of vehicles approaching such intersection; WHEREAS, Resolution No. 05-086, adopted by the City Council on October 4, 2005, sets the guidelines to determine a special hazard to life and property condition in accordance with Sections 28.05 "STOP Sign Applications" and 28.07 "Multiway Stop Applications" of the California Manual on Uniform Traffic Control Devices (MUTCD); WHEREAS, the City Council has determined that the intersection of Martincoit Road and Stone Canyon Road qualifies for an all-way stop control due to lack of adequate sight distance and the need to control vehicle conflicts in accordance with the guidelines set forth in Section 28.07 of the California MUTCD; and WHEREAS, the City Council has determined that an all-way stop control and appropriate markings should be established at the intersection of Martincoit Road and Stone Canyon Road. NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Poway as follows: SECTION 1: In accordance with said Section 21351 of the California Vehicle Code, an all-way stop control with appropriate markings and advance warning signs shall be installed at the intersection of Martincoit Road and Stone Canyon Road. 5 of 12 ATTACHMENT A
January 18, 2022, Item #13Resolution No. 22-Page 2 PASSED, ADOPTED AND APPROVED at a Regular Meeting of the City Council of the City of Poway, California on the 18th day of January, 2022 by the following vote, to wit: AYES: NOES: ABSENT: DISQUALIFIED: Steve Vaus, Mayor ATTEST: Carrie Gallagher, CMC, City Clerk 6 of 12
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January 18, 2022, Item #13Prepared by National Data & Surveying Services Martincoit Rd & Stone Canyon Rd Peak Hour Turning Movement Count ID: 21-040155-001 City: Poway Martincoit Rd Day: Thursday Date: 9/9/2021 08:00 AM -09:00 AM AM 100 27 0 0 158 AM 7:00 AM -09:00 AM 0 0 C z -t 12:45 PM -01 :45 PM NOON 85 35 0 0 119 NOON 11 :00 AM -02:00 PM "'O m :;o 03:00 PM -04:00 PM PM 66 26 0 116 PM 2:00 PM -06:00 PM 0 CJ en AM NOON PM 134 113 93 ¢:i 0 0 .!) 0 ---+------+---116 83 80 j 0 0 0 0 ➔ 1 15 28 32 ,. 0 AM NOON PM Totals (AM) _J3 ~ .'.; L 116,t ~ t.O 0-+ ~+-0 15"\. I' 0 7., t ,., 8 of 12 W~O W N PM NOON AM 0 1 58 63 42 if PM NOON AM 0 0 0 0 267 PM 0.95 1 0 0 t. 0 0 0 0 0 0 0 0 c::;> 0 0 0 0 0 0 0 en 0 ::, (?) 0 C,) ::, '< 0 ::, :;o 0. PM NOON AM 0 27 35 0 PM 0 28 36 0 NOON 0 33 42 0 AM Totals (AM) _J3 ~ .:;L 116,t ~ t.0 0-+ ~ +-0 15"\, I' 0 7Hb1 Totals (NOON) _J~ ~ .:;L 83.t ~ t.0 0-+ ~ +-0 728"\,., t ,.,,o NWO 00 O'I Totals (PM) ATTACHMENT C
January 18, 2022, Item #139 of 12 ATTACHMENT D
January 18, 2022, Item #13Prepared by National Data & Surveying Services
SPEED
Martincoit Rd N/0 Stone Canyon Rd
Day: Thursday City: Poway
...a. Date: 9/9/2021 Project#: CA21_040156_001s 0
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00:00 AM 0 0 0 0 1 0 1 0 0 0 0 0 0 2
01:00 0 0 0 0 1 0 0 0 0 0 0 0 0 1
02:00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
03:00 0 0 0 0 1 0 0 0 1 0 0 0 0 2
04:00 1 0 0 0 0 1 1 0 0 0 0 0 0 3
05:00 0 0 0 1 1 2 0 0 0 0 0 0 0 4
06:00 0 0 0 6 11 7 3 0 0 0 0 0 0 27
07:00 0 1 3 5 23 33 15 1 0 0 0 0 0 81
08:00 1 0 2 19 45 39 12 4 0 0 0 0 0 122
09:00 0 0 5 9 16 23 7 2 0 0 0 0 0 62
10:00 1 2 2 10 15 17 6 1 1 0 0 0 0 55
11:00 1 1 1 6 11 14 13 3 3 0 0 0 0 53
12:00 PM 0 0 3 9 25 12 8 3 1 0 0 0 0 61
13:00 0 3 3 26 41 27 16 2 0 1 0 0 0 119
14:00 0 2 2 8 22 24 17 6 1 0 0 0 0 82
15:00 0 1 4 15 23 38 9 5 0 1 0 0 0 96
16:00 1 0 3 3 19 32 13 6 1 0 0 0 0 78
17:00 0 3 1 9 18 22 16 5 0 1 0 0 0 75
18:00 0 2 3 5 12 9 14 1 1 0 0 0 0 47
19:00 1 2 0 4 7 8 6 2 0 1 0 0 0 31
20:00 0 0 1 1 8 5 5 2 1 2 0 0 0 25
21:00 0 0 0 0 5 5 1 0 1 0 0 0 0 12
22:00 0 0 1 2 2 0 0 1 1 0 0 0 0 7
23:00 0 0 0 0 2 1 0 0 0 0 0 0 0 3
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%I 2%1 3%1 13%1 29%1 30%1 16%1 4%1 1%1 1%1 I I I 100%
AM Volumes 4 4 13 56 125 136 58 11 5 0 0 0 0 412
%AM 0% 0% 1% 5% 12% 13% 6% 1% 0% 39%
AM Peak Hour 04:00 10:00 09:00 08:00 08:00 08:00 07:00 08:00 11:00 08:00
Volume 1 2 5 19 45 39 15 4 3 122
PM Volumes 2 13 21 82 184 183 105 33 7 6 0 0 0 636
%PM 0% 1% 2% 8% 18% 17% 10% 3% 1% 1% 61%
PM Peak Hour 16:00 13:00 15:00 13:00 13:00 15:00 14:00 14:00 12:00 20:00 13:00
Volume 1 3 4 26 41 38 17 6 1 2 119
Directional Peak Periods AM7-9 NOON 12-2 PM 4-6 Off Peak Volumes
All Speeds Volume % Volume % Volume % Volume %
203 +---+ 19% 180 +-----+ 17% 153 +-----+ 15% 512 +-----+ 49%
January 18, 2022, Item #13Prepared by National Data & Surveying Services
SPEED
Martincoit Rd S/0 Stone Canyon Rd
Day: Thursday City: Poway -Date: 9/9/2021 Project#: CA21_040156_002n -0 North Bound -ti -N Will
00:00 AM 0 0 0 0 1 0 0 0 0 0 0 0 0 1
01:00 0 0 0 0 0 1 0 0 0 0 0 0 0 1
02:00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
03:00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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05:00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
06:00 0 0 4 1 6 2 1 1 0 0 0 0 0 15
07:00 0 1 1 3 28 28 4 2 0 0 0 0 0 67
08:00 0 1 6 12 33 14 7 1 0 0 0 0 0 74
09:00 0 0 6 2 25 19 4 0 0 0 0 0 0 56
10:00 0 0 1 5 15 9 4 0 0 0 0 0 0 34
11:00 2 0 3 5 19 22 7 2 0 0 0 0 0 60
12:00 PM 0 1 2 10 22 18 6 1 0 0 0 0 0 60
13:00 0 1 2 10 23 13 3 0 0 0 0 0 0 52
14:00 3 3 4 9 18 14 3 1 0 0 0 0 0 55
15:00 2 1 3 7 18 15 9 1 0 0 0 0 0 56
16:00 0 1 4 8 16 17 6 1 0 0 0 0 0 53
17:00 0 0 5 13 12 11 4 2 0 0 0 0 0 47
18:00 0 1 4 5 14 11 2 1 0 0 0 0 0 38
19:00 0 1 2 3 8 9 2 0 0 0 0 0 0 25
20:00 0 0 0 1 4 3 2 0 0 0 0 0 0 10
21:00 0 0 1 0 3 2 0 0 0 0 0 0 0 6
22:00 0 0 0 0 1 1 0 0 0 0 0 0 0 2
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% of Totatsl 1%1 2%1 7%1 13%1 37%1 29%1 9%1 2%1 I I I I I 100%
AM Volumes 2 3 21 28 127 95 27 6 0 0 0 0 0 309
%AM 0% 0% 3% 4% 18% 13% 4% 1% 43%
AM Peak Hour 11:00 04:00 08:00 08:00 08:00 07:00 08:00 07:00 08:00
Volume 2 1 6 12 33 28 7 2 74
PM Volumes 5 9 27 66 140 114 37 7 0 0 0 0 0 405
%PM 1% 1% 4% 9% 20% 16% 5% 1% 57%
PM Peak Hour 14:00 14:00 17:00 17:00 13:00 12:00 15:00 17:00 12:00
Volume 3 3 5 13 23 18 9 2 60
Directional Peak Periods AM 7-9 NOON 12-2 PM4-6 Off Peak Volumes
All Speeds Volume % Volume % Volume % Volume %
141 +-----+ 20% 112 +-----+ 16% 100 +-----+ 14% 361 +-----+ 51%
January 18, 2022, Item #13Prepared by National Data & Surveying Services
SPEED
Stone Canyon Rd W/0 Martincoit Rd
Day: Thursday City: Poway
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03:00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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07:00 0 0 2 12 46 33 1 0 0 0 0 0 0 94
08:00 0 1 4 10 59 42 14 2 0 0 0 0 0 132
09:00 0 0 4 10 33 25 6 0 0 0 0 0 0 78
10:00 0 0 2 4 25 18 2 1 0 0 0 0 0 52
11:00 0 0 2 8 25 24 11 2 0 0 0 0 0 72
12:00 PM 0 2 2 9 25 20 4 0 0 0 0 0 0 62
13:00 0 1 4 12 61 26 3 0 2 0 0 0 0 109
14:00 0 1 1 10 33 28 8 1 0 0 0 0 0 82
15:00 0 0 5 8 44 23 10 2 1 0 0 0 0 93
16:00 0 2 3 10 32 26 5 1 1 0 0 0 0 80
17:00 0 1 2 11 33 31 4 2 0 0 0 0 0 84
18:00 0 0 1 2 21 15 4 0 0 0 0 0 0 43
19:00 0 0 0 2 14 10 2 0 0 0 0 0 0 28
20:00 0 0 0 1 8 4 0 0 0 0 0 0 0 13
21:00 0 0 0 1 3 2 1 0 0 0 0 0 0 7
22:00 0 0 0 0 1 1 0 0 0 0 0 0 0 2
23:00 0 0 0 0 1 1 0 0 0 0 0 0 0 2
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%1 3%1 11%1 45%1 32%1 7%1 1%1 0%1 I I I I 100%
AM Volumes 0 1 14 47 207 160 36 5 0 0 0 0 0 470
%AM 0% 1% 4% 19% 15% 3% 0% 44%
AM Peak Hour 08:00 08:00 07:00 08:00 08:00 08:00 08:00 08:00
Volume 1 4 12 59 42 14 2 132
PM Volumes 0 7 18 66 276 187 41 6 4 0 0 0 0 605
%PM 1% 2% 6% 26% 17% 4% 1% 0% 56%
PM Peak Hour 12:00 15:00 13:00 13:00 17:00 15:00 15:00 13:00 13:00
Volume 2 5 12 61 31 10 2 2 109
Directional Peak Periods AM7-9 NOON 12-2 PM 4-6 Off Peak Volumes
All Speeds Volume % Volume % Volume % Volume %
226 +------+ 21% 171 ~ 16% 164 ~ 15% 514 ~ 48%