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I-80 at Gilman StreetInterchange Roundabouts
07 February 2018
1
2
Presentation Overview
» Project Planning Process
» Project Components
» Project Implications
» Future Steps
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Gilman Street Vicinity Map
Illustrations are conceptual
drafts subject to change
Project Area
San Francisco Bay
80
N
4
CollisionData 2012‐2015
West Bound On-RampInjuries + Fatalities: 38% above State Average
Total: 52% below State Average
West Bound Off-RampInjuries + Fatalities: 19% below State Average
Total: 115% above State Average
East Bound Off-RampInjuries + Fatalities: 3% below State Average
Total: 33% below State Average
East Bound On-RampInjuries + Fatalities : 95% above State Average
Total: 35% above State Average
GILM
AN
ST
WB I-80
EB I-80
80
N
Illustrations are conceptual
drafts subject to change
Interchange is also
identified by the
City of Berkeley as
“high stress” for
bicyclists.Source: 2017 City of Berkeley
Bicycle Plan
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5
Past Studies
» West Berkeley Parking and Circulation Study (1998)
» Gilman Street Interchange Improvement Study (2005)
» Draft Project Study Report (PSR) (2005)
» West Berkeley Circulation Master Plan Report (2009)
» Project Study Report‐Project Development Support (PSR‐PDS) (2014)
These studies concluded: » Signalization and stop signs would both fail.
» No room for diamond interchange.
» Only workable solution is roundabouts.
6
Project Partners
» Caltrans
» Alameda County Transportation Commission (ACTC)
» City of Berkeley
» City of Albany
Consultant Team Key Members
» Parsons – Project Management
» OMNI‐MEANS – Roundabout Design
» TJKM – Traffic Engineering
» PlaceWorks – Public Engagement
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Project Purpose
» Improve safety for all modes of transportation.
» Simplify and improve the navigation, mobility, and traffic operations at the I‐80/Gilman Street interchange.
» Reduce congestion, vehicle queues and conflicts at the I‐80/Gilman Street interchange.
» Improve local and regional bicycle connections and pedestrian facilities through the I‐80/Gilman Street interchange.
8
Project Planning Meetings To Date
» March 15, 2016: Meeting with Public Agencies
» March 17, 2016: Meeting with Community Based Organizations
» March 24, 2016: Meeting with Business Owners
» April 14, 2016: Meeting with Pacific Steel Casting
» April 27, 2016: Open House
» May 4, 2016: Meeting with Business Owners
» August 26, 2016: Meeting with Golden Gate Fields
» August 29, 2017: Meeting with Business Owners
» Late 2017 – 2018: On‐going meetings with City of Berkeley, City of Albany, and
other stakeholders
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DesignElements
» Two roundabouts
» Landscaped areas
» Sidewalks and at‐grade path
through interchange
» Pedestrian / bike overcrossing
(POC) over
I‐80 to the north or south
» Gilman Street cycle track to new
signal at Fourth Street
» Bike improvements from Gilman /
Fourth Street to Codornices Creek
» New access to Golden Gate Fields
stables
» Bay Trail gap closure at foot of
Gilman Street
80
Golden Gate FieldsTom Bates RegionalSports Complex
Pacific Steel
Red‐D‐Arc
Gilm
an St
Gilm
an St
N
Illustrations are conceptual
drafts subject to change
10
Design Elements Southern POC Option
Page St
W Frontage Rd
Eastshore HwyEastshore Hwy
Gilm
an St
Harrison St
2nd St
Golden Gate FieldsTom Bates Regional Sports Complex
80
N
Illustrations are
conceptual drafts
subject to change
Bay Trail
10
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Design Elements Northern POC Option
W Frontage Rd
Eastshore HwyEastshore Hwy
Gilm
an St
Harrison St
2nd St
Golden Gate FieldsTom Bates Regional Sports Complex
80
N
Illustrations are
conceptual drafts
subject to change
Bay Trail
11
12
Roundabout Operations
» Only need to watch for traffic coming from one direction at a time
» Shorter, simpler pedestrian crossings
» Slower traffic
» Pedestrian refuges
» Landscape separation
» Shared‐use path
Raised central island
Landscape buffer
Pedestrian path
Truck apron
Entry deflection
Splitter island
Pedestrian refuge
v
Illustrations are conceptual
drafts subject to change
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Roundabout Safety – Why Roundabouts?
» Improves overall safety
» According to the Federal Highway Administration, installing a roundabout
typically results in:
• 76% reduction in injury collisions
• 90% reduction in fatality collisions
• 40% reduction in pedestrian injuries
• 75% fewer conflict points compared to standard intersections
Source: Federal Highway Administration, Safe Roads for a Safe Future, 2015.
14
Travel Paths Through Roundabouts
From Gilman St to
I‐80 West80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
Gilman St
NIllustrations are conceptual
drafts subject to change
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Travel Paths Through Roundabouts
From Gilman St
To Golden Gate
Fields and
Eastshore State
Park
80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman StGilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
16
Travel Paths Through Roundabouts
From Eastshore
State Park to I‐80
East80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman StGilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
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Travel Paths Through Roundabouts
From West
Frontage Road
south Gilman
Street to I‐80 East
80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman StGilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
18
Travel Paths Through Roundabouts
From I‐80 East to
Gilman Street80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman StGilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
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Travel Paths Through Roundabouts
From I‐80 West to
Gilman Street80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman StGilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
20
80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman StGilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
Bike and Pedestrian Improvements at the Roundabouts
Sidewalk or shared use path on north side
Bike only exit
Gilman St crossing
Shared Use Path on south side
NIllustrations are conceptual
drafts subject to change
Bike and Pedestrian Connection
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Travel Paths Through Roundabouts
Pedestrian/
Bicycle route
from West
Frontage Road,
north of Gilman
Street, to east
80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
Gilman St
22
Travel Paths Through Roundabouts
Pedestrian/
Bicycle route
from West
Frontage Road,
south of Gilman
Street, to east
80
Eastshore
Hwy
Eastshore
Hwy
I‐80 EB Offramp
I‐80 EB Onramp
Gilman St
2nd St
2nd St
GoldenGateFields
Tom BatesRegionalSports Complex
NIllustrations are conceptual
drafts subject to change
Gilman St
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Roundabout Visual Simulation
For information purposes only –Not to scale
Illustrations are
conceptual drafts
subject to change
Eastern Roundabout viewed from northwest near Golden Gate Fields
24
Pedestrian Overcrossings Southern POC Option
Page St
W Frontage Rd
Eastshore HwyEastshore Hwy
Gilm
an St
Harrison St
2nd St
Golden Gate FieldsTom Bates Regional Sports Complex
80
N
Illustrations are
conceptual drafts
subject to change
Bay Trail
24
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Pedestrian Overcrossings Northern POC Option
W Frontage Rd
Eastshore HwyEastshore Hwy
Gilm
an St
Harrison St
2nd St
Golden Gate FieldsTom Bates Regional Sports Complex
80
N
Illustrations are
conceptual drafts
subject to change
25
Bay Trail
26
Pedestrian Overcrossing Features
Separate bicycle and pedestrian areas
Bay Bridge east span path
University Avenue bike/pedestrian overcrossing
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South Pedestrian Overcrossing Option
For information purposes only –Not to scale
Illustrations are
conceptual drafts
subject to change
Visual simulation from Interstate 80 Eastbound looking north
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South Pedestrian Overcrossing Option
For information purposes only –Not to scale
Illustrations are
conceptual drafts
subject to change
Visual simulation from Bay Trail southwest of Gilman Street
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South Pedestrian Overcrossing Option
For information purposes only –Not to scale
Illustrations are
conceptual drafts
subject to change
Visual simulation from Eastshore Highway southeast of Gilman Street
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North Pedestrian Overcrossing Option
For information purposes only –Not to scale
Visual simulation from Interstate 80 Westbound looking south
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North Pedestrian Overcrossing Option
For information purposes only –Not to scale
Visual simulation from west end of Gilman Street
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North Pedestrian Overcrossing Option
For information purposes only –Not to scale
Visual simulation from Harrison Street looking west
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Two‐Way Cycle Track
Bancroft Way, Berkeley
San Pablo Ave, Albany
Bancroft Way, Berkeley
34
Gilman Street Cycle Track (Southern POC)
Cycle Track
Gilman St
2nd St
4th St
80
City of BerkeleyRecyclingCenter
Red‐D‐Arc
Pacific Steel
N
Illustrations are
conceptual drafts
subject to change
34
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Gilman Street Cycle Track (Northern POC)
Cycle Track
Gilman St
2nd St
4th St
80
Red‐D‐Arc
Pacific Steel
City of BerkeleyRecyclingCenter
N
Illustrations are
conceptual drafts
subject to change
36
Gilman St to CodornicesCreek Connection
Restriped parking and crosswalks
New bicycle sharrows
New traffic signal at Gilman and 4th St
4th St
Gilman St
N
5th St
Harrison St
Codornices Creek
Illustrations are conceptual
drafts subject to change
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Bay Trail Gap Closure
Golden Gate Fields Stables
Tom Bates RegionalSports Complex
San Francisco Bay
80
N
Illustrations are conceptual
drafts subject to change37
New Bay Trail to be Installed by EBRPD
Existing Bay Trail
New Bay Trail to be Installed by Project
38
Project Implications
» Vehicle Queuing
» Right‐of‐Way issues
» Change in access between Gilman and Eastshore Highway
» Changes to Golden Gate Fields access
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2nd St
Gilman St
City of Berkeley Recycling CenterRed‐D‐Arc
Pacific Steel
ESH
Un
ion
Pa
cif
ic R
ailr
oa
d
Westbound Vehicle queues extend 183’
Vehicle Queue
Queuing
N Illustrations are conceptual
drafts subject to change
80
40
Right-of-way acquisition for Northern POC
Right‐of‐Way AcquisitionThe project requires ROW takes on west side of freeway.
Southern POC requires no additional right‐of‐way acquisitions on east side of freeway.
Northern POC requires limited right‐of‐way acquisition at Red‐D‐Arc / Airgas, Pacific Steel and Budget Rent‐a‐Car (where curb cuts will be moved from Gilman to Second).
Right of way take
2n
d S
t
Gilman St
City of Berkeley Recycling CenterRed‐D‐Arc
Pacific Steel
ES
H
Un
ion
Pa
cif
ic R
ailr
oa
d
N Illustrations are conceptual
drafts subject to change
80
Budget Rent‐a‐Car
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41
Harrison
St
Change in Vehicular Access
N
Illustrations are conceptual
drafts subject to change
Eastshore Hwy
City of Berkeley Recycling Center
PublicStorage
2nd St
Gilm
an St
Red‐D‐Arc / Airgas
80
42
SB EastshoreHighwayAccess via Second St
From I‐80/Gilman St to Southbound Eastshore Highway
Northbound Eastshore Highway to Gilman St/ I‐80 ramps
Illustrations are conceptual
drafts subject to change
I-80 EB Offramp
PacificSteel
2nd St
Gilm
an St
80
Page St Berkeley
Forge & Tool
N
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Options to Address Change in Access
» Enhanced paving, streetscape and signage
» Full roundabout access northbound
• Access to and from Eastshore Highway north of Gilman
• Includes right turn from Gilman westbound to Eastshore Highway northbound
• Access from Gilman to Eastshore Highway southbound would still be closed
» Right turn only northbound
• From Gilman westbound to Eastshore Highway northbound only
» One‐way Second Street south of Gilman Street
• From Gilman to Page Street
44
Harrison St
Options to Address Change in Access
New Paving, Enhanced Streetscape and Signage
From I‐80/ Gilman St to Northbound EastshoreHighway
From Southbound EastshoreHighway to Gilman St/I‐80 ramps
Second St
City of Berkeley Recycling Center
Eastshore
Hwy`
I‐80 EB Onramp
Public Storage
Sec
ond
St
to E
asts
hore
Hw
y
Harrison Stto Eastshore Hwy
Gilman StIllustrations are conceptual
drafts subject to change
80
N
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45
Options to Address Change in Access
New Paving, Enhanced Streetscape and Signage
Visual simulation of Second Street looking north from Gilman
46
Second St
Red‐D‐Arc
Pacific Steel
I‐80 EB Onramp
Union Pacific Railroad
Gilman St
ESH
City of Berkeley Recycling Center
Options to Address Change in Access
Full Roundabout Access Northbound
» Bike and vehicle access to northbound Eastshore Highway from the roundabout
» Right turn lane from Gilman westbound
» Would not include direct access from roundabout to Eastshore Highway southbound
Illustrations are conceptual
drafts subject to change
80
N
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Options to Address Change in Access
Full Roundabout Access Northbound
Implication #1
Longer,
unacceptable
queuing
Westbound Vehicle queues extend 350’ creating conflicts with Second Street.
Vehicle Queue
Red‐D‐Arc
Pacific Steel
I‐80 EB Onramp
ESH
City of Berkeley Recycling Center80
Second St
Gilman St
Illustrations are conceptual
drafts subject to change
N
Union Pacific Railroad
48
Three right turns
from a single
lane could
confuse
motorists
With all right turn options, the right turn pocket begins prior to Second St. requiring 3 right turn movements to be signed: Second St, Eastshore Hwy and Eastbound I-80
Options to Address Change in Access
Full Roundabout AccessNorthbound
Implication #2
Illustrations are conceptual
drafts subject to change
Red‐D‐Arc
Pacific Steel
I‐80 EB Onramp
ESH
City of Berkeley Recycling Center80
Second St
Union Pacific RailroadGilman St
N
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Full take of Red‐
D‐Arc building
and business
Additional right of way impacts to buildings result in full parcel take and relocation of business
Right-of-way take
Options to Address Change in Access
Full Roundabout AccessNorthbound
Implication #3
Pacific Steel
I‐80 EB Onramp
Gilman St
ESH
City of Berkeley Recycling Center
80
N
Union Pacific Railroad
Illustrations are conceptual
drafts subject to change
Red‐D‐Arc
50
Gilman St
Un
ion
Pa
cif
ic R
ailr
oa
d
Options to Address Change in Access
Right Turn only from Gilman St westbound to EastshoreHighway northbound
Second St
Red‐D‐Arc
Pacific Steel
I‐80 EB Onramp
Union Pacific Railroad
Gilman St
ESH
City of Berkeley Recycling Center
Illustrations are conceptual
drafts subject to change
80
N
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Options to Address Change in Access
Right Turn Only Implications
Queuing returns to previously predicted levels
Same ROW take as for roundabout with full northbound access
Shorter queuing length means that adequate signage could be provided
Illustrations are
conceptual drafts
subject to change
52
SB EastshoreHighwayAccess via Second St
From I‐80/Gilman St to Southbound Eastshore Highway
Northbound Eastshore Highway to Gilman St/ I‐80 ramps
Illustrations are conceptual
drafts subject to change
I-80 EB Offramp
PacificSteel
2nd St
Gilm
an St
80
Page St
Berkeley Forge & Tool
N
One‐way southbound
Parking Lane
Travel Lane
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53
Changes to Golden Gate Fields Access
Golden Gate Fields Stables
Tom BatesRegionalSports Complex
San Francisco Bay
80
N
Illustrations are conceptual
drafts subject to change53
Bay Trail
54
Future Steps
» City presentations
• Berkeley Transportation Commission: February or March
• Albany City Council: February or March
» On‐going outreach
» Preparation of environmental document
» On‐going design and project refinement
» Construction: Late 2019 through 2022
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I-80 at Gilman StreetInterchange Roundabouts
07 February 2018
55