HomeMy WebLinkAbout19 - Review of Conceptual Street Layout Alternatives for Bayside Drive - PowerPointisayside
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Im rovement Pro'ect
Concept Layout Review
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Begin Staff Review - Summer 2014
Two initial concept options prepared and refined through public outreach,
data collection and observations
After Council/Community Review on 11/22/15 - Council requested Staff to
proceed with project Design of Two -Lane Concept with Roundabout with:
Review of alternative configurations at request of Linda Isle — Presented' to Board
Additional outreach to Balboa Island
1, Held Community Focus Group Meeting on 2/8/17
Held Community Focus Group Follow-up Meeting on 3/21/17
On 2/28/17 City Council requested
discussion and Public comment
Project programmed in current CIP
item be brought back for additional
Prosect consiriaratic
Pavement Rehabilitation
..urb/Sidewalk Repair = =
traffic Signal Rehabilitation
traffic Signage Cleanup
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Oommunity Requests
Speed/Accident Reduction
Complete Pedestrian/Bicycle Missing Links
Maintain Neighborhood Access
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Project Goals
Prior to design, staff reviewed the roadway with the
following goals:
11 Perform needed maintenance
Improve the safety and mobility of the roadway for all users and
surrounding neighbors
Open and transparent process - Include the community as
stakeholders in development of the project concepts
Bayside Drive Improvement Project
PUBLIC WORKS DEPARTMENT Project Fact Sheet
949-644-3330
Community Outreach
• Created project website
www.newportbeachca.com/bayside
Project tacadon Map
• Created project Fact Sheet
• Held 13 Public'Meetinigs with HOXs and Community
Groups
• Police Speed Enforcement Campaign — March 2017
• Second concept plan review by City Council on May
9,120,17
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Items and Features MostAgree With
• Repave Street and Maintain infrastructure
• Desire for Speedingllncident Reduction
• Desire for Sidewalk Extension (North Side)
. Desire for Bike Lane Gap Closure (South Side)
• Include Raised Landscape Medians
• Are ok with Decorative/Flush medians (maintain access
with median feel)
Vehicle Counts
Bayside — wast Hwy 13,400 3:15-4:15 11199 61400 17%
to Harbor Island Pm
Bayside — Harbor 12,100 2:45-3:45
Island to Ped Signal Pm
Harbor Island — SI0 31000 9:00-10:00
Bayside am
-Counted in August 2014
1,090
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3Y200
16%
• Average Daily Trips — both directions (ADT) — 10,000-
14,000
• Low vehicles utilization for four lane roadway
w Consistent Peak Hours
9%
Multi -Modal Peak Hour Counts
Harbor Island Drive Intersection
15
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• August 2014 Counts
• Heavily Utilized Bike Route
• Pedestrian View Corridor
30
• Bike Lane Gap/Sidewalk Cycling
• Missing Sidewalk/Mid Block Crossings
25
Actual Vehicle Speeds
Coast Hwy to 40 45 22 54
Promontory East
Promontory East to
Jamboree/Marine
35
39
27
45
• 2011 Speed Survey
• Speed Limit reduced by 5 mph (max allowed):
History of speed -related incidents
Heavy pedestrian and bicycle use
Consistent with Secondary four -lane Arterial
Roadways
March Enforcement Activity
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32 41 86 66 5000
*Why speed trailer speeds are less than speed survey:
Located just east of Harbor Island Drive ® East Bound
Trailer location captured slower, turning vehicles at Harbor Island
Drive
• Trailer is a "traffic calming" device
Vehicles tend to slow when they see the speed trailer display
Police Speed Presence
Motorists slow when around Police officers
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Design Alternatives
Three Geometric Alternatives
No Change to current configuration
Concept 1—Reduced Width —Four Lane Roadway
Concept 2 —Two/Four Lane Hybrid Roadway with Roundabout
Concept 3 —Three Lane Roadway (Created after 11/22/16 Meeting)
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Coast Highway to Harbor Island Drive
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Extend bike lane to intersection
Maintain northbound vehicle lane
geometry and capacity at Coast Hwy
Add flush surface colored pavement in
median with No Parking legends to
maintain access to driveways
One southbound vehicle lane
and bicycle/turn pocket from
Coast Hwy to Linda Isle entry
:oncept 1: Four Lane Alternative
'rom Harbor Island Drive to Pedestrian Sianal
Na change to Harbor Island intersection
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Add raised landscaped median
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Add flush surface colored pavement in
Add speed ` \ median to maintain access to homes
feedback sign-
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Narrowed four -lane configuration from
Linda Isle entry to ,Jamboree/Marine
Concept 1: Four Lane Alternative
Harbor Island Dr. to Pedestrian Signal (Continued)
Rehabilitate pedestrian traffic signal
and add high visibility crosswalk
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Add new sidewalk segment
Add speed
feedback sign
Extend bike lane to
3 intersection ` ;
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Concept 1: Four Lane Alternative
Pedestrian Signal to Jamboree Rd/Marine Ave
Add landscaped raised medians at strategic
locations to allow for all current turning movements
Add flush surface colored pavement in
median to maintain access to driveways
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Rehabilitate Jamboree Rd/
Marine Ave traffic signal
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Replacement of damaged sidewalk Maintain all lanes and add
bike lane storage pocket
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Replacement of damaged sidewalk Maintain all lanes and add
bike lane storage pocket
Concept 1: Four Lane Alternative
Expected Benefits
Potential speed reduction & Traffic Calming
. Improved lane chan nel ization
Sidewalk and Bike Lane extensions
• Roadway Beautification
Concept 2: Hybrid Alternative
Coast Highway to Harbor Island Drive
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Eike lanes separated
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by flush surface
decorative buffer
Extend bike lane to intersection
Maintain northbound lane geometry
and capacity at Coast Hwy
Add flush surface colored pavement in
median with No Parking legends to
maintain access to driveways
One south bound vehicle lane
and bicycle/turn pocket from
Coast Hwy to Linda Isle entry
Two travel lanes (one in each
direction) from Linda Isle entry
to the Pedestrian Signal
Concept 2: Hybrid Alternative
Harbor Island Drive to Pedestrian Signal
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Add speed
feedback sign
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Bike lanes separated
E X IS T I N! IQ' by flush surface
PROF'OSE I decorative buffer
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Install a modern
roundabout at the Harbor
Island Drive intersection
Continue two travel lane layout
from Linda Isle entry to the
Pedestrian Signal
Raised landscaped median
Add flush surface colored
pavement in median to
maintain access to driveways
Concept 2: Hybrid Alternative
Harbor Island Drive to Pedestrian Signal
Rehabilitate pedestrian traffic signal
and add high visibility crosswalk I I m m m
Transition to four travel (two
in each direction) lanes east
of the pedestrian signal
Add new sidewalk segment
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Add speed
-- _ feedback sign
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Extend bike lane to
Jamboree/Bayside intersection �-
Concept 2: Hybrid Alternative
Pedestrian Signal to Jamboree Rd/Marine Ave
Add landscaped raised medians at strategic
locations to allow for turning movements
Rehabilitate Jamboree Rd/
Marine Ave traffic signal
Add flush surface colored pavement in
median to maintain access to driveways
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Replace damaged sidewalk� Maintain all current lanes and
add bike lane storage pocket
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Why Consider Lane Reduction
. Reduce "racing" and speeding
• Provide more separation between moving
motor vehicles and pedestrians, cyclists and
homes
• Reduce exposure to turning vehicles
Lane Reduction Analysis
Bayside — Coast Hwy 12100 17% 31200 34% A
to Harbor Island
Bayside — Harbor
Island to Ped Signal
1,000 16%
37200
31%
With a reduction from four to two lanes, the Level of
Service on Bayside Drive is predicted to remain at "►A"
with summer volumes.
No restriction to Emergency Vehicles
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Why Consider Roundabout
• Proven to reduce speeds and calm traffic
• Reduction of incidents/severity
Facilitate intersection turning movements while
maintaining a continuous flaw of traffic
Becoming common in Orange County neighborhoods
2 -lane road standard
intersection
2 -way roundabout
• 32 Whicle to vehicIQ conflicts • 8 Vehicle to vehicle
■ 24 Vehicle to ,pedestrian conflicts I ■ 8 Vehicle to pedestrian
Roundabout Analysis
Roundabout expected to operate efficiently:
Per Federal Highway Administration, single lane
roundabouts can handle up to 25,000 ADT
(Bayside Drive Summer A D T = 13,400)
Highway Capacity Manual analysis predicted Level
of Service "A" for proposed roundabout design
Concept 2: Hybrid Alternative (Roundabout)
Expected Benefits
Expect speed reduction
Reduced incident severity
Improved than nel ization
Increased sight distance
m Reduction of sidewalk cycling
■ More local roadway feel/Entry monument
Potential future Golf Cart connection
Concept 3: Three Lane (new)
Coast Highway to Harbor Island Drive
SB Bike lane
separated by flush
surface decorative
buffer
Extend bike lane to intersection
Maintain northbound lane geometry
and capacity at Coast Hwy
Add flush surface colored pavement in
median with No Parking legends to maintain
access to driveways
1 A VE'sw l -
5 One south bound vehicle lane
and bicycle/turn pocket from
Coast Hwy to Linda Isle entry
S Single Southbound Continues
to the Pedestrian Signal
Concept 3: Three Lane Alternative (new)
From Harbor Island Drive to Pedestrian Sianal
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Add speed
feedback sign
Single Southbound lane and
buffered bike lane Continue to
the Pedestrian Signal
No change to Harbor Island intersection
PTwo Northbound lanes are
aintained and a buffered
ike lane is added
Add raised landscaped median
Add flush surface colored pavement in
median to maintain access to homes
Concept 3: Three Lane Alternative (new)
Harbor island Dr. to Pedestrian Signal (Continued)
walk
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Concept 3: Three Lane Alternative (new)
Pedestrian Signal to Jamboree Rd/Marine Ave
Add landscaped raised medians at strategic
locations to allow for all current turning movements
Add flush surface colored pavement in
median to maintain access to driveways
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Rehabilitate Jamboree Rd/
Marine Ave traffic signal
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Replacement of damaged sidewalk I Maintain all lanes and add
bike lane storage pocket
Concept 3: Three Lane Alternative (new)
Expected Benefits
• Potential speed reduction &Traffic Calming
• Enhanced Traffic Calming and sight distance for
fronting homes and Harbor Island intersection
w Reduction of sidewalk cycling
Improved lane chan nel ization
Sidewalk and Bike Lane extensions
• Roadway Beautification
One Lane Approach to Linda Island
Linda Isle Resident Concerns.
m Not sufficient gap in traffic to pull out
• Vehicles blocked while entering into community
Considerations
• Reduces exposure for exiting vehicles
• Maintain flush median to facilitate turns
• Wide shoulder Creates vehicle turn lane to accommodate
ingress ►without blocking through movement
• Allows for completion of Northbound Bike Lane
• Can be tried as a trial
One Lane Approach to Linda Isle
Flush Median
Facilitates left-turnsn
from Linda Isle
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mak'
Shared right turn vehicle lane and
bike lane —Allow turning vehicles to
move out of the travel lane without
impeding traffic— maintains bike
movement
Single Eastbound travel lane —
Channelize flow of traffic and
reduce turning movement
exposure
Temporary Trial of New Concept
Can the roadway be temporarily reconfigured
as a trial of the new concept?
m Yes - If a two or three lane concept are chosen
• The roundabout may not be installed as a trial
- Consists of temporary resurface and striping
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No Change Alternative - $1,200,000
• Repave roadway with existing layout and
• Rehabilitate traffic signals
• Preferred by a ferny residents
w No Traffic Calming or Multi Modal benefits
Four -Lane Alternative (Concept 1) - $1,800,000
• Moderate Traffic calming benefits
• Maintains highest flow of traffic
• Bike lane and Pedestrian Facility Improvements
• Preferred alternative for most HOA's
ntinue
Two -Lane with Roundabout (Concept 2) ~ $2,200,000
• Previously approved by City Council —11/22/16
• Reduction from 4 to 2 lanes
• Roundabout at Harbor Island Drive intersection
• Greatest potential for traffic calming and incident
reduction
• Increased cycling comfort/reduction of sidewalk riding
• Preferred alternative for residents that front Bayside
Majority of HOA's and The Irvine Company are apposed,
stating concerns with congestion and trouble negotiating
the roundabout
ntinue
Three Lane Alternative (Concept 3) ~ $2,000,000
Concept reviewed/developed through Public Outreach
after 11/22/16 Council Meeting
Potential traffic calming for adjacent homes through
greater separation between moving vehicles and
Promontory Bay homes
Maintains current westbound traffic flaw with two lanes
Increased cycling comfort/reduction of sidewalk riding
Considered by some community members as a
"compromise"
ntinue
Trial of Revised Roadway Layout ~ $30,000
Concept developed through Public Outreach —
Community members asked for a 6-9 month for trial of
lane reduction, if chosen
Possible for lane reduction options (Concept 2 or 3)
Requires construction project for temporary roadway
slury coat and installation of revised striping
rt Not feasible to install the roundabout as a temporary trial
Benefit: Gives opportunity for Community and staff to
experience the roadway with less lanes.
Tentative Schedule
• Preferred alternative selected by City Council
• Begin Design: Summer 2017
• Begin Construction: Winter 2018
NOTE: Schedule will be extended with approval of a temporary trial
Final Thoughts
Ib
•Several viable alternatives have been considered and
reviewed by City Staff and the Community
• Each of the Conceptual Alternatives provides a level of
mobility and traffic calming improvement
Staff has reviewed each alternative and believes they will
roadway will all work and continue to flow with minimal
delay
The Public Outreach has been extensive and the
Community agrees improvements can be made, but there
is no overwhelming majority on any of the three concepts
Questions Comments
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