ITEM 5. 4
CITY MANAGER' S REPORT
JANUARY 10, 2022 CITY COUNCIL REGULAR MEETING
ITEM: REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT
IMPROVEMENTS
RECOMMENDATION: Council to Consider Options for Roundabout Improvements near Mossdale Elementary School
SUMMARY:
At the December 13, 2021, City Council requested that staff evaluate improvements to the Towne Centre Drive and McKee Boulevard roundabout and the Brookhurst Boulevard and Golden Spike Trail roundabout. Staff evaluated the roundabouts using the California Manual on Uniform Traffic Control Devices ( MUTCD) and reviewed available traffic accident reports. The following options are being presented to Council for review and consideration:
Option 1 — Install Splitter Islands
approximate cost is $ 200, 000/ roundabout)
Setback crosswalks from the roundabout to enhance pedestrian visibility Provide refuge at the centerline to pedestrians
Reduce traffic speeds
Provide separation and guide traffic
Increase space for mounting signs
Option 2 — Install Rectangular Rapid Flashing Beacons ( RRFBs) approximate cost is $ 60, 000/ roundabout)
Increase driver awareness of pedestrians crossing
Solar Powered and activated by a pedestrian- push- button Option 3 — Remove and Replace Roundabouts
approximate cost is $ 1, 000, 000/ roundabout)
Demolition of concrete and landscape
Reconstruction of sidewalk, curb, gutter, landscape, and utilities Negative impacts:
o Increased vehicle emissions
o Reduced intersection capacity resulting in traffic delays o Traffic analysis required
Staff recommends that Council consider Option 1 as it provides enhanced pedestrian safety and maintains the opportunity to add Option 2 in the future, if needed.
CITY MANAGER' S REPORT PAGE 2
JANUARY 10, 2022 CITY COUNCIL REGULAR MEETING
REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT IMPROVEMENTS BACKGROUND:
At the December 13, 2021, City Council requested that staff evaluate improvements to the Towne Centre Drive and McKee Boulevard roundabout and the Brookhurst Boulevard and Golden Spike Trail roundabout located near the Mossdale Elementary School. Staff evaluated the roundabouts using the California Manual on Uniform Traffic Control Devices ( MUTCD) and reviewed available traffic accident reports.
Staff identified some initial options that will be installed as part of the approved Traffic Calming Capital Improvement Project ( CIP) PS 22- 16. Those initial improvements include the installation of the following items and will be completed in the coming weeks:
Yellow ladder crosswalk striping at all crossings of the two roundabouts Updated school crossing signs with fluorescent yellow- green background for high- visibility
No parking signs within the roundabout
Additionally, Staff evaluated the roundabouts using the California Manual on Uniform Traffic Control Devices ( MUTCD) and reviewed available traffic accident reports. The following options are being presented to Council for review and consideration:
Option 1 — Install Splitter Islands
approximate cost is $ 200, 000/ roundabout)
Setback crosswalks from roundabout to enhance pedestrian visibility Provide refuge at the centerline to pedestrians
Reduce traffic speeds
Provide separation and guide traffic
Increase space for mounting signs
Option 2 — Install Rectangular Rapid Flashing Beacons ( RRFBs) approximate cost is $ 60, 000/ roundabout)
Increase driver awareness of pedestrians crossing
Solar Powered and activated by a pedestrian- push- button Option 3 — Remove and Replace Roundabouts
approximate cost is $ 1, 000, 000/ roundabout)
Demolition of concrete and landscape
Reconstruction of sidewalk, curb, gutter, landscape, and utilities Negative impacts:
o Increased vehicle emissions
o Reduced intersection capacity resulting in traffic delays o Traffic analysis required
Staff recommends that Council consider Option 1 as it provides enhanced pedestrian safety of any single Option and maintains the opportunity to add Option 2 in the future, if needed.
CITY MANAGER' S REPORT PAGE 3
JANUARY 10, 2022 CITY COUNCIL REGULAR MEETING
REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT IMPROVEMENTS REASON FOR RECOMMENDATION:
Staff is requesting that Council consider the proposed improvement for the Roundabouts near Mossdale Elementary School. Staff recommends that Council consider Option 1 as it provides enhanced pedestrian safety and maintains the opportunity to add Option 2 in the future, if needed.
FISCAL IMPACT:
The initial signage and striping improvements are included in the Traffic Calming CIP PS 22- 16.
Staff estimates the approximate construction costs below for the three options presented to Council:
Option 1 - Install Splitter Islands 200, 000/ roundabout 400, 000 total
Option 2 - Install Rectangular
Rapid Flashing Beacons ( RRFBs) 60, 000/ roundabout
120, 000 total
Option 3 - Remove and Replace 1, 000, 000/ roundabout
Roundabouts 2, 000, 000 total
Staff will pursue the option selected by Council develop construction documents, secure bids for the project, return to Council for approval of the construction contract, and approval of related budget amendment.
ATTACH M ENTS:
A. Exhibit Option 1 - Install Splitter Islands
B. Exhibit Option 2 - Install Rectangular Rapid Flashing Beacons ( RRFBs) C. Exhibit Option 3 - Remove and Replace Roundabouts
CITY MANAGER' S REPORT PAGE 4
JANUARY 10, 2022 CITY COUNCIL REGULAR MEETING
REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUTS IMPROVEMENTS APPROVALS:
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Assistant Engineer
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Brad lor Da e
Land Development Manager
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Michael King Date
Director of Public Works
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Glenn Gebhardt Dat
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Cari Jam Date
Director inance
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Salvador Navarrete Date
City Attorney
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Stephen J. S tor Date
City Manager
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