Mount Auburn Street Corridor Study November 14, 2016 Shady Hill - - PowerPoint PPT Presentation

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Mount Auburn Street Corridor Study November 14, 2016 Shady Hill - - PowerPoint PPT Presentation

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Mount Auburn Street Corridor Study November 14, 2016 Shady Hill School Commonwealth of Massachusetts Governor Charles D. Baker Lieutenant Governor Karyn E. Polito Energy and Environmental Secretary Matthew A. Beaton Department of

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November 14, 2016 Shady Hill School

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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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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Agenda

  • Welcome
  • History

– Shared Goals

  • Short-term Concept
  • Long-term Concepts
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Project Area

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Schedule

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Project Overview

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Spring 2016: Gathering Public Input and Setting Goals

  • April – Site Walk
  • 5/5 Stakeholder meeting
  • 6/1 Public Meeting
  • Wikimap: May to June
  • Targeted briefings

Shared Goals Adopted: June 23, 2016

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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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Summer 2016: Developing Concepts

  • July 21 – Major intersections

– Mt. Auburn at Fresh Pond – Mt. Auburn at Brattle

  • August 18 – Major intersections

– Gerry’s Landing Interchanges – Fresh Pond at Huron and Brattle – Explored Alternative Approaches

  • Fresh Pond at Mt. Auburn

Underpass, Roundabout, or Rotary

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Summer 2016: Developing Concepts

2 1 8 9

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Fall 2016: Refining and Advancing Concepts

  • September 15

– Introduction to transit priority – Mt. Auburn at Belmont – Refinements to:

  • Gerry’s Landing 2-T
  • Fresh Pond at Huron and Brattle

– Plaza Charrette – Short-term Improvements

  • November 11

– Parkway Road Diet Feasibility – Transit Priority in Depth – Landscape Improvements – Project-wide Design Concepts:

  • Option A and Option B

– VISSIM Proof of Concepts – Road Safety Audit (RSA) Results

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RSA Results Supportive of Concepts

Some Overall Recommendations:

– Reduce Pavement Area Where Excessive – Clarify Signage, Signals, and Pavement Markings – Tighten Turns to Reduce Speed and Pedestrian/Vehicle Conflicts – Improve Pedestrian and Bicycle Conditions

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PLEASE NOTE:

The following concepts are drafts; works in progress shown only for the purpose

  • f collecting public feedback for their improvement
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Short-term Concept

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  • Mt. Auburn Street at Fresh Pond Parkway

Additional Short-term Improvements:

  • Signal Improvements
  • Dedicated Bus Lane
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Long-term Concept

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North of Mount Auburn Street

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Fresh Pond Parkway: North of Mount Auburn Street

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Tactics Used to Reach Shared Goals

  • Narrow Lanes
  • Enhance

Neighborhood Feel

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Relevant Plans

Highway Safety Imp. Program Crash Clusters (2011-13) Lowell Park Cultural Landscape Report (2014) Huron Ave Reconstruction (2013-16)

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Road Diet for Traffic Calming

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Tree Replacements for Traffic Calming

FIRST PLANTINGS LIKELY SPRING 2018

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Gateway Treatment Opportunity?

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Raised Intersection, Stamped Asphalt, or Both?

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Huron Avenue at Fresh Pond Parkway

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Calming Neighborhood Cut-throughs in Larchwood

  • Speed Tables
  • Raised Crossings
  • Speed Humps
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Option A: Maintain Existing Geometry

DRAFT DRAFT CONCEPT

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Other Things We Tried: Circulation Change, Mid-Block Crossing

  • Concerns About:

– Circulation – Sight lines – RRFB Visibility and Recognition – Speeds – Noise – Lack of Desire Line

DRAFT

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Brattle Street at Fresh Pond Parkway

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Other Things We Tried: 4:3 Road Diet

A.M. QUEUES

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Other Things We Tried: 4:3 Road Diet

P.M. QUEUES

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Other Things We Tried: 4:3 Road Diet – Impacts

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South of Mount Auburn Street

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Gerry’s Landing: Option A

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Gerry’s Landing: Option B

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Gerry’s Landing: Tactics Used

  • Increase Parkland
  • Road Diet
  • Lane Narrowing
  • Protected Bike Lane
  • Shorten Pedestrian Crossings
  • T-up Intersections
  • Organize School and Boathouse Curb Use
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Gerry’s Landing: Relevant Plans

Cambridge Riverfront Plan (2011) Charles River Connectivity Study (2014) Greenough Boulevard Road Diet

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Gerry’s Landing: Main Flow of Traffic

Blue Arrows Show High Volume Movement

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Road Diet and Lane Narrowing

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Pedestrian Crossings Improved

One-Stage Crossings

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Organize Curb Use: Option A

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Organize Curb Use: Option B

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Additional Benefit: 4+ Acres of New Accessible Open Space

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Greenough Side: New Parkland

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Park Programming Exercise

1.6 ACRES OF 3.5 TOTAL

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What Can This Look Like?

THE LAWN ON D

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What Can This Look Like?

HARVARD UNDERPASS PARK

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How Would You Like to Use This Space?

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Eliot Bridge Intersection

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Other Things We Tried

  • Double Roundabout
  • Crossover Diamond
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Mount Auburn Street

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Mount Auburn Street: Option A Mount Auburn Street: Option A

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Mount Auburn Street: Option B

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Tactics Used

  • Road Diet
  • Bus-only Lanes
  • Bus Signal Queue Jump
  • Eliminate Merge
  • T-up Intersection
  • Protected Two-stage Turn Queue
  • Bicycle-only Slip Lanes
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Relevant Plans

Highway Safety Imp. Program Crash Clusters (2011-13) Watertown Comprehensive Plan (2013) Cambridge Bicycle Plan (2015) MBTA Key Bus Route Improvement Program (2013) Cambridge Transit Strategic Plan (2014) Watertown Bicycle Transportation Plan (2003) Strawberry Hill Neighborhood Plan (2003)

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Belmont Street at Mount Auburn Street: Option A

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Cambridge - Watertown Greenway Connection: Option A

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Bicycle Slip Lane

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Star Market Driveway

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Eliminate Lefts into Star Market Driveway: Option A

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Eliminate Lefts into Star Market Driveway: Option B

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Homer Street Entrance into Star Market

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Star Market Plaza Concepts – Please Leave Your Comments

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Star Market Plaza Concepts – Please Leave Your Comments

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At Brattle Street

MOUNT AUBURN

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At Brattle Street: Option A

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At Brattle Street: Option B

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At Brattle Street: RSA Recommends T-up of Intersection

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At Brattle Street: T-up Intersection (Option A)

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Signal Warranted

  • Peak-hour, Four-hour Volumes Warrant a Traffic Signal, Estimates for

Eight-hour Volumes also Warrant a Signal (MUTCD 2009)

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At Brattle Street: Bike Desire Line Study

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Bicycle-only Slip Lane

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Landscaping Opportunity – Please Leave Your Comments

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Landscaping Opportunity – Please Leave Your Comments

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Other Things We Tried: Fifth Lane

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Other Things We Tried: Fifth Lane (at Aberdeen)

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Other Things We Tried: Fifth Lane (at Brattle)

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Other Things We Tried: Westbound Bike Lane

AM PEAK

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Other Things We Tried: Westbound Bike Lane

PM PEAK

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Other Things We Tried: Maintain Merge (Option B)

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Fresh Pond Parkway at Mount Auburn

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Fresh Pond Parkway and Mt Auburn Street: Tactics Used

  • Road Diet
  • Reduce Pavement
  • Raised Pedestrian Crossing
  • Reduce Pedestrian Crossing Time
  • Bicycle Crossing
  • Two-way Protected Bike Lane
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Fresh Pond Parkway at Mount Auburn Street

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Reduce Pavement

363 feet 376 feet

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Reduce Pavement

212 feet 295 feet

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Single to Two-stage Crossing

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New Bike Crossing

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Pedestrian Crossing Operations

72 feet

22 feet 18 feet 34 feet 35 feet

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Road Safety Audit Finding: Reduce Left-turn Violations

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Other Things We Tried: Roundabout

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Roundabout Feasibility: Residential Impacts

.22 acres and two homes

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Roundabout Feasibility: Avoiding Residential Impacts

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Roundabout Feasibility: Parkland Impacts

.48 acres

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Roundabout Feasibility: La Rotonda Size Comparison

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Other Things We Tried: Underpass

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Other Things We Tried: Two Different Double T’s

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Introduction to Transit Priority

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Bus-only Lane and Transit Signal Priority

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VISSIM Traffic Analysis

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VISSIM Animations

  • Existing Conditions
  • Long Term Option A
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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 (AM Peak)

  • Existing
  • With Partial Bus Lanes and

Queue Jump

  • 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 (AM Peak)

  • Vehicle operations

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

  • Existing
  • With Partial Bus Lanes and

Queue Jump

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Bus Travel Time Option A (AM Peak)

  • Existing
  • With partial bus lane and

queue jump

  • Additional bus lane

between Homer and Aberdeen

  • Additional bus lane

provides over 2.5 minutes travel time savings

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Auto Travel Time and Pedestrian Delay Option A (AM Peak)

  • Existing
  • With single-stage

crossing at FP

  • Two-stage crossing at FP
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Bus Travel Time Option A (PM Peak)

  • Existing
  • With Two-Stage Crossing

and 4-Lane Section

  • About 1 minutes bus

travel time savings with bus lanes in the eastbound direction

  • Westbound bus travel

time increases slightly (less than 0.5 minutes) as a result of lane repurposing

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Auto Travel Time Option A (PM Peak)

  • Existing
  • With Two-Stage Crossing and

4-Lane Section

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Operations at Elliot Bridge and Memorial Drive (PM Peak)

Elliot Bridge Approach Delay and Queue (PM Peak)

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We Want Your Feedback

Please leave your comments on the roll plans around the room, and leave your park exercise on the sign in table when you leave.

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Next Steps

  • Final Stakeholder Group Meeting and Public Meeting:

January 2017

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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 – Comment Period (pertaining to this meeting): Monday, November 14 – December 28, 2016

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

website in their entirety.

  • If You Have Questions, Please E-mail:

MaryCatherine.McLean@massmail.state.ma.us