HomeMy WebLinkAboutSS3 - Mariners and Dover Shores Neighborhood Traffic Calming - PowerPointJanuary 12, 2021
Item No. SS3
Mar'0
iners and Dover Shores
Neighborhood Traffic Calming
City Council Study Session
January 12, 2021
Citv Council Policv L-26 - Traffic Manaptement Poli
Step -by -Step Process is outlined in Policy.
❑ Criteria established in L-26 for consideration of Traffic Calming Measures:
Does speed data indicate "demonstrated speeding concerns" ?
Is the 85th percentile speed equal to or greater than 32 mph ?
Average daily traffic on streets between 500 — 4000 vehicles per day
Neighborhood Meeting(s) are scheduled.
Traffic Study is prepared and Conceptual Improvement Plans prepared.
Neighborhood Petition - Seventy (70) percent neighborhood support required.
Study Area -Mariners/Dover Shores
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Part 1 of Mariners/Dover Shores Stud
& Timeline
❑ Held informal meeting with small group of residents with neighborhood traffic concerns
❑ Their concerns included speeding, cut -through traffic, bicycle safety
❑ Neighborhood Traffic Study begins in October 2018
❑ Held Town Hall Meeting # 1 on November 29, 2018:
❖ Introduced Study, Answered Questions and Gathered any Comments/Concerns
Undertook extensive collection of neighborhood traffic data including speeds, daily
volumes, accident data, cut -through counts in February and March 2019
Part 2 of Mariners/Dover Shores Study & Timeline
❑ Held . o on May 2, 2019
Presented traffic data to residents
Discussion of City Council Policy L-26 "Neighborhood Traffic
Management" and criteria for various traffic calming measures
Analysis started to determine if any streets in neighborhood qualify for traffic
calming
Staff and consultant review appropriate traffic calming tools
Part 3 of Marine
over Shores Studv & Timeline
❑ Held Town Hall Meeting # 3 on September 12, 2019
Conceptual Traffic Calming Improvement Plan presented to residents
Speed Cushions and Edgeline Striping outlined on seven (7) streets in
neighborhood
❑ Mariners and Dover Shores Neighborhood Traffic Calming Study completed
on October 23, 2019
Final Study together with Petition provided to neighborhood representative
Study posted on City website
Summary of Traffic Study Findings
❑ Large neighborhood consists of 490 acres and 3,932 residents.
❑ Vehicle speeds and cut -through traffic are primary concerns of residents.
❑ Cut -through traffic volumes found to be negligible.
❑ Speeds on key streets range from 32 — 38 mph in residential 25 mph limit.
❑ Definition of "demonstrated speeding concerns" supported.
Policy L-26 criteria are met on seven (7) key streets in neighborhood.
Proposed
Project
ion •
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ly
Pr®-o®sed Traffic Calmine Pr®i ed
Install:
8 sets of Speed Cushions & Edgeline Striping on Santiago Drive
3 sets of Speed Cushions & Edgeline Striping on Highland Drive
❑ 2 sets of Speed Cushions & Edgeline Striping on Polaris Drive
❑ 2 sets of Speed Cushions & Edgeline Striping on Commodore Road
❑ 1 set of Speed Cushions & Edgeline Striping on Mariners Drive
1 set of Speed Cushions & Edgeline Striping on Dover Drive
Edgeline Striping on Tradewinds Lane
Striped Bulbouts at five (5) intersections on Highland Drive
Typical Plan
Santiago Drive:
Speed Cushions &
Edgeline Striping
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Preliminary Conceptual Roadway Detall
5andago Drive. Galaxy Drive to Holiday Road
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Neighborhood Petition
'-J Provided by Staff to Neighborhood on October 23, 2019
No Contact from Residents between January 2020 to July 2020
❑ Staff removes project funding from CIP Budget in May 2019 (Covid Reduction)
❑ Petition Signatures Submitted by Neighborhood to Staff on October 21, 2020
➢ Santiago Drive = 61 % support
➢ Commodore Road = 61 % support
➢ Tradewinds Lane = 52 % support
➢ Dover Drive = 60 % support
➢ Highland Drive = 71 % support
➢
Mariners Drive
= 42
% support
➢
Polaris
Drive =
15 %
support
Cost Estimate
• Asphalt Speed Cushions = $ 4,500 each x 17 cushions = $ 76,500
• Rubber Speed Cushions = $ 6,500 each x 17 cushions = $ 110,500
Edgeline Striping = 42,000 LF x 0.25 per LF = $ 10,500
Total Project Cost Estimate (with 20% contingency) _ $ 104,400 asphalt cushions
_ $ 145,200 rubber cushions
Proposed Recommendations
for Discussion on Revular Meetin
❑ Receive and file the Study and;
Item 14
Uphold Policy L-26 requirement for 70 % Neighborhood Support and Do Not
Proceed with Installation of Traffic Calming Measures;
or
❑ Waive Policy L-26 requirement for 70 % Neighborhood Support and direct staff
to advertise the Proposed Project for Installation of Traffic Calming Measures on
all listed streets, except Polaris Drive, and appropriate necessary funding
(possibly up to $145,200 in General Funds) at the time of project award.