South Massachusetts Avenue Corridor Safety...
Transcript of South Massachusetts Avenue Corridor Safety...
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South Massachusetts Avenue Corridor Safety Improvements
SMA Advisory Committee Meeting #4| Sept. 12, 2018
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• Welcome• Review of Project
Background & Goals• Recent Process• Review of Current Issues• Discussion of Evaluation
Questions and Metrics• Schedule Update• Discussion/
Questions
AgendaMassachusetts Avenue – Sidney Street to Memorial Drive
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PROJECT BACKGROUND
Municipal Policies
Complete Streets are designed and operated to enable safe access for all users –regardless of age, ability, or mode of transportation (2016).
Vision Zero calls for the elimination of fatalities and serious injuries resulting from traffic crashes, and emphasizes that they can, and should be prevented (2016).
Vehicle Trip Reduction Ordinance established programs to encourage alternatives to single-occupancy vehicle travel (1992).
Cambridge Growth Policy emphasizes sustainable modes of transportation such as walking, biking and using transit and low-emission vehicles, which promote livability and help to improve air quality and reduce greenhouse gas emissions (1993/2007).
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PROJECT BACKGROUND
Flexible Implementation
Based on Policies and Plans and direction of City leadership:
• Evaluate and implement “quick build” solutions to enhance the comfort and promote sustainable transportation for people walking, biking, driving and using transit
Designs that are flexible after implementation
Modifications possible based on evaluation (including feedback)
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CORRIDOR INFORMATION
Corridor Safety HistoryReported Crashes Requiring EMS Transport, 2015-2016
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CORRIDOR INFORMATION
People Bicycling
Throughout the entire corridor length, users experience the second lowest level of comfort.
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People Walking
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CORRIDOR INFORMATION
Local and regional destinations and connections
Evaluating ease and comfort of crossing at and between intersections
Walking in this corridor:
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Transit Service AnalysisMBTA Bus Route 1*: AM Peak
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Composite Grade*
Excellent (A)
Good (B)
Satisfactory (C)
Unsatisfactory (D)
Poor (E)
Failing (F)
N/A
CORRIDOR INFORMATION
Areas of most concern
*Route 1 is ranked in top 5 MBTA bus routes for ridership.
*Criteria:Excess vehicle travel time compared to a minimumPassenger time (travel time x riders)Reliability (how much the travel time varies)
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Transit ServiceMBTA Bus Route 1: PM Peak
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Method: Automatic Passenger Counter (APC) Data (MBTA)
CORRIDOR INFORMATION
Composite Grade
Excellent (A)
Good (B)
Satisfactory (C)
Unsatisfactory (D)
Poor (E)
Failing (F)
N/A
Areas of most concern
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Project Goals Address safety
issues and reduce crashes - Vision Zero
Reduce transit delays
Enable/encourage people of all ages and abilities to choose sustainable transportation
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Public ProcessAppointed Advisory Committee
Wikimap online
Survey online and at public meetings
Outreach to Businesses Direct meetings with XX local businesses
Coordination with CSBA
Individual Stakeholder meetings
Transit/Ped/Bike Committees
Communitywide Meetings
Posted and electronic
announcements
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Public FeedbackNeed for safer conditions for bicyclists
Motorists and delivery vehicles block bike lanes Desire for greater separation from moving vehicles
Need for additional crosswalks traversing Mass Ave
Desire to improve transit operations
Concerns about unpredictable ridesharing, tour bus, food truck, commercial loading & pick-up/drop-off activity
Relocate MIT-related tour buses loading/unloading
Concerns about long vehicle queues, traffic at Vassar Street
Minimize conflicts, bus/bike conflicts and bike/ped conflicts at 77 Mass Ave.
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Actions Since Last Public Meeting
• Additional outreach – 3 farmers markets, 2 senior coffees, 1 senior town meeting, 2 Central Fleas, 1 Taste of Cambridge,
• Review curb use changes with MIT• Investigate additional queue jumps for the bus in NB
direction• Coordination with state agencies on additional
measures in short and long-term on state facilities• Additional review of traffic analysis
• Ascertain that design does not negatively impact corridor bus service prior to implementation
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South Mass. Ave. CorridorDraft Design – Before and After
Before After
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Proposed Design Three Main Sections
Section 1:Sidney St to Albany St
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Proposed Design Section 1: Sidney St to Albany St (A)
Sid
ney
St
Bla
nche
St
DRAFT
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Proposed Design Section 1: Sidney St to Albany St (B)
DRAFT
New Crosswalk& RRFB (rectangular rapid flash beacon
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Proposed Design Section 1: Sidney St to Albany St (C)
DRAFT
New Crosswalk& Rectangular Rapid Flash Beacon
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Proposed Design Section 2: Albany St & Vassar St
DRAFT
Bike signal&
Right-turn lane
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Proposed Design
Mass. Ave
DRAFT
Potential future opportunity to increase space for bicyclists by modifying curb extensions
Bike signal &right-turn laneseparate movements
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Proposed Design
Mass. Ave
DRAFT
Bike signal &right-turn laneseparate movements
Vehicle Movement
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Proposed Design
Mass. Ave
DRAFT
Bike signal &right-turn laneseparate movements
Bicycle MovementPedestrian Movement
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CORRIDOR INFORMATION
Proposed Design Three Main Sections
Section 3:MIT
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Proposed Design Section 3: MIT (A)
DRAFT
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Proposed Design Section 3: MIT (B)
Mem
oria
l Dr
DRAFT
Am
hers
t St
Remove MBTA Bus Stop, consistent with MBTA Service Plan
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Project Evaluation Questions & Data Collection
• User Feedback• On-line survey; hard copies available• Wikimap• Intercept surveys
• Technical Data• Counts: motor vehicles, pedestrian, cyclists• Speeds• Travel times along corridor
• Transit vehicles• Motor vehicles
• Safety Data• Crash analysis (requires 3 years for statistical validity, but will
monitor for issues and trends 26
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Project Evaluation Questions & Data Collection
• Signal intersections• Vehicle queues• LOS for Pedestrians• Conflicts
• New Pedestrian Crossing• Counts: number of users• Yield study (based on standard protocols)
• Parking/Loading/Ride Hail• Parking study• Delivery vehicles• Observations: where are ride hail vehicles stopping?
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ScheduleBicycle, pedestrian,traffic countsApril
Refine DesignMay - August
Public Meeting #1May 3
Parking studyWeek of April 30
Anticipated ImplementationFall/Oct 2018
Evaluation
AdvisoryCommittee Meetings #2-3May, Sept.
NEXT STEPS
AdvisoryCommittee Meeting #1April 11
Public Meeting #2/Open HouseJune 19
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Blank Slide
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisThree Main Sections
The corridor has been divided into 3 sections for clarity
Section 1:Sidney St to Albany St
Section 2:Albany St to Vassar St
Section 3:MIT
Sidn
ey S
t
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisCross Sections
• The three general cross sections (intersections vary)
3131
Section 1:Sidney St to Albany St
Section 2:Albany St to Vassar St
Section 3:MIT
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Most Complicated
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Section 1:Sidney St to Albany St
Section 2:Albany St to Vassar St
Section 3:MIT
Sidn
ey S
t
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBus Facilities
Bus lanes proposed for two sections, to address the key areas of delay
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBus Facility Details - After
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBus Facility Details - Before
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBus Facility Details
Bus lanes at intersections: Right turning motorists may use bus lane
National Precedent
Design Sample
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBicycle Facilities
For most of the corridor, separated bike lanes can be created using on-street parking and flex posts
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Section 1:Sidney St to Albany St
Section 2:Albany St to Vassar St
Section 3:MIT
Sidn
ey S
t
36Flexpost/Parking ProtectionBike Lanes
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBus Facility Details
Bus lanes at intersections: Right turning motorists may use bus lane
National Precedent
Design Sample
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisBus Facility Details
Bus Lanes with Parking
Boston, MA - Wikimedia Commons
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Bicycle FacilitiesSeparated Bike Lane –Parking Protected
DESIGN OVERVIEW
Parking Protected Bicycle Lanes
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Bicycle FacilitiesBike Lane with Curbside Parking
DESIGN OVERVIEW
Curbside parking/Accessible Parking
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DESIGN OVERVIEW
Parking FacilitiesAccessible Parking
414141Denver, CO
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Bus Stop OptionsDESIGN OVERVIEW
Bus stop at curb Floating bus stop(possible future item)
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CORRIDOR INFORMATION
Bus Stop Options
Potential for a future modular floating bus stop under evaluation
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisThree Main Sections
• Detailed Design
Section 1:Sidney St to Albany St
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisSection 1: Sidney St to Albany St (A)
Sid
ney
St
Bla
nche
St
DRAFT
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisSection 1: Sidney St to Albany St (B)
DRAFT
New Crosswalk& RRFB
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisSection 1: Sidney St to Albany St (C)
DRAFT
New Crosswalk& RRFB
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisSection 2: Albany St & Vassar St
DRAFT
Bike signal&
Right-turn lane
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Vassar Street
Design Analysis
Mass. Ave
Potential future opportunity to increase space for bicyclists by modifying bulb-outs
DRAFT
Bike signal &Right-turn laneSeparates movements
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisThree Main Sections
Other Design Details
Section 3:MIT
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisSection 3: MIT (A)
DRAFT
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CORRIDOR INFORMATION
Transportation/Traffic AnalysisSection 3: MIT (B)
Mem
oria
l Dr
DRAFT
Am
hers
t St
Remove MBTA Bus Stop, consistent with MBTA Service Plan
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Existing Conditions Mass. Ave. Cross-Section (at Amherst Street)
88’ wide
On-street bike lane
On-street vehicle parking
Mix of meters and other parking
Bus stops
Curb extensions at multiple locations
14’Sidewalk
9’Parking
12’Travel
11’Travel
8’Parking
13’Sidewalk
5’BikeLane
11’Travel
5’BikeLane
CORRIDOR INFORMATION
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CORRIDOR INFORMATION
Safety History Reported Bicycle Crashes, 2015-2016
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Project Limits
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CORRIDOR INFORMATION
Transportation/Traffic Analysis
• Corridor-wide transportation analysis to determine where:
• Bus lanes can be added• Vehicle lanes can be repurposed• Signal operations can be modified• Bicycle lanes can be separated• Bicycle buffers can be added• Parking can be re-located for better operations