Mount Auburn Street Corridor Study November 1, 2016 Russell Youth - - PowerPoint PPT Presentation

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Mount Auburn Street Corridor Study November 1, 2016 Russell Youth - - PowerPoint PPT Presentation

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Mount Auburn Street Corridor Study November 1, 2016 Russell Youth Community Center Commonwealth of Massachusetts Governor Charles D. Baker Lieutenant Governor Karyn E. Polito Energy and Environmental Secretary Matthew A. Beaton Department

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November 1, 2016 Russell Youth Community Center

Mount Auburn Street Corridor Study

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Mount Auburn Street Corridor Study

Commonwealth of Massachusetts

Governor

Charles D. Baker

Lieutenant Governor

Karyn E. Polito

Energy and Environmental Secretary

Matthew A. Beaton

Department of Conservation and Recreation Commissioner

Leo P. Roy

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Mount Auburn Street Corridor Study

DCR Mission Statement

To protect, promote and enhance our common wealth of natural, cultural and recreational resources for the well-being of all.

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Project Area

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Schedule

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Agenda

  • Welcome
  • Road Safety Audit Results
  • Road Diet Analysis
  • VISSIM Analysis – Early Results
  • VISSIM Takeaways & Design Changes
  • Community Feedback Design Changes
  • Landscaping Ideas
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Road Safety Audit Results

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Crash Rate Comparison: 2011-2015 (5 years)

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Crash Type Comparison

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Crash Severity Comparison

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Fresh Pond Parkway at Huron Avenue

  • No overhead traffic signal

indications

– Poor visibility for existing signals approaching from Fresh Pond Parkway – Rear-end crashes on Fresh Pond Parkway NB and SB – Red light running

  • Left turns restricted, but only during

peak hours – No “protected” (green arrow) phasing; vehicles must turn left against oncoming traffic – Crashes involving SB left- turning vehicles and NB through vehicles

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Takeaways – Fresh Pond Parkway at Huron Avenue

  • Install Overhead

Signals

  • Check yellow and

“all red” signal phases

  • Consider Restricting

Fresh Pond Parkway Left Turns 24/7

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Mount Auburn Street Corridor Study

Fresh Pond Parkway at Mount Auburn Street

  • Large pavement area

– Unclear vehicle paths – High-speed turns due to large corner radii

  • Turns restricted due to geometry or

signal phasing – Motorists may make illegal turn rather than attempt to find legal route – e.g. Fresh Pond Parkway southbound vehicles looking for Mt. Auburn Hospital

  • Unclear lane use (Fresh Pond Parkway

southbound) – Wide enough for 3-4 lanes, marked for 2 lanes

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Fresh Pond Parkway at Mount Auburn Street (cont’d)

  • Poor signal visibility

– No overhead indications at most approaches – Large intersection area

  • Pedestrians must cross

Gerrys Landing Road in three stages – Two pedestrian crashes – Pedestrians more likely to disobey signals with longer delay

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Mount Auburn Street Corridor Study

Takeaways – Fresh Pond Parkway at Mount Auburn Street

  • Reduce Pavement &

Improve Markings

  • Install Overhead Signals
  • Remove 3rd Southbound

Lane

  • Reduce Pedestrian Delay
  • Improve Pedestrian

Crossings

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Mount Auburn Street Corridor Study

Mount Auburn Street at Brattle Street/Aberdeen Avenue

  • Brattle St. slip lane

– Intersects Mt. Auburn St. just 100’ east of Aberdeen Avenue stop line

  • Rear-end crashes
  • Merge with traffic occurs within

queue for intersection – Stop line set back from Aberdeen Avenue by 100’

  • Signal Indications

– No overhead signals – poor visibility – Westbound left-turn lag phase – left-turn and rear-end crashes – Aberdeen southbound left-turns get little green time

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Takeaways – Mount Auburn Street at Brattle Street/Aberdeen Avenue

  • Install Overhead Signals
  • Adjust signals at Aberdeen
  • Remove Brattle/
  • Mt. Auburn Merge
  • T-Up Intersection at Brattle
  • Install New Signal at Brattle
  • Create Signal-Protected

Bike Crossing

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Road Diet Analysis

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Fresh Pond Parkway 4:3 Road Diet – AM Peak Queues

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Fresh Pond Parkway 4:3 Road Diet – PM Peak Queues

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Fresh Pond Parkway 4:3 Road Diet – Cut Through Streets

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Review of Shared Goals

  • 1. Calm traffic, provide clarity, reduce crashes and severity of crashes
  • 2. Improve connectivity, air quality and expand mobility choices by:
  • a. Measuring people, not cars
  • b. Reducing transit delays
  • c. Improving safety, access, parking and comfort for bicycles.
  • d. Maintaining mobility for motor vehicles
  • e. Improving safety, attractiveness, noise, and comfort for pedestrians

and residents

  • 3. Address cut-through traffic in the Larchwood, Huron Village, and

Coolidge Hill Neighborhoods

  • 4. Offer short-term and long-term solutions
  • 5. Acknowledge enforcement and special uses by BB&N, Mt. Auburn

Cemetery, Mt. Auburn Hospital, Shady Hill, and Tufts Health Plan

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Review of Shared Goals

1. Calm traffic, provide clarity, reduce crashes and severity of crashes 2. Improve connectivity, air quality and expand mobility choices by: a. Measuring people, not cars b. Reducing transit delays c. Improving safety, access, parking and comfort for bicycles d. Maintaining mobility for motor vehicles e. Improving safety, attractiveness, noise, and comfort for pedestrians and residents 3. Address cut-through traffic in the Larchwood, Huron Village, and Coolidge Hill Neighborhoods 4. Offer short-term and long-term solutions 5. Acknowledge enforcement and special uses by BB&N, Mt. Auburn Cemetery, Mt. Auburn, Shady Hill, and Tufts Health Plan

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VISSIM Traffic Analysis – Early Results

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Person Throughput Analysis (AM Peak)

Percent Bus Vehicles = 2% Percent Bus Person Throughput = 43% Bus Throughput = 925 persons/hour Vehicle Throughput = 1,200 persons/hour Percent Bus Vehicles = 3% Percent Bus Person Throughput = 56% Bus Throughput = 985 persons/hour Vehicle Throughput = 765 persons/hour

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Bus Travel Time Option B*

  • Existing
  • With Partial Bus Lanes and

Queue Jump * With two-stage crossing

  • About 2 minutes bus

travel time savings with bus lanes

  • About 3.5 minutes

reduction in 90th percentile travel time

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Auto Travel Time Option B*

  • Vehicle operations

improve on Mt Auburn due to signal timing changes at Fresh Pond Parkway

  • Existing
  • With Partial Bus Lanes and

Queue Jump * With two-stage crossing

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Bus Travel Time Option A*

  • Existing
  • With partial bus lane and

queue jump

  • Additional bus lane

between Homer and Aberdeen * With two-stage crossing

  • Additional bus lane

provides over 2.5 minutes travel time savings

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Auto Travel Time and Pedestrian Delay

  • Existing
  • With single-stage crossing

at FP

  • Two-stage crossing at FP
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VISSIM Traffic Analysis – Takeaways & Design Changes

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PLEASE NOTE: The following concepts are drafts; works in progress shown only for the purpose of collecting public feedback for their improvement.

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One-Stage Crossing becomes Two-Stage Crossing

DRAFT CONCEPT

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Change to Aberdeen to Homer Lane Directions

DRAFT CONCEPT

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Aberdeen to Brattle – Transit Lane Very Challenging

DRAFT CONCEPT

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Community-Feedback-Driven Design Alternatives

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Option A – Increase Safety / Eliminate Merging Movement

DRAFT CONCEPT

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Option B – Maintain Merge Lane

DRAFT CONCEPT

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Mount Auburn at Belmont Proposed Design

DRAFT CONCEPT

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Mount Auburn at Belmont: Existing Volumes (AM Peak)

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Mount Auburn at Belmont: Existing Volumes (PM Peak)

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Mount Auburn at Belmont Proposed Design – No Change

DRAFT CONCEPT

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Boat House Circulation – Option B

DRAFT CONCEPT

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BB&N and Boat House Circulation – Option A

DRAFT CONCEPT

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Fresh Pond Parkway Midblock Crossing

  • Concerns about:

– Sight lines – RRFB visibility and recognition – Speeds – Noise – Lack of desire line

DRAFT

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Larch St. Left Restriction

  • Concerns about:

– Circulation

DRAFT

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New Option A – Maintain Existing Geometry

DRAFT DRAFT CONCEPT

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Raised Intersection, Stamped Asphalt or Both?

DRAFT CONCEPT

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Raised Intersection, Stamped Asphalt or Both?

DRAFT CONCEPT

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Raised Intersection, Speed Table, Stamped Asphalt or?

Speed Table Feasibility Research:

  • Many different studies have shown that

speeds can be reduced anywhere from 1% to 21%, but they have rarely been used on high volume or high volume streets in the US.

  • Typically they are used in a dense urban

context or a side street residential context.

  • Although speed tables are generally applied
  • n low-speed facilities in the United States,

they may have applications on approaches to high-speed intersections where low speeds are desired. (NCHRP 613)

Status: Continue to Study

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Speed Activated Speed Limit Reminder Signs

FHWA cites 1 to 14% speed reductions

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Gateway Treatments

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Speed Limit Enforcement Cameras

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Speed Limit Enforcement Cameras – Legislation

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Star Market Driveway

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Star Market Driveway – Option A

DRAFT CONCEPT

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Star Market Driveway – Option B

DRAFT CONCEPT

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Landscaping Ideas

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Fresh Pond Parkway Street Trees

FIRST PLANTINGS LIKELY SPRING 2018

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Star Market Plaza Scheme 1

DRAFT CONCEPT

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Star Market Plaza Scheme 2

DRAFT CONCEPT

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Brattle Plaza Scheme 1

DRAFT CONCEPT

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Brattle Plaza Scheme 2

DRAFT CONCEPT

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Preferred Entrance into Star Market

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Short Term Option

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  • Mt. Auburn Street at Fresh Pond Parkway — Short-Term

DRAFT CONCEPT

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  • Mt. Auburn Street at Fresh Pond Parkway — Short-Term

DRAFT CONCEPT

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We Want Your Feedback

  • Please leave your comments on the roll plans around the room
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Next Steps

  • Second Public Meeting: November 14

– Long and short-term options, their benefits and traffic analysis – Please bring your friends and neighbors!

  • Final Stakeholder Group Meeting and Public Meeting: January
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For More Information:

  • Project Website: www.mass.gov/dcr/mt-auburn-corridor-study
  • If you have comments or suggestions on this project:

– Submit online at: http://www.mass.gov/eea/agencies/dcr/public-

  • utreach/submit-public-comments/

– Write: Department of Conservation and Recreation, Office of Public Outreach, 251 Causeway Street, Suite 600, Boston, MA 02114 – Deadline (pertaining to this meeting): Thursday, 10/15/16

  • Note: Public comments submitted to DCR may be posted on the DCR

website in their entirety.

  • If you have questions, please email:

MaryCatherine.McLean@massmail.state.ma.us